{"id":39576,"date":"2025-03-24T09:49:54","date_gmt":"2025-03-24T01:49:54","guid":{"rendered":"https:\/\/zetarmold.com\/?p=39576"},"modified":"2026-04-29T23:10:20","modified_gmt":"2026-04-29T15:10:20","slug":"%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2%e3%83%87%e3%82%b6%e3%82%a4%e3%83%b3%e3%82%ac%e3%82%a4%e3%83%89","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/ja\/%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2%e3%83%87%e3%82%b6%e3%82%a4%e3%83%b3%e3%82%ac%e3%82%a4%e3%83%89\/","title":{"rendered":"\u5c04\u51fa\u6210\u5f62\u30c7\u30b6\u30a4\u30f3\u30ac\u30a4\u30c9"},"content":{"rendered":"<p>\u5c04\u51fa\u6210\u5f62\u306e\u8a2d\u8a08\u306f\u3001\u9ad8\u54c1\u8cea\u306a\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u90e8\u54c1\u3092\u88fd\u9020\u3059\u308b\u305f\u3081\u306b\u975e\u5e38\u306b\u91cd\u8981\u3067\u3042\u308a\u3001\u69d8\u3005\u306a\u7523\u696d\u306e\u6a5f\u80fd\u6027\u3068\u88fd\u9020\u6027\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u307e\u3059\u3002<\/p>\n<p>Injection molding design involves optimizing part and tool design, focusing on material selection, <a href=\"https:\/\/zetarmold.com\/ja\/%e8%82%89%e5%8e%9a%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2%e9%83%a8%e5%93%81\/\">\u8089\u539a<\/a><sup id=\"fnref1:1\"><a href=\"#fn:1\" class=\"footnote-ref\">1<\/a><\/sup>\u305d\u3057\u3066 <a href=\"https:\/\/zetarmold.com\/ja\/%e3%83%89%e3%83%a9%e3%83%95%e3%83%88%e3%82%a2%e3%83%b3%e3%82%b0%e3%83%ab%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2\/\">\u629c\u304d\u52fe\u914d<\/a><sup id=\"fnref1:2\"><a href=\"#fn:2\" class=\"footnote-ref\">2<\/a><\/sup>s for manufacturability. It\u2019s widely used in automotive, electronics, and packaging industries.<\/p>\n<p>\u5c04\u51fa\u6210\u5f62\u8a2d\u8a08\u306e\u8907\u96d1\u3055\u3092\u7406\u89e3\u3059\u308b\u3053\u3068\u3067\u3001\u88fd\u54c1\u306e\u54c1\u8cea\u3068\u88fd\u9020\u52b9\u7387\u3092\u5927\u5e45\u306b\u5411\u4e0a\u3055\u305b\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u90e8\u54c1\u6027\u80fd\u3068\u88fd\u9020\u5de5\u7a0b\u3092\u6700\u9069\u5316\u3059\u308b\u6226\u7565\u3092\u767a\u898b\u3057\u3066\u304f\u3060\u3055\u3044\u3002<\/p>\n<div class=\"callout-key\" style=\"background:#f0f7ff; border-left:4px solid #2563eb; padding:1em 1.2em; border-radius:6px; margin:1.5em 0;\">\n<strong>\u8981\u70b9<\/strong><\/p>\n<ul>\n<li>Start DFM before the mold design is frozen.<\/li>\n<li>Keep wall thickness, draft, ribs, gates, and ejection decisions connected.<\/li>\n<li>Use visual breaks and defect checks before releasing a design.<\/li>\n<li>Supplier review should link part geometry with tooling cost, cycle time, and quality risk.<\/li>\n<\/ul>\n<\/div>\n<div class=\"claim claim-true\" style=\"background-color: #eff7ef; border-color: #eff7ef; color: #5a8a5a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#16a34a\" stroke-width=\"2\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"\/><\/svg><b>&#8220;Proper injection molding design reduces manufacturing defects.&#8221;<\/b><span class=\"claim-true-or-false\">\u771f<\/span><\/p>\n<p class=\"claim-explanation\">\u9069\u5207\u306a\u629c\u304d\u52fe\u914d\u3084\u5747\u4e00\u306a\u8089\u539a\u3068\u3044\u3063\u305f\u52b9\u679c\u7684\u306a\u8a2d\u8a08\u6226\u7565\u306b\u3088\u308a\u3001\u53cd\u308a\u3084\u30d2\u30b1\u3068\u3044\u3063\u305f\u6b20\u9665\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<\/div>\n<div class=\"claim claim-false\" style=\"background-color: #f7e8e8; border-color: #f7e8e8; color: #8a4a4a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#dc2626\" stroke-width=\"2\"><line x1=\"18\" y1=\"6\" x2=\"6\" y2=\"18\"\/><line x1=\"6\" y1=\"6\" x2=\"18\" y2=\"18\"\/><\/svg><b>&#8220;Injection molding design has no impact on production costs.&#8221;<\/b><span class=\"claim-true-or-false\">\u507d<\/span><\/p>\n<p class=\"claim-explanation\">\u8a2d\u8a08\u306f\u3001\u6750\u6599\u4f7f\u7528\u91cf\u3001\u30b5\u30a4\u30af\u30eb\u6642\u9593\u3001\u5de5\u5177\u5bff\u547d\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u3001\u3053\u308c\u3089\u3059\u3079\u3066\u304c\u751f\u7523\u30b3\u30b9\u30c8\u5168\u4f53\u306e\u8981\u56e0\u3068\u306a\u308b\u3002<\/p>\n<\/div>\n<h2>\u5c04\u51fa\u6210\u5f62\u306e\u305f\u3081\u306b\u30c7\u30b6\u30a4\u30f3\u3059\u308b\u7406\u7531<\/h2>\n<p>Injection molding design is the DFM discipline that makes plastic parts manufacturable, repeatable, and cost-controlled before tooling starts.<\/p>\n<p>\u5c04\u51fa\u6210\u5f62\u306e\u305f\u3081\u306e\u8a2d\u8a08\u306f\u3001\u91d1\u578b\u306e\u8907\u96d1\u3055\u3068\u6750\u6599\u306e\u7279\u6027\u3092\u6700\u9069\u5316\u3059\u308b\u3053\u3068\u306b\u3088\u308a\u3001\u88fd\u9020\u30b3\u30b9\u30c8\u3092\u524a\u6e1b\u3057\u3001\u8010\u4e45\u6027\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002\u81ea\u52d5\u8eca\u3001\u6d88\u8cbb\u8ca1\u3001\u30a8\u30ec\u30af\u30c8\u30ed\u30cb\u30af\u30b9\u7523\u696d\u306b\u3068\u3063\u3066\u4e0d\u53ef\u6b20\u306a\u3001\u3088\u308a\u8fc5\u901f\u306a\u88fd\u9020\u3001\u7cbe\u5ea6\u306e\u5411\u4e0a\u3001\u62e1\u5f35\u6027\u306a\u3069\u306e\u5229\u70b9\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u88fd\u9020\u306e\u8907\u96d1\u3055\u3092\u5224\u65ad\u3059\u308b<\/h3>\n<p>\u8a2d\u8a08\u3092\u898b\u308b\u3053\u3068\u3067\u3001\u88fd\u54c1\u30c7\u30b6\u30a4\u30ca\u30fc\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u88fd\u9020\u4e2d\u306b\u4f55\u304c\u3046\u307e\u304f\u3044\u304b\u306a\u3044\u304b\u3092\u4e88\u6e2c\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u8a2d\u8a08\u306b\u3088\u3063\u3066\u4f55\u304c\u4e88\u60f3\u3055\u308c\u308b\u304b\u304c\u308f\u304b\u308b\u306e\u3067\u3001\u88fd\u54c1\u3092\u4f5c\u308a\u59cb\u3081\u308b\u524d\u306b\u4e0d\u78ba\u5b9f\u6027\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<p>\u307e\u305f\u3001\u88fd\u54c1\u306e\u8907\u96d1\u3055\u3092\u77e5\u308b\u3053\u3068\u3067\u3001\u91d1\u578b\u304c\u3069\u306e\u3088\u3046\u306a\u3082\u306e\u3067\u3042\u308b\u3079\u304d\u304b\u628a\u63e1\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u305d\u3046\u3059\u308c\u3070\u3001\u4f5c\u308a\u305f\u3044\u88fd\u54c1\u306b\u9069\u3057\u305f\u91d1\u578b\u3092\u8a2d\u8a08\u3057\u3066\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<h3>\u88fd\u9020\u53ef\u80fd\u6027\u306e\u78ba\u4fdd<\/h3>\n<p>\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u90e8\u54c1\u3092\u8a2d\u8a08\u30fb\u88fd\u9020\u3059\u308b\u5834\u5408\u3001\u8a2d\u8a08\u3057\u305f\u90e8\u54c1\u304c\u88fd\u9020\u53ef\u80fd\u304b\u3069\u3046\u304b\u306f\u308f\u304b\u308a\u307e\u305b\u3093\u3002\u5c04\u51fa\u6210\u5f62\u306e\u8a2d\u8a08\u306f\u3001\u88fd\u9020\u65b9\u6cd5\u304c\u5b9f\u73fe\u53ef\u80fd\u304b\u3069\u3046\u304b\u3092\u6559\u3048\u3066\u304f\u308c\u307e\u3059\u3002<\/p>\n<p>\u3060\u304b\u3089\u3001\u90e8\u54c1\u304c\u91d1\u578b\u306b\u306f\u307e\u308a\u8fbc\u3093\u3067\u3057\u307e\u3046\u3088\u3046\u306a\u88fd\u9020\u4e0a\u306e\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u304b\u3069\u3046\u304b\u3092\u8abf\u3079\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3002\u3055\u3089\u306b\u91cd\u8981\u306a\u306e\u306f\u3001\u6642\u9593\u3068\u304a\u91d1\u3092\u7bc0\u7d04\u3067\u304d\u308b\u306e\u3067\u3001\u88fd\u54c1\u3092\u3088\u308a\u5b89\u304f\u3001\u3088\u308a\u65e9\u304f\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u3068\u3044\u3046\u3053\u3068\u3067\u3059\u3002<\/p>\n<h3>\u90e8\u54c1\u306e\u6545\u969c\u3092\u9632\u3050<\/h3>\n<p>If you don\u2019t design your injection molded parts properly, they won\u2019t work right or look good. They might not do what they\u2019re supposed to do because of injection molding defects or other mechanical failures. Injection molding design guidelines will help you pick the right molding parameters and avoid big problems that will make your parts not work.