{"id":52367,"date":"2026-04-02T20:00:00","date_gmt":"2026-04-02T12:00:00","guid":{"rendered":"https:\/\/zetarmold.com\/?p=52367"},"modified":"2026-04-14T16:08:37","modified_gmt":"2026-04-14T08:08:37","slug":"wat-is-eerste-artikel-inspectie-bij-spuitgieten","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/nl\/wat-is-eerste-artikel-inspectie-bij-spuitgieten\/","title":{"rendered":"What Is First Article Inspection in Injection Molding and How Do You Use It?"},"content":{"rendered":"<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>Belangrijkste opmerkingen<\/strong><\/p>\n<p>  4\u201312 weken (eerste deel) <a href=\"https:\/\/zetarmold.com\/nl\/injection-mold-complete-guide\/\">Injection Mold Complete Guide<\/a>.<\/p>\n<ul>\n<li>Eerste Artikel Inspectie (FAI) verifieert dat de eerste spuitgietonderdelen van een nieuwe matrijs voldoen aan alle dimensionale, materiaal- en functionele specificaties v\u00f3\u00f3r de massaproductie.<\/li>\n<li>Een volledige FAI controleert 100% van de kenmerken op de eerste 3\u20135 onderdelen, inclusief wanddikte, ingangafmetingen, kritieke toleranties (typisch \u00b10,05\u20130,1 mm voor precisieonderdelen) en materiaalcertificering.<\/li>\n<li>FAI is verplicht voor luchtvaart- (AS9102), auto- (PPAP) en medische hulpmiddelen (ISO 13485) toeleveringsketens, en wordt sterk aanbevolen voor elke productierun van meer dan 5.000 onderdelen.<\/li>\n<li>Het overslaan van FAI brengt het risico met zich mee dat defecten worden ontdekt nadat er meer dan 10.000 onderdelen zijn gespoten, wat een inspectie van $500 verandert in een afvalprobleem van $50.000+.<\/li>\n<li>Bij ZetarMold worden FAI-resultaten gedocumenteerd in een gestructureerd rapport en goedgekeurd door de klant voordat de matrijs wordt vrijgegeven voor productie.<\/li>\n<\/ul>\n<\/div>\n<h2>Wat is First Article Inspection bij Spuitgieten?<\/h2>\n<p><sup id=\"fnref1:1\"><a href=\"#fn:1\" class=\"footnote-ref\">1<\/a><\/sup> (FAI) is een gestructureerd, gedocumenteerd verificatieproces dat bevestigt dat de eerste onderdelen uit een nieuwe spuitgietmatrijs \u2013 of een significant gewijzigde matrijs \u2013 voldoen aan elke afmeting, tolerantie, materiaal- en functionele vereiste op de technische tekening. FAI is geen algemene kwaliteitscontrole; het is een systematische, kenmerk-voor-kenmerk meting van 100% van alle tekeningkenmerken op een minimale steekproef van 3\u20135 eerste-serieonderdelen. Bij ZetarMold behandelen we FAI als de laatste poort tussen matrijskwalificatie en serieproductie.<\/p>\n<p>Het proces is ontstaan in de luchtvaartproductie onder <sup id=\"fnref1:2\"><a href=\"#fn:2\" class=\"footnote-ref\">2<\/a><\/sup>, maar tegenwoordig is het standaard in de auto-industrie (<sup id=\"fnref1:4\"><a href=\"#fn:4\" class=\"footnote-ref\">4<\/a><\/sup> Niveau 3), medische hulpmiddelen (ISO 13485) en precisie-elektronica-industrie\u00ebn. Van elke fabrikant die kunststofcomponenten levert aan gereguleerde toeleveringsketens wordt verwacht dat deze een gedocumenteerd First Article Inspection Report (FAIR) opstelt. Zonder dit hebben klanten geen objectief bewijs dat uw matrijs daadwerkelijk maakt wat de tekening specificeert.<\/p>\n<h2>Waarom is FAI belangrijk voor spuitgietonderdelen?<\/h2>\n<p>Spuitgieten introduceert verschillende bronnen van dimensionale variatie die alleen verschijnen wanneer staal daadwerkelijk kunststof verwerkt: holtedrukverdeling, koeluniformiteit, bevriezingstijd van de poort en materiaalkrimp. Nominale krimpwaarden gepubliceerd in materiaalgegevensbladen zijn gemiddelden, geen garanties. Een onderdeel ontworpen voor ABS met 0,5% nominale krimp kan daadwerkelijk 0,45\u20130,65% krimpen, afhankelijk van wanddikte, smelttemperatuur en pakdruk. FAI detecteert deze afwijkingen voordat ze een productieprobleem worden.<\/p>\n<p>In our factory, we have seen cases where a mold passed T1 (first trial) visual inspection with flying colors, but FAI dimensional measurement revealed that a critical snap-fit arm was 0.15 mm undersized\u2014within the mold&#8217;s steel tolerance, but outside the assembly fit requirement. Catching this at FAI cost two days of mold adjustment. Catching it after 50,000 parts would have been catastrophic.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/02\/800x457_engineer-inspecting-injection-mold.webp\" alt=\"Engineer inspecting injection mold dimensions during FAI\" style=\"max-width:100%;height:auto;\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Ingenieur meet matrijsafmetingen<\/figcaption><\/figure>\n<h2>Wat omvat een First Article Inspection Report?