Top 10 Injection Molding Defects and the CAD Fix for Each
The 10 most common injection molding defects — sink, warp, short shots, weld lines, voids, jetting — and the exact CAD fix for each.Read the full breakdown: https://www.fictiv.com/articles/the-ten-most-common-injection-molding-defects?utm_source=youtube&utm_campaign=proven_search&utm_content=im_defects_ep01_description
Every one of these looks like a shop problem, but almost all of them are fixable in your CAD model before a tool ever gets cut. Catch them there and the fix costs you nothing. Catch them after tooling and you're into weeks of delay and real money. This video walks through all ten — cause and fix — in under 7 minutes.
Get the free Injection Molding Design Guide (wall/rib ratios, draft angle tables, gating rules): https://www.fictiv.com/ebooks/get-smart-on-injection-molding?utm_source=youtube&utm_campaign=proven_search&utm_content=im_defects_ep01_description
Upload your part for an instant quote + automated DFM feedback on wall thickness and draft: https://www.fictiv.com/signup?utm_source=youtube&utm_campaign=proven_search&utm_content=im_defects_ep01_description
Explore Fictiv's Injection Molding capabilities: https://www.fictiv.com/capabilities/injection-molding-services?utm_source=youtube&utm_campaign=proven_search&utm_content=im_defects_ep01_description
Chapters:
0:00 Cold open — 10 defects, all preventable in CAD
0:20 Why it matters: fix in CAD = $0, fix in hardened steel = weeks + $$$
0:45 Defects 1–3: The Cooling Family (Sink, Warp, Voids)
2:25 Defects 4–6: The Flow Family (Short Shot, Weld Lines, Flow Lines)
4:05 Defects 7–8: Gate & Injection (Jetting, Delamination)
5:12 Defects 9–10: Ejection & Venting (Burn Marks, Flash)
6:20 Free Design Guide + instant DFM feedback
Fictiv is a global manufacturing company that simplifies sourcing for custom manufacturing, from prototype to production. Our AI-powered platform and vetted manufacturing network span Injection Molding, CNC Machining, Sheet Metal, 3D Printing, Die Casting, Compression Molding, and Urethane Casting — with 30M+ parts delivered to date.
#InjectionMolding #DFM #ProductDesign
(Chapter timestamps are estimated from the brief’s section breakdown — adjust to match your final edit; YouTube just needs the first one at 0:00 and each ≥10 seconds apart, which this satisfies.)
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injection molding defects, injection molding troubleshooting, sink marks injection molding, warp injection molding, short shot defect, weld lines injection molding, injection molding voids, jetting defect, injection molding flash, burn marks injection molding, injection molding DFM, design for manufacturability, DFM checklist, injection molding design guide, CAD design tips, mechanical engineering, product design engineering, mold flow analysis, plastic part design, Fictiv, custom manufacturing
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Free Injection Molding Design Guide (wall/rib ratios, draft angle, gating rules): https://www.fictiv.com/ebooks/get-smart-on-injection-molding?utm_source=youtube&utm_campaign=proven_search&utm_content=im_defects_ep01_pinned
Get instant pricing + automated DFM feedback on your part: https://www.fictiv.com/signup?utm_source=youtube&utm_campaign=proven_search&utm_content=im_defects_ep01_pinned
Full article with all 10 defects: https://www.fictiv.com/articles/the-ten-most-common-injection-molding-defects Receive SMS online on sms24.me
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