<\/p>\n<div class=\"claim claim-true\" style=\"background-color: #eff7ef; border-color: #eff7ef; color: #5a8a5a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#16a34a\" stroke-width=\"2\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"\/><\/svg><b>&#8220;Designing for injection molding ensures superior product consistency.&#8221;<\/b><span class=\"claim-true-or-false\">\u771f<\/span><\/p>\n<p class=\"claim-explanation\">\u6750\u6599\u306e\u6d41\u308c\u3084\u91d1\u578b\u306e\u51b7\u5374\u3068\u3044\u3063\u305f\u8a2d\u8a08\u8981\u7d20\u306b\u5bfe\u51e6\u3059\u308b\u3053\u3068\u3067\u3001\u751f\u7523\u5168\u4f53\u306e\u5747\u4e00\u6027\u3092\u9ad8\u3081\u3001\u4e00\u8cab\u3057\u305f\u88fd\u54c1\u54c1\u8cea\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n<div class=\"claim claim-false\" style=\"background-color: #f7e8e8; border-color: #f7e8e8; color: #8a4a4a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#dc2626\" stroke-width=\"2\"><line x1=\"18\" y1=\"6\" x2=\"6\" y2=\"18\"\/><line x1=\"6\" y1=\"6\" x2=\"18\" y2=\"18\"\/><\/svg><b>&#8220;All products can be designed for injection molding without constraints.&#8221;<\/b><span class=\"claim-true-or-false\">\u507d<\/span><\/p>\n<p class=\"claim-explanation\">\u6750\u6599\u306e\u5236\u9650\u3084\u90e8\u54c1\u306e\u8907\u96d1\u3055\u306b\u3088\u308a\u3001\u3059\u3079\u3066\u306e\u8a2d\u8a08\u304c\u5c04\u51fa\u6210\u5f62\u306b\u9069\u3057\u3066\u3044\u308b\u308f\u3051\u3067\u306f\u306a\u304f\u3001\u8a2d\u8a08\u306b\u5408\u308f\u305b\u305f\u8003\u616e\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<\/div>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/technical-drawings-plastic-parts.webp\" alt=\"Fundamental Principles of Injection Molded Part Design\" class=\"wp-image-53488 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/technical-drawings-plastic-parts.webp 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/technical-drawings-plastic-parts-300x171.webp 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/technical-drawings-plastic-parts-768x439.webp 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/technical-drawings-plastic-parts-18x10.webp 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/technical-drawings-plastic-parts-600x343.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Part design review<\/figcaption><\/figure>\n<h2>\u5c04\u51fa\u6210\u5f62\u90e8\u54c1\u306e\u8a2d\u8a08\u4e0a\u306e\u6ce8\u610f\u70b9\u3068\u306f\uff1f<\/h2>\n<p>\u5c04\u51fa\u6210\u5f62\u90e8\u54c1\u306e\u8a2d\u8a08\u306f\u3001\u88fd\u54c1\u306e\u6a5f\u80fd\u6027\u3001\u88fd\u9020\u6027\u3001\u8cbb\u7528\u5bfe\u52b9\u679c\u3092\u78ba\u4fdd\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3059\u3002<\/p>\n<p>\u5c04\u51fa\u6210\u5f62\u90e8\u54c1\u306e\u4e3b\u306a\u691c\u8a0e\u4e8b\u9805\u306b\u306f\u3001\u6750\u6599\u306e\u9078\u629e\u3001\u8089\u539a\u3001\u629c\u304d\u52fe\u914d\u3001\u30b2\u30fc\u30c8\u306e\u914d\u7f6e\u3001\u30ea\u30d6\u306e\u8a2d\u8a08\u306a\u3069\u304c\u3042\u308a\u3001\u3053\u308c\u3089\u306f\u3059\u3079\u3066\u69cb\u9020\u7684\u5b8c\u5168\u6027\u3001\u88fd\u9020\u6027\u3001\u88fd\u54c1\u54c1\u8cea\u3001\u30b3\u30b9\u30c8\u306b\u5f71\u97ff\u3059\u308b\u3002<\/p>\n<h3>\u30c1\u30e3\u30f3\u30d0\u30fc\u58c1\u539a<\/h3>\n<p>\u3053\u308c\u306f\u3001\u5c04\u51fa\u6210\u5f62\u90e8\u54c1\u3092\u8a2d\u8a08\u3059\u308b\u969b\u306b\u8003\u3048\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u5927\u304d\u306a\u3053\u3068\u306e\u4e00\u3064\u3067\u3059\u3002\u8089\u539a\u306f\u3001\u305d\u306e\u90e8\u54c1\u304c\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u304b\u3001\u3069\u306e\u3088\u3046\u306b\u898b\u3048\u308b\u304b\u3001\u3069\u306e\u7a0b\u5ea6\u30b3\u30b9\u30c8\u304c\u304b\u304b\u308b\u304b\u306a\u3069\u3001\u90e8\u54c1\u306b\u95a2\u3059\u308b\u591a\u304f\u306e\u3053\u3068\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n<p>So, you need to figure out the right wall thickness based on how the part needs to work. You need to think about how much stress the part can take and how long it needs to last to figure out the thinnest wall you can get away with.<\/p>\n<p>\u4e00\u822c\u7684\u306a\u30eb\u30fc\u30eb\u306f\u3001\u5c04\u51fa\u6210\u5f62\u54c1\u5168\u4f53\u306e\u8089\u539a\u3092\u5747\u4e00\u306b\u4fdd\u3064\u3053\u3068\u3067\u3059\u3002\u7406\u60f3\u7684\u306b\u306f\u3001\u8089\u539a\u30921.2mm\u304b\u30893mm\u306e\u9593\u306b\u4fdd\u3061\u305f\u3044\u3002\u8089\u539a\u304c\u8584\u3059\u304e\u308b\u3068\u3001\u9ad8\u3044\u5851\u6027\u5727\u529b\u304c\u5fc5\u8981\u306b\u306a\u308a\u3001\u30ad\u30e3\u30d3\u30c6\u30fc\u30b7\u30e7\u30f3\u304c\u767a\u751f\u3057\u307e\u3059\u3002\u8089\u539a\u304c\u539a\u3059\u304e\u308b\u3068\u3001\u30b5\u30a4\u30af\u30eb\u30bf\u30a4\u30e0\u304c\u9577\u304f\u306a\u308a\u3001\u3088\u308a\u591a\u304f\u306e\u6750\u6599\u3092\u4f7f\u7528\u3059\u308b\u3053\u3068\u306b\u306a\u308a\u3001\u30b3\u30b9\u30c8\u304c\u304b\u304b\u308a\u307e\u3059\u3002<\/p>\n<p>\u8089\u539a\u304c\u5909\u5316\u3059\u308b\u90e8\u54c1\u304c\u3042\u308b\u5834\u5408\u3001\u90e8\u54c1\u3068\u90e8\u54c1\u306e\u9593\u306b\u304d\u308c\u3044\u306a\u79fb\u884c\u304c\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u306b\u306f\u3001\u89d2\u306e\u3042\u308b\u30a8\u30c3\u30b8\u3084\u30b3\u30fc\u30ca\u30fc\u306b\u9762\u53d6\u308a\u3092\u3057\u307e\u3059\u3002\u540c\u69d8\u306b\u3001\u30d5\u30a3\u30ec\u30c3\u30c8\u3084\u30b3\u30fc\u30ca\u30fc\u306b\u30d5\u30a3\u30ec\u30c3\u30c8\u3092\u4f7f\u3046\u3053\u3068\u3067\u3001\u6eb6\u3051\u305f\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u304c\u91d1\u578b\u306b\u5b8c\u5168\u306b\u5145\u586b\u3055\u308c\u3001\u5747\u7b49\u306b\u51b7\u5374\u3055\u308c\u308b\u3088\u3046\u306b\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u30d1\u30fc\u30c6\u30a3\u30f3\u30b0\u30e9\u30a4\u30f3<\/h3>\n<p>\u306b\u3064\u3044\u3066 <a href=\"https:\/\/zetarmold.com\/ja\/%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2%e3%83%91%e3%83%bc%e3%83%86%e3%82%a3%e3%83%b3%e3%82%b0%e3%83%a9%e3%82%a4%e3%83%b3\/\">\u30d1\u30fc\u30c6\u30a3\u30f3\u30b0\u30e9\u30a4\u30f3<\/a><sup id=\"fnref1:3\"><a href=\"#fn:3\" class=\"footnote-ref\">3<\/a><\/sup> \u3068\u306f\u3001\u6700\u7d42\u88fd\u54c1\u3092\u4f5c\u308b\u305f\u3081\u306b\u91d1\u578b\u306e2\u3064\u306e\u534a\u5206\u304c\u5408\u308f\u3055\u308b\u90e8\u5206\u3067\u3059\u3002\u30d1\u30fc\u30c6\u30a3\u30f3\u30b0\u30e9\u30a4\u30f3\u306e\u8a2d\u8a08\u306b\u30df\u30b9\u30de\u30c3\u30c1\u3084\u30ba\u30ec\u304c\u3042\u308b\u3068\u3001\u6210\u5f62\u54c1\u306b\u30d0\u30ea\u6b20\u9665\u304c\u767a\u751f\u3059\u308b\u3053\u3068\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u3053\u306e\u3088\u3046\u306a\u6b20\u9665\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u308b\u306b\u306f\u3001\u30d1\u30fc\u30c6\u30a3\u30f3\u30b0\u30e9\u30a4\u30f3\u3092\u30b7\u30f3\u30d7\u30eb\u3067\u76f4\u7dda\u7684\u306b\u8a2d\u8a08\u3059\u308b\u3053\u3068\u304c\u91cd\u8981\u3067\u3059\u3002\u30b7\u30f3\u30d7\u30eb\u306a\u30d1\u30fc\u30c6\u30a3\u30f3\u30b0\u30fb\u30e9\u30a4\u30f3\u306f\u3001\u88fd\u4f5c\u304c\u7c21\u5358\u3067\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u5c11\u306a\u304f\u3066\u6e08\u307f\u3001\u6700\u7d42\u88fd\u54c1\u306e\u5168\u4f53\u7684\u306a\u4ed5\u4e0a\u304c\u308a\u3082\u826f\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<p>\u30d1\u30fc\u30c6\u30a3\u30f3\u30b0\u30e9\u30a4\u30f3\u3092\u8a2d\u8a08\u3059\u308b\u5834\u5408\u3001\u901a\u5e38\u306f\u4e38\u307f\u3092\u5e2f\u3073\u305f\u8868\u9762\u3067\u306f\u306a\u304f\u3001\u92ed\u89d2\u306e\u30a8\u30c3\u30b8\u306b\u914d\u7f6e\u3059\u308b\u306e\u304c\u30d9\u30b9\u30c8\u3067\u3059\u3002\u3053\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u516c\u5dee\u306e\u53b3\u3057\u3044\u91d1\u578b\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u306a\u304f\u306a\u308a\u3001\u88fd\u9020\u30b3\u30b9\u30c8\u304c\u4e0a\u6607\u3059\u308b\u306e\u3092\u9632\u3050\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u307e\u305f\u3001\u30d1\u30fc\u30c6\u30a3\u30f3\u30b0\u30e9\u30a4\u30f3\u304c\u5b8c\u6210\u54c1\u3067\u3069\u306e\u3088\u3046\u306b\u898b\u3048\u308b\u304b\u3082\u8003\u3048\u3066\u304a\u304d\u305f\u3044\u3002<\/p>\n<p>\u6587\u5b57\u3084\u30ed\u30b4\u306e\u3088\u3046\u306a\u91cd\u8981\u306a\u8868\u9762\u3084\u7279\u5fb4\u3092\u6a2a\u5207\u3089\u306a\u3044\u3088\u3046\u306b\u3001\u3067\u304d\u308b\u3060\u3051\u898b\u3048\u306a\u3044\u3088\u3046\u306b\u8a2d\u8a08\u3057\u305f\u3044\u3082\u306e\u3067\u3059\u3002\u3053\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u5b8c\u6210\u54c1\u306e\u5916\u89b3\u304c\u601d\u3044\u901a\u308a\u306b\u306a\u308a\u3001\u5c04\u51fa\u6210\u5f62\u3067\u3088\u308a\u826f\u3044\u90e8\u54c1\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30c9\u30e9\u30d5\u30c8\u89d2\u5ea6<\/h3>\n<p>The draft angle on the surface of an injection molded part allows for easy removal from the mold without damage. The required draft angle depends on factors such as wall thickness, material shrinkage, post-processing finishing needs, etc.