<\/h2>\n<p>Een volledig First Article Inspection Report (FAIR) documenteert elke eigenschap die op de onderdeeltekening is aangegeven. De structuur volgt AS9102 Sectie 4, zelfs voor niet-luchtvaarttoepassingen, omdat dit het meest rigoureuze industri\u00eble raamwerk is dat beschikbaar is. Het rapport moet worden ondertekend door een gekwalificeerde kwaliteitsingenieur en worden gearchiveerd voor de levensduur van het onderdeelprogramma.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:1.5em 0;\">\n<caption style=\"font-weight:bold;margin-bottom:0.5em;\">Standaard FAI-rapportsecties en Belangrijke Inhoud<\/caption>\n<thead>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">FAIR Sectie<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Wat wordt gedocumenteerd<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Typisch Acceptatiecriterium<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Part Number &#038; Revision<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Tekeningnummer, revisieniveau, ingangsdatum<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">100% overeenkomst met door klant verstrekte tekening<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Materiaalcertificering<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Hars lotnummer, leveranciers CoC, materiaaltestgegevens<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Voldoet aan UL, ASTM of klantmateriaalspecificatie<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Dimensionele Ballonering<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Elke afmeting op de tekening krijgt een ballonnummer toegewezen<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Alle kenmerken ge\u00efnspecteerd; 0 openstaande afwijkingen<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Kritieke Kenmerkmeting<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">CMM of schuifmaatgegevens voor alle kritieke afmetingen<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Cpk \u2265 1,33 voor kritieke kenmerken<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Visuele \/ Cosmetische Inspectie<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Oppervlakteafwerking, kleur, laslijnen, zinkmarkeringen<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Voldoet aan AQL 0,65 Level II steekproefplan<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Functionele Test<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Klikverbinding, schroefdraadpassing, montagepascontrole<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">100% geslaagd op alle eerste-artikelmonsters<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Procesparameterregistratie<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Injectiesnelheid, smelttemperatuur, koeltijd, druk tijdens het napersen<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Parameters gearchiveerd voor toekomstige referentie<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Goedkeuring door klant<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">FAIR goedgekeurd door kwaliteitsvertegenwoordiger van de klant<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Schriftelijke goedkeuring voor productievrijgave<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>The dimensional ballooning section is the most labor-intensive part of a FAIR. Every tolerance callout on the drawing\u2014linear dimensions, radii, hole diameters, <sup id=\"fnref1:5\"><a href=\"#fn:5\" class=\"footnote-ref\">5<\/a><\/sup> symbols\u2014receives a unique balloon number. Each balloon is then measured on each sample part, and the actual value is recorded alongside the nominal and tolerance. Our quality team at ZetarMold typically records 60\u2013150 balloon entries per part for a medium-complexity component.<\/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;FAI requires measuring 100% of drawing features, not just critical dimensions.&#8221;<\/b><span class=\"claim-true-or-false\">Echt<\/span><\/p>\n<p class=\"claim-explanation\">A full FAI per AS9102 and PPAP standards requires that every dimension, tolerance, and specification on the drawing be inspected and documented. Selective inspection\u2014checking only critical-to-function features\u2014does not constitute a valid FAI. In practice, this means balloon numbering every callout on the drawing and recording actual measured values for each one.