<\/p>\n<p>\u5e73\u5747\u7684\u306a\u30c9\u30e9\u30d5\u30c8\u306e\u6df1\u3055\u306f\u3001\u6df1\u30551\u30a4\u30f3\u30c1\u306b\u3064\u304d1\u5ea6\u305a\u3064\u5897\u3059\u3079\u304d\u3060\u304c\u3001\u307b\u3068\u3093\u3069\u306e\u30d1\u30fc\u30c4\u3067\u306f\u5c11\u306a\u304f\u3068\u30821.5\u5ea6\u304b\u30892\u5ea6\u304c\u5b89\u5168\u3067\u3042\u308b\u3002\u91cd\u3044\u30c6\u30af\u30b9\u30c1\u30e3\u30fc\u3067\u306f\u3001\u6df1\u30551\u30a4\u30f3\u30c1\u306b\u3064\u304d5\u5ea6\u307e\u3067\u5fc5\u8981\u306a\u5834\u5408\u3082\u3042\u308b\u3002\u629c\u304d\u52fe\u914d\u304c\u4e0d\u5341\u5206\u3060\u3068\u3001\u30c9\u30e9\u30c3\u30b0\u30de\u30fc\u30af\u306a\u3069\u306e\u5916\u89b3\u4e0a\u306e\u6b20\u9665\u306b\u3064\u306a\u304c\u308b\u3053\u3068\u304c\u3042\u308b\u3002<\/p>\n<p>CAD\u30b7\u30b9\u30c6\u30e0\u3092\u4f7f\u3063\u3066\u5c04\u51fa\u6210\u5f62\u90e8\u54c1\u3092\u8a2d\u8a08\u3059\u308b\u969b\u3001\u629c\u304d\u52fe\u914d\u3092\u8ffd\u52a0\u3059\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002\u3057\u304b\u3057\u3001\u8907\u96d1\u3055\u3092\u6700\u5c0f\u9650\u306b\u3059\u308b\u305f\u3081\u306b\u3001\u8a2d\u8a08\u306e\u6700\u7d42\u6bb5\u968e\u3067\u3053\u308c\u3092\u884c\u3046\u306e\u304c\u6700\u5584\u3067\u3059\u3002<\/p>\n<h3>\u30ea\u30d6\u3068\u30dc\u30b9<\/h3>\n<p>\u30ea\u30d6\u306f\u30012\u3064\u306e\u58c1\u304c90\u5ea6\u306e\u89d2\u5ea6\u3067\u63a5\u3059\u308b\u90e8\u5206\u306e\u58c1\u3092\u5f37\u5316\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u3002\u90e8\u54c1\u306e\u5f37\u5ea6\u3092\u9ad8\u3081\u3001\u91cd\u91cf\u3092\u652f\u3048\u308b\u306e\u306b\u5f79\u7acb\u3064\u3002\u30dc\u30b9\u306f\u3001\u4ed6\u306e\u90e8\u54c1\u3092\u53d6\u308a\u4ed8\u3051\u305f\u308a\u3001\u4e26\u3079\u305f\u308a\u3059\u308b\u305f\u3081\u306b\u4f7f\u7528\u3055\u308c\u308b\u3001\u90e8\u54c1\u4e0a\u306e\u76db\u308a\u4e0a\u304c\u3063\u305f\u90e8\u5206\u3067\u3059\u3002\u307e\u305f\u3001\u30cd\u30b8\u7a74\u3084\u30b9\u30ed\u30c3\u30c8\u306e\u3088\u3046\u306a\u90e8\u5206\u306e\u5f37\u5ea6\u3092\u9ad8\u3081\u308b\u3002<\/p>\n<p>The base thickness of the support ribs should be no more than two-thirds of the thickness of the adjacent wall. The rib height should not exceed 2.5 times the nominal wall thickness (2.5T). Shrinkage must be taken into account. To avoid sink marks, the thickness of the boss should not exceed 60% of the overall wall thickness.<\/p>\n<h3>\u30b2\u30fc\u30c8\u306e\u4f4d\u7f6e\u3068\u7a2e\u985e<\/h3>\n<p>\u5c04\u51fa\u6210\u5f62\u306b\u304a\u3051\u308b\u30b2\u30fc\u30c8\u306f\u3001\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u90e8\u54c1\u306b\u76f4\u7d50\u3057\u3001\u30ad\u30e3\u30d3\u30c6\u30a3\u5185\u3078\u306e\u6eb6\u878d\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u6a39\u8102\u306e\u6d41\u308c\u3092\u5236\u5fa1\u3059\u308b\u975e\u5e38\u306b\u91cd\u8981\u306a\u90e8\u54c1\u3067\u3042\u308b\u3002\u30b2\u30fc\u30c8\u306e\u5927\u304d\u3055\u3001\u5f62\u3001\u4f4d\u7f6e\u306f\u5b8c\u6210\u54c1\u306b\u5927\u304d\u306a\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u3002\u5f37\u5ea6\u3084\u898b\u305f\u76ee\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n<p>\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u5c04\u51fa\u6210\u5f62\u91d1\u578b\u306b\u4f7f\u7528\u3055\u308c\u308b\u30b2\u30fc\u30c8\u30c7\u30b6\u30a4\u30f3\u306b\u306f\u3001\u30a8\u30c3\u30b8\u3001\u30b5\u30d6\u3001\u30db\u30c3\u30c8\u30c1\u30c3\u30d7\u3001\u30b9\u30d7\u30eb\u3068\u3044\u30464\u3064\u306e\u4e00\u822c\u7684\u306a\u30bf\u30a4\u30d7\u304c\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u540d\u306e\u901a\u308a\u3001\u30a8\u30c3\u30b8\u30b2\u30fc\u30c8\u306f\u5e73\u3089\u306a\u90e8\u54c1\u306e\u7aef\u306b\u3042\u308a\u3001\u30d1\u30fc\u30c6\u30a3\u30f3\u30b0\u30e9\u30a4\u30f3\u306b\u50b7\u8de1\u3092\u6b8b\u3057\u307e\u3059\u3002<\/p>\n<p>\u30b5\u30d6\u30b2\u30fc\u30c8\u306f\u4e00\u822c\u7684\u3067\u3001\u30d0\u30ca\u30ca\u30b2\u30fc\u30c8\u3001\u30b9\u30de\u30a4\u30ea\u30fc\u30b2\u30fc\u30c8\u3001\u30c8\u30f3\u30cd\u30eb\u30b2\u30fc\u30c8\u306a\u3069\u3055\u307e\u3056\u307e\u306a\u30d0\u30ea\u30a8\u30fc\u30b7\u30e7\u30f3\u304c\u3042\u308b\u3002\u3053\u308c\u3089\u306f\u81ea\u52d5\u30c8\u30ea\u30df\u30f3\u30b0\u306e\u305f\u3081\u306b\u30a8\u30b8\u30a7\u30af\u30bf\u30fc\u30d4\u30f3\u3092\u5fc5\u8981\u3068\u3057\u3001\u3088\u308a\u826f\u3044\u5145\u586b\u306e\u305f\u3081\u306b\u30b2\u30fc\u30c8\u306e\u4f4d\u7f6e\u3092\u30d1\u30fc\u30c6\u30a3\u30f3\u30b0\u30e9\u30a4\u30f3\u304b\u3089\u9060\u3056\u3051\u308b\u306e\u306b\u5f79\u7acb\u3064\u3002<\/p>\n<p>\u30db\u30c3\u30c8\u30c1\u30c3\u30d7\u30b2\u30fc\u30c8\u306f\u3001\u30db\u30c3\u30c8\u30e9\u30f3\u30ca\u30fc\u5c04\u51fa\u6210\u5f62\u91d1\u578b\u306b\u306e\u307f\u4f7f\u7528\u3055\u308c\u307e\u3059\u3002\u901a\u5e38\u3001\u4e38\u578b\u3084\u30c6\u30fc\u30d1\u30fc\u578b\u3067\u306f\u91d1\u578b\u306e\u4e0a\u90e8\u306b\u914d\u7f6e\u3055\u308c\u307e\u3059\u3002\u4e00\u65b9\u3001\u30b2\u30fc\u30c8\u306f\u5927\u304d\u306a\u5186\u7b52\u5f62\u306e\u5358\u4e00\u30ad\u30e3\u30d3\u30c6\u30a3\u91d1\u578b\u306b\u6700\u9069\u3067\u3059\u3002\u901a\u5e38\u3001\u63a5\u89e6\u90e8\u306b\u5927\u304d\u306a\u50b7\u304c\u6b8b\u308a\u307e\u3059\u304c\u3001\u88fd\u9020\u3084\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306f\u7c21\u5358\u3067\u3059\u3002<\/p>\n<p>\u4f7f\u7528\u3059\u308b\u30b2\u30fc\u30c8\u306e\u30c7\u30b6\u30a4\u30f3\u3068\u30bf\u30a4\u30d7\u306f\u3001\u30d1\u30fc\u30c4\u306e\u30c7\u30b6\u30a4\u30f3\u3001\u9078\u629e\u3059\u308b\u7d20\u6750\u3001\u5fc5\u8981\u306a\u5bf8\u6cd5\u3001\u30d1\u30fc\u30c4\u3092\u3069\u306e\u3088\u3046\u306b\u898b\u305b\u305f\u3044\u304b\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u307e\u3059\u3002\u7559\u610f\u70b9\u3068\u3057\u3066\u306f\u3001\u90e8\u54c1\u306b\u5927\u304d\u306a\u30b9\u30c8\u30ec\u30b9\u3084\u640d\u50b7\u3092\u4e0e\u3048\u306a\u3044\u5834\u6240\u306b\u30b2\u30fc\u30c8\u3092\u8a2d\u7f6e\u3059\u308b\u3053\u3068\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u90e8\u54c1\u3092\u30e9\u30f3\u30ca\u30fc\u304b\u3089\u5207\u308a\u96e2\u3059\u5fc5\u8981\u304c\u306a\u3044\u3088\u3046\u306b\u3057\u3001\u90e8\u54c1\u306e\u6700\u3082\u539a\u3044\u90e8\u5206\u306b\u30b2\u30fc\u30c8\u3092\u5165\u308c\u3066\u3001\u3046\u307e\u304f\u5145\u586b\u3067\u304d\u308b\u3088\u3046\u306b\u3057\u305f\u3044\u3002\u90e8\u54c1\u306e\u5927\u304d\u3055\u3001\u5f62\u72b6\u3001\u4f7f\u7528\u3059\u308b\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306e\u7a2e\u985e\u306b\u3088\u3063\u3066\u306f\u3001\u8907\u6570\u306e\u30b2\u30fc\u30c8\u304c\u5fc5\u8981\u306b\u306a\u308b\u3053\u3068\u3082\u3042\u308b\u3002<\/p>\n<h3>\u30a8\u30b8\u30a7\u30af\u30bf\u30fc\u30d4\u30f3<\/h3>\n<p>\u3053\u308c\u306f\u5c04\u51fa\u6210\u5f62\u306e\u30bb\u30c3\u30c8\u30a2\u30c3\u30d7\u306e\u91cd\u8981\u306a\u90e8\u5206\u3067\u3001\u90e8\u54c1\u304c\u5341\u5206\u306b\u51b7\u5374\u3055\u308c\u305f\u5f8c\u3001\u91d1\u578b\u304b\u3089\u62bc\u3057\u51fa\u3059\u306e\u3092\u52a9\u3051\u308b\u3002\u6210\u5f62\u54c1\u306b\u8de1\u304c\u6b8b\u308b\u3053\u3068\u304c\u3088\u304f\u3042\u308a\u307e\u3059\u3002\u305d\u306e\u305f\u3081\u3001\u30d4\u30f3\u306e\u79fb\u52d5\u65b9\u5411\u306b\u5bfe\u3057\u3066\u5782\u76f4\u306a\u5e73\u9762\u3067\u8a2d\u8a08\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>Part shape, draft angle, waThe gate in injection molding is a very important part that is directly connected to the plastic part and controls the flow of molten plastic resin into the cavity. The size, shape, and location of the gate have a big impact on the finished product. It affects how strong it is and how it looks.