<\/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;A T1 trial run approval is equivalent to a First Article Inspection.&#8221;<\/b><span class=\"claim-true-or-false\">Vals<\/span><\/p>\n<p class=\"claim-explanation\">T1 approval and FAI serve different purposes. T1 (first steel trial) typically confirms that the mold opens, fills, and ejects without mechanical problems, and may include basic visual checks. FAI is a formal, documented, feature-by-feature dimensional and material verification. A mold can pass T1 but fail FAI due to dimensional deviations that are not visible to the eye\u2014such as a wall thickness 0.12 mm outside tolerance.<\/p>\n<\/div>\n<h2>Hoe wordt een Eerste Artikel Inspectie stap voor stap uitgevoerd?<\/h2>\n<p>FAI follows a defined sequence that ensures all verification activities are completed before any data is recorded. Shortcuts\u2014such as measuring parts before they have fully cooled to ambient temperature, or measuring only one of the three sample parts\u2014invalidate the inspection and typically result in customer rejection of the FAIR.<\/p>\n<p>Step 1 is part conditioning. Injection-molded parts must be conditioned at 23\u00b0C \u00b12\u00b0C for a minimum of 4 hours (per ASTM D618) before measurement. Parts measured immediately after molding will read differently due to residual heat and stress relaxation. Step 2 is drawing review: the quality engineer balloons every dimension and assigns a unique ID. Step 3 is CMM programming or fixture setup for measurement. Step 4 is measurement of all three to five sample parts, with actual values recorded. Step 5 is material and process record archiving.<\/p>\n<p>Step 6 is Cpk analysis for critical features. For any dimension with a critical-to-function tolerance, we calculate the process capability index (Cpk). The accepted minimum is Cpk \u2265 1.33, which corresponds to a process running at least 4 sigma from its nearest tolerance limit. Features below this threshold require mold rework before FAI can be approved. Step 7 is customer submission and sign-off. The complete FAIR package is transmitted to the customer; written approval is required before production begins.<\/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;Parts must be conditioned at 23\u00b0C for at least 4 hours before FAI measurement.&#8221;<\/b><span class=\"claim-true-or-false\">Echt<\/span><\/p>\n<p class=\"claim-explanation\">ASTM D618 specifies that thermoplastic parts must be conditioned at 23\u00b0C \u00b12\u00b0C and 50% \u00b15% relative humidity for a minimum of 4 hours before dimensional measurement. This is critical because injection-molded parts continue to shrink and warp after ejection as residual stresses relax and absorbed heat dissipates. Measuring hot parts produces systematically larger readings that do not represent the part&#8217;s final dimensions.<\/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;FAI only needs to be performed once for the life of a mold.&#8221;<\/b><span class=\"claim-true-or-false\">Vals<\/span><\/p>\n<p class=\"claim-explanation\">FAI must be repeated whenever a defined change occurs: mold steel modification, new material lot from a different supplier, change in molding facility or machine, design revision, or production interruption exceeding a customer-defined period (typically 12 months). The logic is that any of these changes can alter part dimensions or properties. A single FAI approval does not cover parts made under materially different conditions.<\/p>\n<\/div>\n<h2>Welke afmetingen zijn het meest kritiek om te meten bij spuitgietonderdelen?<\/h2>\n<p><a href=\"https:\/\/zetarmold.com\/nl\/kunststof-spuitgietproces-4\/\">Spuitgietproces<\/a> variables directly affect four categories of dimensions that are most likely to deviate from nominal. Understanding which features are at highest risk helps quality engineers prioritize CMM time and flag potential issues during <a href=\"https:\/\/zetarmold.com\/nl\/dfm-injectie-van-kunststof-onderdelen\/\">DFM<\/a> review.<\/p>\n<p>Wall thickness is the single most critical dimension because it controls both structural performance and cooling uniformity. Target tolerance for uniform wall sections is typically \u00b10.1 mm for non-critical features and \u00b10.05 mm for critical-to-fit interfaces. Gate location and dimensions affect fill pattern, weld line position, and surface cosmetics. Boss diameter and depth control thread engagement and press-fit retention. Snap-fit arm length and tip geometry determine assembly force and retention strength\u2014even a 0.1 mm deviation in snap-fit tip height can increase insertion force by 30\u201350%.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img decoding=\"async\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/02\/800x457_cqe-quality-management-certificate.webp\" alt=\"Quality management certificate and inspection documentation for injection molded parts\" style=\"max-width:100%;height:auto;\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Quality certification for molded parts<\/figcaption><\/figure>\n<p>Flatness and warpage are especially problematic for large, thin-walled parts. A 200 mm \u00d7 150 mm panel with 2 mm nominal wall thickness can warp by 0.5\u20132.0 mm if cooling is non-uniform or if packing pressure is not optimized. FAI flatness measurements are taken on a granite surface plate using dial indicators at a defined grid of points\u2014typically every 25 mm. <a href=\"https:\/\/zetarmold.com\/nl\/analyse-van-de-matrijsstroming\/\">Analyse van de vormstroom<\/a> simulation can predict warpage before steel is cut, but FAI is the ground truth.<\/p>\n<h2>Welke gereedschappen worden gebruikt om onderdelen te meten tijdens FAI?<\/h2>\n<p>De <sup id=\"fnref1:3\"><a href=\"#fn:3\" class=\"footnote-ref\">3<\/a><\/sup> (CMM) is the gold standard for FAI dimensional verification. A CMM probes the part surface at programmed points and reports actual coordinates versus nominal CAD data. Modern CMMs achieve measurement uncertainty of \u00b10.002 mm under controlled conditions. For production FAI, the CMM program is written from the 3D CAD model and then validated against the ballooned drawing to confirm every feature is captured.<\/p>\n<p>Not all features require CMM. Thread gauges (go\/no-go) verify thread engagement more quickly than CMM for standard thread forms. Vision systems measure 2D profile features\u2014hole diameters, edge radii, slot widths\u2014with sub-micron accuracy at high throughput. Digital calipers and micrometers are acceptable for non-critical features (tolerance \u2265 \u00b10.1 mm) when calibrated to NIST-traceable standards. Optical comparators project part silhouettes for rapid profile checking on complex 2D contours.<\/p>\n<p>In our factory, we operate a Zeiss Contura CMM with a 0.001 mm resolution probe for all critical-feature FAI measurements. For <a href=\"https:\/\/zetarmold.com\/nl\/spuitgieten-van-kleine-volumes\/\">spuitgieten van kleine aantallen<\/a> programs where a full CMM program may not be cost-justified, we use a combination of calibrated hand tools and a structured light 3D scanner to capture full-surface deviation maps against the CAD nominal.<\/p>\n<h2>Hoe lang duurt een Eerste Artikel Inspectie?<\/h2>\n<p>FAI duration depends on part complexity (number of drawing features), available measurement equipment, and customer reporting requirements. A simple two-cavity mold with 25\u201340 drawing balloons typically takes 1\u20132 days from part conditioning to completed FAIR submission. A complex 8-cavity medical device component with 120+ balloons, GD&#038;T callouts, and material traceability requirements may take 5\u20137 working days.<\/p>\n<p>The biggest time drivers are CMM program development (4\u201316 hours for a new program) and customer-required reports with statistical analysis (Cpk calculations for 20\u201330 critical features). Customers who provide CAD models and a pre-ballooned drawing dramatically reduce FAI turnaround time. Those who only supply a 2D PDF drawing require our team to model the nominal geometry before CMM programming can begin.<\/p>\n<p>At ZetarMold, we build FAI time into every project schedule at the mold qualification stage. Customers who treat FAI as an afterthought\u2014requesting it only after they expected parts to ship\u2014create delays. Our standard lead time commitment: T1 trial parts within 4 weeks of mold approval; FAI report within 5 business days of T1 parts being conditioned; production release within 3 business days of customer FAIR approval.<\/p>\n<h2>Wat Gebeurt Er Als een Onderdeel de First Article Inspection Niet Haalt?<\/h2>\n<p>FAI failure means that one or more measured features fall outside their drawing tolerance on the first-article sample parts. The response depends on the nature and magnitude of the deviation. Minor deviations (within 20% of the tolerance band outside nominal) may be addressed through process adjustment\u2014changing pack pressure, cooling time, or melt temperature\u2014without touching the mold steel. These are documented as process NCRs and re-measured on a fresh set of conditioned parts.