<\/p>\n<p>\u4f8b\u3048\u3070\u3001\u7c98\u7740\u6027\u306e\u9ad8\u3044\u6a39\u8102\u306f\u3088\u308a\u5927\u304d\u306a\u96e2\u578b\u529b\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002\u540c\u69d8\u306b\u3001\u3088\u308a\u67d4\u3089\u304b\u3044\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u30dd\u30ea\u30de\u30fc\u306f\u3001\u6210\u5f62\u4e0d\u826f\u3092\u907f\u3051\u308b\u305f\u3081\u306b\u3001\u8131\u578b\u529b\u3092\u5206\u6563\u3055\u305b\u308b\u305f\u3081\u306b\u3001\u3088\u308a\u5e45\u306e\u5e83\u3044\u3001\u307e\u305f\u306f\u3088\u308a\u591a\u304f\u306e\u30d4\u30f3\u3092\u5fc5\u8981\u3068\u3057\u307e\u3059\u3002<\/p>\n<h3>\u30a2\u30f3\u30c0\u30fc\u30ab\u30c3\u30c8\u3068\u30b9\u30ec\u30c3\u30c9<\/h3>\n<p>Undercuts and threads are recessed or overhanging features that make it difficult for a plastic part to be ejected from the mold with a single pull. The design should ensure that the part can be ejected with a single, one-way pull. Doing so will help keep injection molding costs low. Therefore, it is important to avoid threads and undercuts when designing injection molded parts.<\/p>\n<p>\u30a2\u30f3\u30c0\u30fc\u30ab\u30c3\u30c8\u3092\u907f\u3051\u308b\u306b\u306f\u3001\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u3092\u30c9\u30ed\u30fc\u30fb\u30e9\u30a4\u30f3\u306b\u5e73\u884c\u306b\u914d\u7f6e\u3057\u3001\u30ea\u30d5\u30bf\u30fc\u3068\u30b9\u30e9\u30a4\u30c9\u3092\u8a2d\u8a08\u306b\u7d44\u307f\u8fbc\u3080\u3002\u30ea\u30d5\u30bf\u30fc\u306f\u3001\u629c\u304d\u52fe\u914d\u306a\u3057\u3067\u5185\u90e8\u306e\u30a2\u30f3\u30c0\u30fc\u30ab\u30c3\u30c8\u3092\u9003\u304c\u3059\u306e\u306b\u5f79\u7acb\u3061\u307e\u3059\u3002\u90e8\u54c1\u304c\u51b7\u3048\u305f\u5f8c\u3001\u30ea\u30d5\u30bf\u30fc\u306f\u659c\u3081\u4e0a\u65b9\u306b\u62bc\u3057\u4e0a\u3052\u3001\u30a2\u30f3\u30c0\u30fc\u30ab\u30c3\u30c8\u3092\u91d1\u578b\u304b\u3089\u53d6\u308a\u9664\u304d\u307e\u3059\u3002\u4e00\u65b9\u3001\u30b9\u30e9\u30a4\u30c9\u306f\u3001\u30b3\u30a2\u30e2\u30fc\u30eb\u30c9\u306b\u53d6\u308a\u4ed8\u3051\u3089\u308c\u305f\u89d2\u5ea6\u306e\u3064\u3044\u305f\u30d4\u30f3\u3092\u4f7f\u3063\u3066\u3001\u5916\u90e8\u306e\u30a2\u30f3\u30c0\u30fc\u30ab\u30c3\u30c8\u3092\u53d6\u308a\u9664\u304d\u307e\u3059\u3002<\/p>\n<h3>\u4e38\u307f\u3092\u5e2f\u3073\u305f\u30b3\u30fc\u30ca\u30fc<\/h3>\n<p>\u5c04\u51fa\u6210\u5f62\u3092\u3088\u308a\u52b9\u7387\u7684\u306b\u3001\u3088\u308a\u9ad8\u54c1\u8cea\u306b\u3059\u308b\u305f\u3081\u306b\u3001\u8a2d\u8a08\u8005\u3084\u30a8\u30f3\u30b8\u30cb\u30a2\u306f\u3001\u30b7\u30e3\u30fc\u30d7\u306a\u30b3\u30fc\u30ca\u30fc\u3084\u30a8\u30c3\u30b8\u306e\u4ee3\u308f\u308a\u306b\u4e38\u307f\u3092\u5e2f\u3073\u305f\u5f62\u72b6\u3092\u4f7f\u7528\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u92ed\u5229\u306a\u30a8\u30c3\u30b8\u306f\u5145\u586b\u306b\u5927\u304d\u306a\u5727\u529b\u3092\u5fc5\u8981\u3068\u3059\u308b\u305f\u3081\u3001\u6210\u5f62\u54c1\u306b\u30c0\u30e1\u30fc\u30b8\u3092\u4e0e\u3048\u305f\u308a\u3001\u5c04\u51fa\u6642\u306b\u4e0d\u5177\u5408\u3092\u5f15\u304d\u8d77\u3053\u3057\u305f\u308a\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002\u89d2\u306e\u5185\u5074\u3068\u5916\u5074\u306b\u4e38\u307f\u3092\u6301\u305f\u305b\u308b\u3053\u3068\u3067\u3001\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306e\u6d41\u308c\u304c\u826f\u304f\u306a\u308a\u3001\u5fdc\u529b\u3084\u3072\u3073\u5272\u308c\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u5185\u5074\u30b3\u30fc\u30ca\u30fc\u306e\u534a\u5f84\u306f\u3001\u96a3\u63a5\u3059\u308b\u8089\u539a\u306e\u5c11\u306a\u304f\u3068\u308250%\u3068\u3059\u308b\u3002\u4e00\u65b9\u3001\u5916\u5074\u306e\u30b3\u30fc\u30ca\u30fc\u306f\u3001\u96a3\u63a5\u3059\u308b\u8089\u539a\u306e150%\u3068\u3059\u308b\u3002\u30dc\u30b9\u3084\u30b9\u30ca\u30c3\u30d7\u30d5\u30a3\u30c3\u30c8\u306e\u3088\u3046\u306a\u5782\u76f4\u306e\u30d5\u30a3\u30fc\u30c1\u30e3\u30fc\u306f\u3001\u30d9\u30fc\u30b9\u3092\u4e38\u304f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30dc\u30b9\u306e\u534a\u5f84\u306f\u3001\u96a3\u63a5\u3059\u308b\u8089\u539a\u306e25%\u3068\u3057\u3001\u6700\u5c0f\u534a\u5f84\u306f0.015\u30a4\u30f3\u30c1\uff080.381mm\uff09\u3068\u3059\u308b\u3002<\/p>\n<h3>\u8868\u9762\u4ed5\u4e0a\u3052<\/h3>\n<p>\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u90e8\u54c1\u306b\u306f\u3055\u307e\u3056\u307e\u306a\u8868\u9762\u4ed5\u4e0a\u3052\u304c\u3042\u308a\u307e\u3059\u3002\u3053\u308c\u3089\u306e\u4ed5\u4e0a\u3052\u306f\u3001\u90e8\u54c1\u306e\u8cea\u611f\u3001\u5916\u89b3\u3001\u624b\u89e6\u308a\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002\u9069\u5207\u306a\u4ed5\u4e0a\u3052\u3092\u9078\u629e\u3059\u308b\u3053\u3068\u306f\u3001\u8a2d\u8a08\u6bb5\u968e\u3067\u91cd\u8981\u3067\u3059\u3002\u305d\u308c\u306b\u3088\u3063\u3066\u5fc5\u8981\u306a\u5de5\u5177\u3084\u6750\u6599\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002\u7c97\u3044\u4ed5\u4e0a\u3052\u306b\u306f\u9ad8\u3044\u629c\u304d\u52fe\u914d\u304c\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<p>\u307e\u305f\u3001\u9078\u3076\u6750\u6599\u306b\u3082\u5f71\u97ff\u3057\u307e\u3059\u3002\u5e0c\u671b\u3059\u308b\u4ed5\u4e0a\u304c\u308a\u306b\u3059\u308b\u305f\u3081\u306b\u3001\u91d1\u578b\u306e\u8868\u9762\u3092\u6574\u3048\u308b\u5fc5\u8981\u304c\u3042\u308b\u304b\u3082\u3057\u308c\u307e\u305b\u3093\u3002\u91d1\u578b\u8868\u9762\u306e\u6b20\u9665\u306f\u90e8\u54c1\u306b\u73fe\u308c\u307e\u3059\u3002\u90e8\u54c1\u304c\u91d1\u578b\u304b\u3089\u51fa\u305f\u5f8c\u306b\u3057\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u4f5c\u696d\u304c\u591a\u3051\u308c\u3070\u591a\u3044\u307b\u3069\u3001\u305d\u306e\u5206\u30b3\u30b9\u30c8\u304c\u304b\u304b\u308a\u3001\u91d1\u578b\u88fd\u4f5c\u306b\u304b\u304b\u308b\u6642\u9593\u3082\u9577\u304f\u306a\u308a\u307e\u3059\u3002<\/p>\n<h3>\u7d20\u6750\u306e\u9078\u629e<\/h3>\n<p>\u5c04\u51fa\u6210\u5f62\u3067\u306f\u3001\u305d\u308c\u305e\u308c\u72ec\u81ea\u306e\u7269\u7406\u7684\u30fb\u6a5f\u68b0\u7684\u7279\u6027\u3092\u6301\u3064\u3001\u3055\u307e\u3056\u307e\u306a\u7a2e\u985e\u306e\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u6a39\u8102\u3092\u4f7f\u7528\u3057\u307e\u3059\u3002\u3069\u306e\u6750\u6599\u3092\u9078\u3076\u304b\u306b\u3088\u3063\u3066\u3001\u305d\u306e\u90e8\u54c1\u304c\u3069\u306e\u3088\u3046\u306a\u74b0\u5883\u3067\u3069\u306e\u3088\u3046\u306b\u6a5f\u80fd\u3059\u308b\u304b\u304c\u6c7a\u307e\u308a\u307e\u3059\u3002\u5c04\u51fa\u6210\u5f62\u7528\u306e\u6750\u6599\u3092\u9078\u3076\u969b\u306b\u306f\u3001\u6750\u6599\u306e\u53ce\u7e2e\u7387\u3001\u30d5\u30a3\u30c3\u30c8\u611f\u3001\u30b3\u30b9\u30c8\u306a\u3069\u3092\u8003\u616e\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306e\u53ce\u7e2e\u7387\u306f\u3001\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306e\u7a2e\u985e\u3084\u52a0\u5de5\u65b9\u6cd5\u306b\u3088\u3063\u3066\u7570\u306a\u308a\u3001\u90e8\u54c1\u306e\u6a5f\u80fd\u3084\u898b\u305f\u76ee\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002\u307e\u305f\u3001\u305d\u306e\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u304c\u30cd\u30b8\u3084\u6eb6\u63a5\u306a\u3069\u3067\u3069\u306e\u7a0b\u5ea6\u7d44\u307f\u7acb\u3066\u3089\u308c\u308b\u304b\u3082\u8003\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306b\u9069\u3057\u305f\u7279\u6027\u3092\u6301\u305f\u305b\u308b\u3053\u3068\u3082\u91cd\u8981\u3067\u3059\u304c\u3001\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u3092\u5165\u624b\u3057\u3001\u90e8\u54c1\u306b\u3057\u3001\u4ed5\u4e0a\u3052\u308b\u307e\u3067\u306b\u3069\u308c\u3060\u3051\u306e\u30b3\u30b9\u30c8\u304c\u304b\u304b\u308b\u304b\u3092\u8003\u3048\u3001\u6700\u5c0f\u9650\u306e\u30b3\u30b9\u30c8\u3067\u88fd\u9020\u3067\u304d\u308b\u3088\u3046\u306b\u3059\u308b\u3053\u3068\u3082\u5fc5\u8981\u3067\u3059\u3002<\/p>\n<div class=\"claim claim-true\" style=\"background-color: #eff7ef; border-color: #eff7ef; color: #5a8a5a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#16a34a\" stroke-width=\"2\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"\/><\/svg><b>&#8220;Uniform wall thickness is crucial in injection molding design.&#8221;<\/b><span class=\"claim-true-or-false\">\u771f<\/span><\/p>\n<p class=\"claim-explanation\">\u5747\u4e00\u306a\u8089\u539a\u306f\u3001\u5fdc\u529b\u3068\u53cd\u308a\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u5b89\u5b9a\u3057\u305f\u9ad8\u54c1\u8cea\u306e\u90e8\u54c1\u751f\u7523\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n<div class=\"claim claim-false\" style=\"background-color: #f7e8e8; border-color: #f7e8e8; color: #8a4a4a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#dc2626\" stroke-width=\"2\"><line x1=\"18\" y1=\"6\" x2=\"6\" y2=\"18\"\/><line x1=\"6\" y1=\"6\" x2=\"18\" y2=\"18\"\/><\/svg><b>&#8220;Draft angles are not necessary for injection molding parts.&#8221;<\/b><span class=\"claim-true-or-false\">\u507d<\/span><\/p>\n<p class=\"claim-explanation\">\u629c\u304d\u52fe\u914d\u306f\u91d1\u578b\u304b\u3089\u306e\u96e2\u578b\u3092\u5bb9\u6613\u306b\u3057\u3001\u6392\u51fa\u6642\u306e\u7834\u640d\u30ea\u30b9\u30af\u3092\u4f4e\u6e1b\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/plastic-mold-design-diagram.webp\" alt=\"Detailed plastic mold design diagram\" class=\"wp-image-53490 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/plastic-mold-design-diagram.webp 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/plastic-mold-design-diagram-300x171.webp 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/plastic-mold-design-diagram-768x439.webp 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/plastic-mold-design-diagram-18x10.webp 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/plastic-mold-design-diagram-600x343.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Mold design diagram<\/figcaption><\/figure>\n<h2>\u5c04\u51fa\u6210\u5f62\u91d1\u578b\u8a2d\u8a08\u306e\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\u3068\u306f\uff1f<\/h2>\n<p>\u5c04\u51fa\u6210\u5f62\u7528\u91d1\u578b\u306e\u52b9\u679c\u7684\u306a\u8a2d\u8a08\u306f\u3001\u69d8\u3005\u306a\u7523\u696d\u306b\u304a\u3044\u3066\u9ad8\u54c1\u8cea\u306a\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u90e8\u54c1\u3092\u52b9\u7387\u7684\u304b\u3064\u4e00\u8cab\u3057\u3066\u751f\u7523\u3059\u308b\u305f\u3081\u306b\u975e\u5e38\u306b\u91cd\u8981\u3067\u3059\u3002<\/p>\n<p>\u5c04\u51fa\u6210\u5f62\u91d1\u578b\u8a2d\u8a08\u306e\u4e3b\u306a\u30ac\u30a4\u30c9\u30e9\u30a4\u30f3\uff1a\u9069\u5207\u306a\u6750\u6599\u306e\u9078\u629e\u3001\u52b9\u679c\u7684\u306a\u51b7\u5374\u30b7\u30b9\u30c6\u30e0\u306e\u78ba\u4fdd\u3001\u90e8\u54c1\u6392\u51fa\u306e\u6700\u9069\u5316\u3002\u3053\u308c\u3089\u306e\u5b9f\u8df5\u306f\u3001\u6210\u5f62\u30d7\u30ed\u30bb\u30b9\u306e\u52b9\u7387\u3092\u6539\u5584\u3057\u3001\u6b20\u9665\u3092\u6e1b\u3089\u3057\u3001\u8010\u4e45\u6027\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/p>\n<div class=\"factory-insight\" data-fact-ids=\"facility.in_house_mold_manufacturing,team.senior_engineers_8,equipment.injection_machines_47\" style=\"background:#f0f7ff;border-left:4px solid #0066cc;padding:12px 16px;margin:1.5em 0;\"><strong>\ud83c\udfed ZetarMold Factory Insight<\/strong><br \/>From our factory design reviews, the ZetarMold in-house mold manufacturing facility lets our engineers connect wall thickness, draft, gate location, cooling, and ejection decisions before steel is cut. For DFM-sensitive parts, 8 senior engineers can review tooling risk, and our production planning can compare the design against 47 injection molding machines before quoting and sampling.<\/div>\n<h3>\u91d1\u578b\u30d9\u30fc\u30b9\u3068\u30ad\u30e3\u30d3\u30c6\u30a3\u306e\u30ec\u30a4\u30a2\u30a6\u30c8<\/h3>\n<p>\u91d1\u578b\u306f\u3001\u30e2\u30fc\u30eb\u30c9\u30d9\u30fc\u30b9\u3001\u30ad\u30e3\u30d3\u30c6\u30a3\u3001\u30b3\u30a2\u30a4\u30f3\u30b5\u30fc\u30c8\u3001\u305d\u306e\u4ed6\u306e\u90e8\u54c1\u304b\u3089\u69cb\u6210\u3055\u308c\u308b\u3002\u30e2\u30fc\u30eb\u30c9\u30fb\u30d9\u30fc\u30b9\u306f\u91d1\u578b\u306e\u571f\u53f0\u3068\u306a\u308a\u3001\u30ad\u30e3\u30d3\u30c6\u30a3\u3068\u30b3\u30a2\u30fb\u30a4\u30f3\u30b5\u30fc\u30c8\u306f\u90e8\u54c1\u3092\u5f62\u4f5c\u308a\u307e\u3059\u3002\u91d1\u578b\u30c4\u30fc\u30ea\u30f3\u30b0\u306e\u8a2d\u8a08\u306f\u3001\u6210\u5f62\u30d7\u30ed\u30bb\u30b9\u306e\u6b63\u78ba\u3055\u3068\u4e00\u8cab\u6027\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002CNC\u30de\u30b7\u30cb\u30f3\u30b0\u306f\u3001\u8907\u96d1\u306a\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u5c04\u51fa\u6210\u5f62\u91d1\u578b\u306b\u4e0d\u53ef\u6b20\u306a\u6b63\u78ba\u306a\u5782\u76f4\u5782\u76f4\u58c1\u3092\u5b9f\u73fe\u3057\u307e\u3059\u3002<\/p>\n<p>\u91d1\u578b\u306f\u4e08\u592b\u3067\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u304c\u3057\u3084\u3059\u304f\u3001\u4fee\u7406\u3084\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u306e\u305f\u3081\u306b\u5206\u89e3\u3057\u305f\u308a\u7d44\u307f\u7acb\u3066\u305f\u308a\u3059\u308b\u306e\u304c\u7c21\u5358\u3067\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u91d1\u578b\u306f\u3001\u30ad\u30e3\u30d3\u30c6\u30a3\u3068\u30b3\u30a2\u304c\u6b63\u3057\u304f\u4e26\u3076\u3088\u3046\u306b\u7cbe\u5bc6\u306b\u4f5c\u3089\u308c\u306a\u3051\u308c\u3070\u306a\u3089\u306a\u3044\u3002\u91d1\u578b\u67a0\u306e\u30ad\u30e3\u30d3\u30c6\u30a3\u30fb\u30ec\u30a4\u30a2\u30a6\u30c8\u3082\u3001\u30e1\u30f3\u30c6\u30ca\u30f3\u30b9\u3084\u4fee\u7406\u304c\u3057\u3084\u3059\u3044\u3088\u3046\u306b\u3001\u4e2d\u7a7a\u3084\u30b3\u30a2\u306e\u30a4\u30f3\u30b5\u30fc\u30c8\u306b\u624b\u304c\u5c4a\u304f\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u305d\u3046\u3059\u308b\u3053\u3068\u3067\u3001\u4e0d\u826f\u3092\u6e1b\u3089\u3057\u3001\u3088\u308a\u826f\u3044\u90e8\u54c1\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u308b\u306e\u3067\u3059\u3002<\/p>\n<h3>\u51b7\u5374\u30b7\u30b9\u30c6\u30e0\u8a2d\u8a08<\/h3>\n<p>\u5c04\u51fa\u6210\u5f62\u91d1\u578b\u306e\u8a2d\u8a08\u306b\u304a\u3044\u3066\u3001\u51b7\u5374\u30b7\u30b9\u30c6\u30e0\u306f\u5927\u304d\u306a\u610f\u5473\u3092\u6301\u3064\u3002\u91d1\u578b\u30ad\u30e3\u30d3\u30c6\u30a3\u3068\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u6750\u6599\u306e\u6e29\u5ea6\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002\u51b7\u5374\u304c\u91cd\u8981\u306a\u306e\u306f\u3001\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u3092\u56fa\u5316\u3055\u305b\u3001\u53ce\u7e2e\u3092\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3059\u308b\u306e\u306b\u5f79\u7acb\u3064\u304b\u3089\u3067\u3059\u3002<\/p>\n<p>The cooling system design should ensure that the mold cavity is cooled evenly. The cooling channels should be designed close to the areas that take longer to cool so that they don\u2019t interfere with the gate and runner system. The machinist should also optimize the design to achieve the shortest cycle time possible.