<\/p>\n<p>Dimensional deviations that exceed process adjustment capability require mold steel modification. Steel removal (cutting more material) is straightforward; steel addition (welding or insert replacement) is more expensive and time-consuming. In either case, a partial re-FAI is performed: only the affected features and any dimensions that could have been influenced by the modification need to be re-measured. A full re-FAI is required if the modification involved significant steel removal affecting multiple cavity regions.<\/p>\n<p>Some customers allow a Deviation Approval (also called a concession or waiver) for features that are marginally out of tolerance but demonstrably do not affect function or assembly. This requires engineering sign-off from the customer and a defined review timeline. Deviations are never permanent; the mold must be corrected before the next tool change or at the next scheduled maintenance window. In our factory, we track all open deviations in our ERP system and flag them for action at each mold service interval.<\/p>\n<h2>Veelgestelde Vragen over First Article Inspection bij Spuitgieten<\/h2>\n<h3>Is FAI vereist voor elke nieuwe spuitgietmatrijs, of alleen voor gereguleerde industrie\u00ebn?<\/h3>\n<p>FAI is mandatory for aerospace (AS9102), automotive (PPAP), and medical device (ISO 13485 \/ FDA 21 CFR Part 820) supply chains. However, any manufacturer running injection molds for precision assemblies should perform FAI regardless of industry, because the cost of discovering dimensional non-conformance at production scale vastly exceeds the cost of a structured first-article inspection. At ZetarMold, we recommend FAI for any production program with tolerances tighter than \u00b10.15 mm or any assembly with critical-to-function fit interfaces, irrespective of the customer&#8217;s industry sector.<\/p>\n<h3>Hoeveel onderdelen worden doorgaans ge\u00efnspecteerd tijdens FAI?<\/h3>\n<p>The standard minimum is 3\u20135 parts from the actual production mold, running under production-intent process parameters. For multi-cavity molds, parts should be taken from every cavity\u2014not just one representative part. If you have a 4-cavity mold, a proper FAI measures parts from all four cavities and records cavity-specific data. Cavity-to-cavity variation is a common failure mode in injection molding; FAI is the only way to confirm that all cavities are within tolerance simultaneously. Some customers specify larger sample sizes (10\u201330 parts) for statistical process capability calculations.<\/p>\n<h3>Wat is het verschil tussen FAI en PPAP?<\/h3>\n<p>FAI (First Article Inspection) is a measurement and verification activity\u2014it confirms that a specific part from a specific mold meets its drawing. PPAP (Production Part Approval Process) is a broader submission package required by automotive customers that includes FAI data as one of its 18 required elements, alongside design records, process flow diagrams, control plans, MSA studies, and capacity analysis. PPAP Level 3 (the most common) requires all 18 elements to be submitted to and approved by the customer. FAI is necessary but not sufficient for PPAP; PPAP wraps FAI inside a larger quality management framework.<\/p>\n<h3>Kan FAI worden uitgevoerd door de molder, of moet het door een onafhankelijk laboratorium worden gedaan?<\/h3>\n<p>In most commercial and industrial applications, the molder&#8217;s own quality team performs the FAI using calibrated, NIST-traceable measurement equipment. The customer reviews and approves the FAIR. For aerospace and defense applications, some customers require that FAI be witnessed by their own quality representative or a third-party inspection agency. Medical device applications under FDA oversight may require measurement system analysis (MSA \/ Gage R&#038;R studies) to demonstrate that the molder&#8217;s measurement process itself is capable before FAI data is considered valid.<\/p>\n<h3>What should I do if I receive a FAIR with some features marked &#8216;actual dimension not reported&#8217;?<\/h3>\n<p>Any feature listed on the drawing that appears in the ballooned inspection plan must be measured and reported. &#8216;Not reported&#8217; entries indicate an incomplete FAI and are not acceptable for formal approval. Common reasons for missing measurements include: features that are difficult to access with standard tooling (requiring fixtures or specialized probes), features inadvertently omitted during drawing ballooning, or features that require destructive testing (cross-section cuts for internal wall thickness). For each case, the molder must either provide measurement data, request a customer deviation, or use alternative measurement methods. Accept no FAIR with blank or &#8216;N\/A&#8217; entries unless formally approved.<\/p>\n<h3>Hoe be\u00efnvloedt materiaalkrimp de FAI-resultaten bij spuitgieten?<\/h3>\n<p>Material shrinkage is the primary reason why injection-molded part dimensions differ from the mold cavity dimensions, and it is a major source of FAI failures. Most engineering thermoplastics shrink 0.3\u20132.0% as they cool from melt temperature to ambient. The mold cavity is intentionally cut oversize by the expected shrinkage factor, but actual shrinkage varies with wall thickness, melt temperature, packing pressure, cooling rate, and material lot. FAI catches cases where actual shrinkage deviates from the design assumption. When FAI shows a systematic dimensional offset across all measured features, the root cause is almost always a shrinkage factor error, which is corrected by steel adjustment.<\/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>First Article Inspection:<\/strong> First Article Inspection (FAI) is a formal validation process that verifies the first production part or assembly from a new or modified manufacturing process meets all engineering design requirements before mass production begins. <a href=\"#fnref1:1\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:2\">\n<p><strong>AS9102:<\/strong> AS9102 refers to the aerospace industry standard that defines requirements for First Article Inspection reports, specifying documentation, dimensional verification, and material certification procedures. <a href=\"#fnref1:2\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:3\">\n<p><strong>Coordinate Measuring Machine:<\/strong> A Coordinate Measuring Machine (CMM) is a precision metrology device that measures the physical geometrical characteristics of a part by probing its surface with a contact or non-contact sensor, typically achieving accuracy within \u00b10.001 mm. <a href=\"#fnref1:3\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:4\">\n<p><strong>PPAP:<\/strong> PPAP (Production Part Approval Process) is an automotive industry standard that requires suppliers to demonstrate, through documented evidence including FAI data, that their manufacturing process can consistently produce parts meeting all customer specifications. <a href=\"#fnref1:4\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:5\">\n<p><strong>GD&#038;T:<\/strong> GD&#038;T (Geometric Dimensioning and Tolerancing) is an engineering notation system used on technical drawings to define the allowable variation in form, size, orientation, and location of part features, providing a universal language for precision manufacturing. <a href=\"#fnref1:5\" 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\": \"Is FAI required for every new injection mold, or only for regulated industries?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"FAI is mandatory for aerospace (AS9102), automotive (PPAP), and medical device (ISO 13485 \\\/ FDA 21 CFR Part 820) supply chains. However, any manufacturer running injection molds for precision assemblies should perform FAI regardless of industry, because the cost of discovering dimensional non-conformance at production scale vastly exceeds the cost of a structured first-article inspection. At ZetarMold, we recommend FAI for any production program with tolerances tighter than \\u00b10.15 mm or any assem\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How many parts are typically inspected during FAI?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"The standard minimum is 3\\u20135 parts from the actual production mold, running under production-intent process parameters. For multi-cavity molds, parts should be taken from every cavity\\u2014not just one representative part. If you have a 4-cavity mold, a proper FAI measures parts from all four cavities and records cavity-specific data. Cavity-to-cavity variation is a common failure mode in injection molding; FAI is the only way to confirm that all cavities are within tolerance simultaneously. Some cust\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What is the difference between FAI and PPAP?