<\/p>\n<h3>\u30e9\u30f3\u30ca\u30fc\u3068\u30b2\u30fc\u30c8\u306e\u30c7\u30b6\u30a4\u30f3<\/h3>\n<p>\u30e9\u30f3\u30ca\u30fc\u3068\u30b2\u30fc\u30c8\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u6eb6\u878d\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u304c\u91d1\u578b\u30ad\u30e3\u30d3\u30c6\u30a3\u306b\u3069\u306e\u3088\u3046\u306b\u6d41\u308c\u8fbc\u3080\u304b\u3092\u5236\u5fa1\u3057\u307e\u3059\u3002\u30b2\u30fc\u30c8\u306f\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u304c\u30ad\u30e3\u30d3\u30c6\u30a3\u306b\u5165\u308b\u5834\u6240\u3067\u3042\u308a\u3001\u30e9\u30f3\u30ca\u30fc\u30b7\u30b9\u30c6\u30e0\u306f\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u304c\u30b2\u30fc\u30c8\u306b\u5230\u9054\u3059\u308b\u306e\u3092\u52a9\u3051\u308b\u3002\u30b2\u30fc\u30c8\u3068\u30e9\u30f3\u30ca\u30fc\u30b7\u30b9\u30c6\u30e0\u306e\u8a2d\u8a08\u306f\u3001\u6210\u5f62\u30d7\u30ed\u30bb\u30b9\u304c\u3044\u304b\u306b\u3046\u307e\u304f\u6a5f\u80fd\u3059\u308b\u304b\u3001\u305d\u3057\u3066\u5b8c\u6210\u54c1\u304c\u3044\u304b\u306b\u826f\u3044\u3082\u306e\u306b\u306a\u308b\u304b\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n<p>\u30b2\u30fc\u30c8\u306e\u30b5\u30a4\u30ba\u3001\u4f4d\u7f6e\u3001\u5f62\u72b6\u306f\u3001\u6750\u6599\u306e\u6d41\u308c\u3092\u6700\u9069\u5316\u3057\u3001\u90e8\u54c1\u306e\u5fdc\u529b\u3092\u6700\u5c0f\u5316\u3057\u3001\u90e8\u54c1\u306e\u6b20\u9665\u3092\u56de\u907f\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u30e9\u30f3\u30ca\u30fc\u30b7\u30b9\u30c6\u30e0\u306f\u3001\u5727\u529b\u640d\u5931\u3092\u6700\u5c0f\u9650\u306b\u6291\u3048\u3001\u5747\u4e00\u306a\u6750\u6599\u5206\u5e03\u3092\u78ba\u4fdd\u3057\u3001\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u304c\u84c4\u7a4d\u3057\u3066\u6b20\u9665\u306e\u539f\u56e0\u3068\u306a\u308b\u30c7\u30c3\u30c9\u30b9\u30dd\u30c3\u30c8\u3092\u907f\u3051\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<h3>\u6392\u51fa\u30b7\u30b9\u30c6\u30e0\u306e\u8a2d\u8a08<\/h3>\n<p>The ejector system is what gets the part out of the mold. When you design the ejector system, you have to think about the shape of the part, how many undercuts it has, and how strong it is. You can use ejector pins, sleeves, or hydraulic ejector systems to make sure the part doesn\u2019t get messed up when you take it out.<\/p>\n<p>\u307e\u305f\u3001\u91d1\u578b\u304b\u3089\u90e8\u54c1\u3092\u53d6\u308a\u51fa\u3059\u306e\u306b\u5fc5\u8981\u306a\u529b\u304c\u304b\u304b\u308b\u3088\u3046\u306b\u3001\u30a8\u30b8\u30a7\u30af\u30bf\u30fc\u30b7\u30b9\u30c6\u30e0\u3092\u8a2d\u8a08\u3057\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002\u307e\u305f\u3001\u30a8\u30b8\u30a7\u30af\u30bf\u30fc\u30b7\u30b9\u30c6\u30e0\u304c\u90aa\u9b54\u306b\u306a\u3089\u306a\u3044\u3088\u3046\u306b\u3001\u30b2\u30fc\u30c8\u3084\u30e9\u30f3\u30ca\u30fc\u30b7\u30b9\u30c6\u30e0\u3068\u306e\u4f4d\u7f6e\u95a2\u4fc2\u3082\u8003\u3048\u306a\u3051\u308c\u3070\u306a\u308a\u307e\u305b\u3093\u3002<\/p>\n<h3>\u91d1\u578b\u6750\u6599\u3068\u8868\u9762\u51e6\u7406<\/h3>\n<p>\u91d1\u578b\u306b\u4f7f\u7528\u3059\u308b\u7d20\u6750\u306f\u3001\u91d1\u578b\u306e\u5bff\u547d\u3084\u30d1\u30fc\u30c4\u306e\u898b\u6804\u3048\u306b\u5f71\u97ff\u3057\u307e\u3059\u3002\u591a\u304f\u306e\u71b1\u306b\u8010\u3048\u3089\u308c\u3001\u71b1\u3092\u3088\u304f\u62e1\u6563\u3057\u3001\u78e8\u8017\u3057\u306a\u3044\u7d20\u6750\u304c\u671b\u307e\u308c\u307e\u3059\u3002\u9069\u5207\u306a\u6750\u6599\u3092\u9078\u3076\u3053\u3068\u3067\u3001\u3088\u308a\u65e9\u304f\u90e8\u54c1\u3092\u4f5c\u308a\u3001\u91d1\u578b\u3092\u9577\u6301\u3061\u3055\u305b\u3001\u3088\u308a\u826f\u3044\u90e8\u54c1\u3092\u4f5c\u308b\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<p>\u91d1\u578b\u306f\u3072\u3068\u3064\u3072\u3068\u3064\u9055\u3046\u306e\u3067\u3001\u4f5c\u308b\u3068\u304d\u306b\u306f\u614e\u91cd\u306b\u8003\u3048\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u4f7f\u7528\u3059\u308b\u6750\u6599\u306f\u3001\u6210\u5f62\u54c1\u306b\u8868\u9762\u6b20\u9665\u304c\u51fa\u306a\u3044\u3088\u3046\u306b\u3001\u9069\u5207\u306b\u52a0\u5de5\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30a8\u30f3\u30c9\u30df\u30eb\u304c\u91d1\u578b\u306e\u8868\u9762\u306b\u6b8b\u3057\u305f\u8de1\u3092\u6d88\u3059\u306b\u306f\u3001\u30b5\u30f3\u30c9\u30d6\u30e9\u30b9\u30c8\u3084\u7814\u78e8\u306a\u3069\u306e\u4ed5\u4e0a\u3052\u3092\u884c\u3046\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002\u3069\u308c\u3060\u3051\u4ed5\u4e0a\u3052\u3092\u3059\u308b\u304b\u306b\u3088\u3063\u3066\u3001\u91d1\u578b\u306e\u30b3\u30b9\u30c8\u3084\u88fd\u4f5c\u671f\u9593\u304c\u5909\u308f\u3063\u3066\u304d\u307e\u3059\u3002<\/p>\n<div class=\"claim claim-true\" style=\"background-color: #eff7ef; border-color: #eff7ef; color: #5a8a5a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#16a34a\" stroke-width=\"2\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"\/><\/svg><b>&#8220;Injection mold design affects the cooling time of the molded part.&#8221;<\/b><span class=\"claim-true-or-false\">\u771f<\/span><\/p>\n<p class=\"claim-explanation\">\u9069\u5207\u306a\u91d1\u578b\u8a2d\u8a08\u306f\u3001\u5747\u4e00\u306a\u51b7\u5374\u3092\u4fdd\u8a3c\u3057\u3001\u30b5\u30a4\u30af\u30eb\u30bf\u30a4\u30e0\u3092\u77ed\u7e2e\u3057\u3001\u90e8\u54c1\u306e\u54c1\u8cea\u3092\u5411\u4e0a\u3055\u305b\u307e\u3059\u3002<\/p>\n<\/div>\n<div class=\"claim claim-false\" style=\"background-color: #f7e8e8; border-color: #f7e8e8; color: #8a4a4a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#dc2626\" stroke-width=\"2\"><line x1=\"18\" y1=\"6\" x2=\"6\" y2=\"18\"\/><line x1=\"6\" y1=\"6\" x2=\"18\" y2=\"18\"\/><\/svg><b>&#8220;Injection mold design has no impact on product quality.&#8221;<\/b><span class=\"claim-true-or-false\">\u507d<\/span><\/p>\n<p class=\"claim-explanation\">\u8003\u3048\u629c\u304b\u308c\u305f\u91d1\u578b\u8a2d\u8a08\u306f\u3001\u4e00\u8cab\u3057\u305f\u6750\u6599\u30d5\u30ed\u30fc\u3068\u5747\u4e00\u306a\u51b7\u5374\u3092\u78ba\u4fdd\u3059\u308b\u3053\u3068\u3067\u3001\u90e8\u54c1\u306e\u54c1\u8cea\u306b\u76f4\u63a5\u5f71\u97ff\u3057\u307e\u3059\u3002<\/p>\n<\/div>\n<h2>\u5c04\u51fa\u6210\u5f62\u8a2d\u8a08\u306e\u4e00\u822c\u7684\u306a\u554f\u984c\u3068\u89e3\u6c7a\u7b56\u3068\u306f\uff1f<\/h2>\n<p>\u5c04\u51fa\u6210\u5f62\u306f\u3001\u88fd\u54c1\u306e\u54c1\u8cea\u3084\u751f\u7523\u52b9\u7387\u306b\u5f71\u97ff\u3092\u4e0e\u3048\u308b\u69d8\u3005\u306a\u6f5c\u5728\u7684\u306a\u8a2d\u8a08\u4e0a\u306e\u8ab2\u984c\u3092\u4f34\u3046\u8907\u96d1\u306a\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002<\/p>\n<p>\u5c04\u51fa\u6210\u5f62\u306e\u4e00\u822c\u7684\u306a\u554f\u984c\u3067\u3042\u308b\u53cd\u308a\u3001\u30d2\u30b1\u3001\u30d0\u30ea\u306a\u3069\u306f\u3001\u91d1\u578b\u6e29\u5ea6\u3092\u6700\u9069\u5316\u3057\u3001\u51b7\u5374\u6642\u9593\u3092\u8abf\u6574\u3057\u3001\u9069\u5207\u306a\u30ac\u30b9\u629c\u304d\u3092\u884c\u3046\u3053\u3068\u3067\u7de9\u548c\u3055\u308c\u3001\u88fd\u54c1\u306e\u4e00\u8cab\u6027\u3092\u9ad8\u3081\u3001\u4e0d\u826f\u54c1\u3092\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u307e\u3059\u3002<\/p>\n<h3>\u30d5\u30e9\u30c3\u30b7\u30e5<\/h3>\n<p>\u30d5\u30e9\u30c3\u30b7\u30e5\u3068\u306f\u3001\u91d1\u578b\u306e\u30d1\u30fc\u30c6\u30a3\u30f3\u30b0\u9762\u3084\u30a8\u30b8\u30a7\u30af\u30bf\u30fc\u30d4\u30f3\u306b\u3064\u3044\u305f\u4f59\u5206\u306a\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306e\u3053\u3068\u3002<\/p>\n<p>\u30d5\u30e9\u30c3\u30b7\u30e5\u306e\u539f\u56e0<\/p>\n<p>\u30af\u30e9\u30f3\u30d7\u529b\u304c\u8db3\u308a\u306a\u3044\u3001\u91d1\u578b\u306b\u554f\u984c\u304c\u3042\u308b\u3001\u6210\u5f62\u6761\u4ef6\u304c\u60aa\u3044\u3001\u6392\u6c17\u30b7\u30b9\u30c6\u30e0\u306e\u8a2d\u8a08\u304c\u9593\u9055\u3063\u3066\u3044\u308b\u3002<\/p>\n<p>\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/p>\n<p><p><strong>\u91d1\u578b\u8a2d\u8a08\uff1a<\/strong> \u91d1\u578b\u3092\u30af\u30e9\u30f3\u30d7\u3057\u305f\u3068\u304d\u306b\u3057\u3063\u304b\u308a\u9589\u307e\u308b\u3088\u3046\u306b\u8a2d\u8a08\u3059\u308b\u3002\u6392\u6c17\u53e3\u306e\u5927\u304d\u3055\u3092\u78ba\u8a8d\u3057\u3001\u91d1\u578b\u306e\u8868\u9762\u3092\u304d\u308c\u3044\u306b\u3059\u308b\u3002<\/p>\n<\/p>\n<p><p><strong>\u5c04\u51fa\u6210\u5f62\u6a5f<\/strong> \u5c04\u51fa\u6210\u5f62\u6a5f\u306b\u9069\u5207\u306a\u30c8\u30f3\u6570\u3092\u8a2d\u5b9a\u3059\u308b\u3002<\/p>\n<\/p>\n<p><p><strong>\u6210\u5f62\u5de5\u7a0b\uff1a<\/strong> \u5c04\u51fa\u6642\u9593\u3092\u9577\u304f\u3059\u308b\u3001\u5c04\u51fa\u901f\u5ea6\u3092\u9045\u304f\u3059\u308b\u3001\u30d0\u30ec\u30eb\u6e29\u5ea6\u3068\u30ce\u30ba\u30eb\u6e29\u5ea6\u3092\u4e0b\u3052\u308b\u3001\u5c04\u51fa\u5727\u529b\u3068\u4fdd\u6301\u5727\u529b\u3092\u4e0b\u3052\u308b\u3002<\/p>\n<\/p>\n<h3>\u30b7\u30eb\u30d0\u30fc\u30b9\u30c8\u30ea\u30fc\u30af<\/h3>\n<p>\u30b7\u30eb\u30d0\u30fc\u30b9\u30c8\u30ea\u30fc\u30af\u3068\u306f\u3001\u6c34\u3001\u7a7a\u6c17\u3001\u70ad\u5316\u3057\u305f\u7269\u8cea\u304c\u90e8\u54c1\u306e\u8868\u9762\u306b\u6d41\u308c\u65b9\u5411\u306b\u5206\u5e03\u3057\u3066\u3044\u308b\u72b6\u614b\u3002<\/p>\n<p>\u9280\u7b4b\u306e\u539f\u56e0<\/p>\n<p>\u539f\u6599\u306e\u542b\u6c34\u7387\u304c\u9ad8\u3059\u304e\u308b\u3001\u539f\u6599\u4e2d\u306b\u7a7a\u6c17\u304c\u9589\u3058\u8fbc\u3081\u3089\u308c\u3066\u3044\u308b\u3001\u30dd\u30ea\u30de\u30fc\u306e\u52a3\u5316\uff1a\u539f\u6599\u304c\u6c5a\u67d3\u3055\u308c\u3066\u3044\u308b\u3001\u30d0\u30ec\u30eb\u306e\u6e29\u5ea6\u304c\u9ad8\u3059\u304e\u308b\u3001\u5c04\u51fa\u91cf\u304c\u4e0d\u8db3\u3057\u3066\u3044\u308b\u3002<\/p>\n<p>\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/p>\n<p><p><strong>\u5185\u5bb9<\/strong> \u5c04\u51fa\u6210\u5f62\u306e\u524d\u306b\u3001\u539f\u6599\u4f9b\u7d66\u696d\u8005\u304b\u3089\u63d0\u4f9b\u3055\u308c\u305f\u30c7\u30fc\u30bf\u306b\u57fa\u3065\u3044\u3066\u539f\u6599\u3092\u4e7e\u71e5\u3055\u305b\u308b\u3002<\/p>\n<\/p>\n<p><p><strong>\u91d1\u578b\u8a2d\u8a08\uff1a<\/strong> \u5341\u5206\u306a\u901a\u6c17\u53e3\u304c\u3042\u308b\u3053\u3068\u3092\u78ba\u8a8d\u3059\u308b\u3002<\/p>\n<\/p>\n<p><p><strong>\u6210\u5f62\u5de5\u7a0b\uff1a<\/strong> \u9069\u5207\u306a\u5c04\u51fa\u6210\u5f62\u6a5f\u3068\u91d1\u578b\u3092\u9078\u629e\u3057\u3001\u6750\u6599\u3092\u5909\u66f4\u3059\u308b\u969b\u306b\u30d0\u30ec\u30eb\u304b\u3089\u53e4\u3044\u6750\u6599\u3092\u5b8c\u5168\u306b\u6d17\u6d44\u3057\u3001\u6392\u6c17\u30b7\u30b9\u30c6\u30e0\u3092\u6539\u5584\u3057\u3001\u6eb6\u878d\u6e29\u5ea6\u3001\u5c04\u51fa\u5727\u529b\u307e\u305f\u306f\u5c04\u51fa\u901f\u5ea6\u3092\u4e0b\u3052\u308b\u3002<\/p>\n<\/p>\n<h3>\u30c7\u30f3\u30c8<\/h3>\n<p>\u3078\u3053\u307f\u3068\u306f\u3001\u90e8\u54c1\u306e\u8868\u9762\u304c\u8089\u539a\u306e\u90e8\u5206\u3067\u51f9\u3093\u3067\u3044\u308b\u3053\u3068\u3002<\/p>\n<p>\u30c7\u30f3\u30c8\u5f62\u6210\u306e\u539f\u56e0<\/p>\n<p>\u5c04\u51fa\u5727\u529b\u307e\u305f\u306f\u4fdd\u5727\u304c\u4f4e\u3059\u304e\u308b\u3001\u4fdd\u5727\u6642\u9593\u307e\u305f\u306f\u51b7\u5374\u6642\u9593\u304c\u77ed\u3059\u304e\u308b\u3001\u6eb6\u878d\u6e29\u5ea6\u307e\u305f\u306f\u91d1\u578b\u6e29\u5ea6\u304c\u9ad8\u3059\u304e\u308b\u3001\u90e8\u54c1\u306e\u69cb\u9020\u8a2d\u8a08\u304c\u4e0d\u9069\u5207\u3067\u3042\u308b\u3002<\/p>\n<p>\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/p>\n<p><p><strong>\u30c7\u30b6\u30a4\u30f3\u69cb\u9020\uff1a<\/strong> \u3078\u3053\u307f\u3084\u3059\u3044\u9762\u3092\u6ce2\u578b\u306b\u3057\u3001\u90e8\u54c1\u306e\u539a\u8089\u30b5\u30a4\u30ba\u3092\u5c0f\u3055\u304f\u3057\u3001\u8089\u539a\u5bfe\u76f4\u5f84\u6bd4\u3092\u6700\u5c0f\u306b\u3057\u3001\u96a3\u63a5\u8089\u539a\u6bd4\u30921.5~2\u306b\u30b3\u30f3\u30c8\u30ed\u30fc\u30eb\u3057\u3001\u30b9\u30e0\u30fc\u30ba\u306a\u79fb\u884c\u3092\u5fc3\u304c\u3051\u3001\u88dc\u5f37\u30ea\u30d6\u3001\u76bf\u7a74\u3001\u30b3\u30fc\u30ca\u30fc\u30ea\u30d6\u306e\u539a\u3055\u3092\u518d\u8a2d\u8a08\u3057\u3001\u305d\u306e\u539a\u3055\u306f\u4e00\u822c\u7684\u306b\u57fa\u672c\u8089\u539a\u306e40~80%\u306b\u3059\u308b\u3053\u3068\u3092\u63a8\u5968\u3059\u308b\u3002<\/p>\n<\/p>\n<p>For weld defects, review <a href=\"https:\/\/zetarmold.com\/ja\/%e5%b0%84%e5%87%ba%e6%88%90%e5%bd%a2%e9%83%a8%e5%93%81%e3%81%ae%e3%82%a6%e3%82%a7%e3%83%ab%e3%83%89%e3%83%9e%e3%83%bc%e3%82%af%e3%81%ae%e5%8e%9f%e5%9b%a0\/\">causes and solutions of weld marks<\/a>, then adjust injection pressure, holding pressure, gate size, or gate position based on flow evidence.<\/p>\n<h3>\u6eb6\u63a5\u30de\u30fc\u30af<\/h3>\n<p>\u30a6\u30a7\u30eb\u30c9\u30de\u30fc\u30af\u3068\u306f\u30012\u3064\u306e\u6750\u6599\u306e\u6d41\u308c\u304c\u51fa\u4f1a\u3063\u3066\u6eb6\u63a5\u3055\u308c\u3001\u8868\u9762\u306b\u6b20\u9665\u304c\u751f\u3058\u308b\u3053\u3068\u3002<\/p>\n<p>\u30a6\u30a7\u30eb\u30c9\u30fb\u30de\u30fc\u30af\u306e\u539f\u56e0<\/p>\n<p>\u90e8\u54c1\u306b\u7a74\u3001\u30a4\u30f3\u30b5\u30fc\u30c8\u3001\u30de\u30eb\u30c1\u30b2\u30fc\u30c8\u5c04\u51fa\u6210\u5f62\u30e2\u30fc\u30c9\u304c\u3042\u308b\u5834\u5408\u3001\u307e\u305f\u306f\u90e8\u54c1\u306e\u8089\u539a\u304c\u4e0d\u5747\u4e00\u306a\u5834\u5408\u3001\u30a6\u30a7\u30eb\u30c9\u30de\u30fc\u30af\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n<p>\u30bd\u30ea\u30e5\u30fc\u30b7\u30e7\u30f3<\/p>\n<p><p><strong>\u7d20\u6750\uff1a<\/strong>\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u306e\u6eb6\u878d\u7269\u306e\u6d41\u308c\u3092\u826f\u304f\u3059\u308b\u3002<\/p>\n<\/p>\n<p><p><strong>\u88fd\u54c1\u30c7\u30b6\u30a4\u30f3\uff1a<\/strong> \u88fd\u54c1\u306e\u4f5c\u308a\u65b9\u3084\u58c1\u306e\u539a\u3055\u3092\u5909\u3048\u308b\u3002<\/p>\n<\/p>\n<p><p><strong>\u91d1\u578b\u8a2d\u8a08\uff1a<\/strong> \u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u304c\u91d1\u578b\u306b\u5165\u308b\u5834\u6240\u3092\u79fb\u52d5\u3057\u3001\u7a7a\u6c17\u304c\u629c\u3051\u308b\u5834\u6240\u3092\u8ffd\u52a0\u3059\u308b\u3002<\/p>\n<\/p>\n<p><p><strong>\u30d7\u30ed\u30bb\u30b9\u6761\u4ef6\uff1a<\/strong> \u30b9\u30b3\u30fc\u30c1\u30de\u30fc\u30af\u3068\u306f\u3001\u91d1\u578b\u5185\u306e\u7a7a\u6c17\u304c\u5341\u5206\u306b\u629c\u3051\u304d\u3089\u305a\u3001\u6d41\u308c\u304c\u7d42\u308f\u3063\u305f\u3068\u3053\u308d\u3067\u30d7\u30e9\u30b9\u30c1\u30c3\u30af\u304c\u7126\u3052\u3066\u3057\u307e\u3046\u3053\u3068\u3060\u3002<\/p>\n<\/p>\n<h3>\u53cd\u308a\u3068\u5909\u5f62<\/h3>\n<p>\u53cd\u308a\u5909\u5f62\u3068\u3044\u3046\u306e\u306f\u3001\u5c04\u51fa\u6210\u5f62\u3055\u308c\u305f\u3082\u306e\u306e\u5f62\u304c\u3081\u3061\u3083\u304f\u3061\u3083\u306b\u306a\u308a\u3001\u4e0d\u63c3\u3044\u306b\u53cd\u3063\u3066\u3057\u307e\u3046\u3053\u3068\u3060\u3002\u5c04\u51fa\u6210\u5f62\u3067\u3082\u306e\u3092\u4f5c\u308b\u3068\u304d\u306b\u3046\u307e\u304f\u3044\u304b\u306a\u3044\u3053\u3068\u306e\u3072\u3068\u3064\u3060\u3002<\/p>\n<div class=\"claim claim-true\" style=\"background-color: #eff7ef; border-color: #eff7ef; color: #5a8a5a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#16a34a\" stroke-width=\"2\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"\/><\/svg><b>&#8220;Warping is a common issue in injection molding.&#8221;<\/b><span class=\"claim-true-or-false\">\u771f<\/span><\/p>\n<p class=\"claim-explanation\">Warping occurs due to uneven cooling, leading to parts becoming distorted. It&#8217;s often addressed by adjusting cooling times and mold temperatures.<\/p>\n<\/div>\n<div class=\"claim claim-false\" style=\"background-color: #f7e8e8; border-color: #f7e8e8; color: #8a4a4a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#dc2626\" stroke-width=\"2\"><line x1=\"18\" y1=\"6\" x2=\"6\" y2=\"18\"\/><line x1=\"6\" y1=\"6\" x2=\"18\" y2=\"18\"\/><\/svg><b>&#8220;Sink marks can only be fixed by redesigning the mold.