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"FAI (First Article Inspection) is a measurement and verification activity\\u2014it confirms that a specific part from a specific mold meets its drawing. PPAP (Production Part Approval Process) is a broader submission package required by automotive customers that includes FAI data as one of its 18 required elements, alongside design records, process flow diagrams, control plans, MSA studies, and capacity analysis. PPAP Level 3 (the most common) requires all 18 elements to be submitted to and approved b\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"Can FAI be performed by the molder, or must it be done by an independent lab?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"In most commercial and industrial applications, the molder's own quality team performs the FAI using calibrated, NIST-traceable measurement equipment. The customer reviews and approves the FAIR. For aerospace and defense applications, some customers require that FAI be witnessed by their own quality representative or a third-party inspection agency. Medical device applications under FDA oversight may require measurement system analysis (MSA \\\/ Gage R&R studies) to demonstrate that the molder's me\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"What should I do if I receive a FAIR with some features marked 'actual dimension not reported'?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Any feature listed on the drawing that appears in the ballooned inspection plan must be measured and reported. 'Not reported' entries indicate an incomplete FAI and are not acceptable for formal approval. Common reasons for missing measurements include: features that are difficult to access with standard tooling (requiring fixtures or specialized probes), features inadvertently omitted during drawing ballooning, or features that require destructive testing (cross-section cuts for internal wall t\"\n            }\n        },\n        {\n            \"@type\": \"Question\",\n            \"name\": \"How does material shrinkage affect FAI results in injection molding?\",\n            \"acceptedAnswer\": {\n                \"@type\": \"Answer\",\n                \"text\": \"Material shrinkage is the primary reason why injection-molded part dimensions differ from the mold cavity dimensions, and it is a major source of FAI failures. Most engineering thermoplastics shrink 0.3\\u20132.0% as they cool from melt temperature to ambient. The mold cavity is intentionally cut oversize by the expected shrinkage factor, but actual shrinkage varies with wall thickness, melt temperature, packing pressure, cooling rate, and material lot. FAI catches cases where actual shrinkage deviate\"\n            }\n        }\n    ]\n}<\/script><\/p>","protected":false},"excerpt":{"rendered":"<p>Key Takeaways Voor een uitgebreid overzicht, zie onze Complete Gids voor Spuitgieten. First Article Inspection (FAI) verifieert dat de eerste spuitgietonderdelen van een nieuwe matrijs alle dimensionale, materiaal- en functionele specificaties voldoen voordat de massaproductie begint. Een complete FAI controleert 100% kenmerken op de eerste 3\u20135 onderdelen, inclusief wanddikte, gate dimensies, kritieke toleranties [\u2026]<\/p>","protected":false},"author":1,"featured_media":51701,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"First Article Inspection in Injection Molding Guide","_seopress_titles_desc":"Learn what first article inspection (FAI) is in injection molding, why it matters, how to conduct it step by step, and what common non-conformances to expect.","_seopress_robots_index":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[43,42],"tags":[88,48,81,83,90],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/posts\/52367"}],"collection":[{"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/comments?post=52367"}],"version-history":[{"count":0,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/posts\/52367\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/media\/51701"}],"wp:attachment":[{"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/media?parent=52367"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/categories?post=52367"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/tags?post=52367"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}