&#8221;<\/b><span class=\"claim-true-or-false\">\u507d<\/span><\/p>\n<p class=\"claim-explanation\">\u30b7\u30f3\u30af\u30de\u30fc\u30af\u306f\u3001\u91d1\u578b\u8a2d\u8a08\u306e\u8abf\u6574\u3068\u4e26\u884c\u3057\u3066\u3001\u5145\u586b\u5727\u529b\u3084\u51b7\u5374\u6642\u9593\u306a\u3069\u306e\u30d7\u30ed\u30bb\u30b9\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u8abf\u6574\u3059\u308b\u3053\u3068\u306b\u3088\u3063\u3066\u3082\u6e1b\u3089\u3059\u3053\u3068\u304c\u3067\u304d\u308b\u3002<\/p>\n<\/div>\n<h2>What should engineers do before releasing the design?<\/h2>\n<p>A release-ready design is DFM-approved after checking walls, draft, gates, parting line, cooling, ejection, shrinkage, and inspection.<\/p>\n<p>This will give you a detailed understanding of what you need and how to complete the process. The injection molding design rules discussed in this article will help you optimize the process, ensure cost-effective production and reduce cycle times. See our <a href=\"https:\/\/zetarmold.com\/ja\/injection-mold-complete-guide\/\">Injection Mold Complete Guide<\/a> for a comprehensive overview.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-molding-defects-examples.webp\" alt=\"Common plastic molding defects visual guide\" class=\"wp-image-51583 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-molding-defects-examples.webp 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-molding-defects-examples-300x171.webp 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-molding-defects-examples-768x439.webp 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-molding-defects-examples-18x10.webp 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2025\/11\/plastic-molding-defects-examples-600x343.webp 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Common molding defects<\/figcaption><\/figure>\n<h2>\u3088\u304f\u3042\u308b\u8cea\u554f<\/h2>\n<h3>\u5c04\u51fa\u6210\u5f62\u8a2d\u8a08\u306b\u304a\u3044\u3066\u6700\u3082\u91cd\u8981\u306a\u30eb\u30fc\u30eb\u306f\u4f55\u3067\u3059\u304b\uff1f<\/h3>\n<p>The most important rule is to keep the part easy to fill, cool, eject, and inspect without adding unnecessary tooling complexity. Uniform wall thickness, practical draft angles, clear parting-line decisions, and realistic gate placement usually matter more than adding many small features. A design that looks acceptable in CAD can still fail in production if it creates trapped air, uneven cooling, high ejection force, or cosmetic defects. Before release, the design should be reviewed with both product function and mold manufacturing constraints in mind.<\/p>\n<h3>\u5c04\u51fa\u6210\u5f62\u90e8\u54c1\u306b\u306f\u3069\u308c\u304f\u3089\u3044\u306e\u629c\u304d\u52fe\u914d\u3092\u4f7f\u7528\u3059\u3079\u304d\u3067\u3059\u304b\uff1f<\/h3>\n<p>A practical starting point is to use at least 1 to 2 degrees of draft on most vertical faces, then increase the angle for deeper walls, textured surfaces, or materials that shrink tightly onto the core. The exact value depends on part depth, surface finish, resin shrinkage, and ejection direction. Draft should be added early because late changes can move parting lines, alter shutoffs, and affect appearance. If a surface must remain straight, the toolmaker should review whether polishing, ejector layout, or material choice can reduce release risk.<\/p>\n<h3>\u306a\u305c\u58c1\u306e\u539a\u3055\u304c\u305d\u308c\u307b\u3069\u91cd\u8981\u306a\u306e\u3067\u3057\u3087\u3046\u304b\uff1f<\/h3>\n<p>Wall thickness controls filling pressure, cooling time, shrinkage, sink marks, warpage, and material consumption. Thick areas cool slowly and can create sink or internal voids, while thin areas may short-shot or show weak weld lines if the melt freezes too quickly. The safest design usually keeps walls as uniform as possible and uses ribs, bosses, or gradual transitions instead of sudden thick sections. When thickness must change for strength, the transition should be smooth enough for resin flow and predictable cooling.<\/p>\n<h3>\u30c7\u30b6\u30a4\u30f3\u306f\u3044\u3064\u3001\u3088\u308a\u539a\u3044\u58c1\u306e\u4ee3\u308f\u308a\u306b\u30ea\u30d6\u3092\u4f7f\u7528\u3059\u3079\u304d\u3067\u3059\u304b\uff1f<\/h3>\n<p>Ribs are useful when the part needs stiffness but a thicker wall would create sink marks, longer cooling time, or excess material cost. A rib should normally be thinner than the adjacent wall, include draft, and connect with enough radius to avoid stress concentration. Ribs also need spacing so steel can be manufactured and polished properly. If a feature needs both strength and a cosmetic surface, rib placement should be reviewed against gate location, flow direction, and potential read-through marks on the show side.<\/p>\n<h3>\u8cb7\u3044\u624b\u306f\u91d1\u578b\u88fd\u4f5c\u958b\u59cb\u524d\u306b\u30b5\u30d7\u30e9\u30a4\u30e4\u30fc\u306b\u4f55\u3092\u5c0b\u306d\u308b\u3079\u304d\u3067\u3059\u304b\uff1f<\/h3>\n<p>Buyers should ask whether the supplier has reviewed wall thickness, draft, parting line, gate location, ejector placement, cooling layout, material shrinkage, tolerance stack-up, and cosmetic expectations before steel is cut. They should also ask which risks require DFM changes and which can be handled during sampling. A clear review before tooling is cheaper than correcting a finished mold after defects appear. For production parts, the supplier should connect design decisions with cycle time, inspection method, maintenance access, and expected tool life.<\/p>\n<p>Need a Quote for Your Injection Molding Project?<\/p>\n<p>Get competitive pricing, DFM feedback, and production timeline from ZetarMold\u2019s engineering team.<\/p>\n<p>Request a Free Quote \u2192 Use our <a href=\"https:\/\/zetarmold.com\/ja\/injection-molding-complete-guide\/\">\u5c04\u51fa\u6210\u5f62\u30d7\u30ed\u30bb\u30b9\u30ac\u30a4\u30c9<\/a> for process context and our <a href=\"https:\/\/zetarmold.com\/ja\/injection-molding-supplier-sourcing-guide\/\">injection molding supplier sourcing guide<\/a> before comparing pricing.<\/p>\n<hr style=\"margin:2em 0;border:none;border-top:1px solid #e0e0e0;\" \/>\n<ol class=\"footnotes\">\n<li id=\"fn:1\">\n<p><strong>wall thickness:<\/strong> \u8089\u539a\u306f\u5145\u586b\u5727\u529b\u3001\u51b7\u5374\u6642\u9593\u3001\u53ce\u7e2e\u3001\u30b7\u30f3\u30af\u30de\u30fc\u30af\u3001\u304a\u3088\u3073\u88fd\u54c1\u306e\u525b\u6027\u3092\u5236\u5fa1\u3059\u308b\u30b3\u30a2\u3068\u306a\u308b\u8a2d\u8a08\u5bf8\u6cd5\u3067\u3059\u3002 <a href=\"#fnref1:1\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:2\">\n<p><strong>draft angle:<\/strong> \u629c\u304d\u52fe\u914d\u3068\u306f\u3001\u6210\u5f62\u54c1\u304c\u5de5\u5177\u304b\u3089\u64e6\u308c\u3084\u7c98\u7740\u3092\u8d77\u3053\u3055\u305a\u306b\u96e2\u8131\u3067\u304d\u308b\u3088\u3046\u306b\u5782\u76f4\u9762\u306b\u8ffd\u52a0\u3055\u308c\u308b\u30c6\u30fc\u30d1\u30fc\u306e\u3053\u3068\u3067\u3059\u3002 <a href=\"#fnref1:2\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:3\">\n<p><strong>parting line:<\/strong> \u30d1\u30fc\u30c6\u30a3\u30f3\u30b0\u30e9\u30a4\u30f3\u3068\u306f\u30012\u3064\u306e\u91d1\u578b\u30cf\u30fc\u30d5\u304c\u5408\u308f\u3055\u308b\u76ee\u306b\u898b\u3048\u308b\u5883\u754c\u7dda\u3067\u3042\u308a\u3001\u30d5\u30e9\u30c3\u30b7\u30e5\u3001\u30df\u30b9\u30de\u30c3\u30c1\u3001\u307e\u305f\u306f\u5916\u89b3\u4e0a\u306e\u554f\u984c\u304c\u767a\u751f\u3059\u308b\u53ef\u80fd\u6027\u306e\u3042\u308b\u7b87\u6240\u306e\u3053\u3068\u3067\u3059\u3002 <a href=\"#fnref1:3\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<\/ol>\n<p><script type=\"application\/ld+json\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"FAQPage\",\n    \"mainEntity\": [\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the most important rule in injection molding design?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The most important rule is to keep the part easy to fill, cool, eject, and inspect without adding unnecessary tooling complexity. 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