Metal-Insert Overmolded Housing for Electronics Assembly
Challenge · Solution · Result
Electronics manufacturer needed a snap-fit housing with 6 brass heat-set inserts per part, critical thread pull-out strength ≥500N, and ±0.05mm dimensional tolerance on all mating features.
Designed insert-loading fixture and mold cavity for repeatable insert positioning. Used PA66-GF30 compound for dimensional stability. Validated pull-out strength via destructive testing on 50-piece first article.
All 6 inserts: pull-out strength 680–720N (target ≥500N). Dimensional CPK ≥1.67 on all critical features. Production yield 99.8% at 10,000 pcs/month.
Engineering Insights
DFM Analysis & Process Optimization
DFM Analysis: Gate location optimized to eliminate weld lines near insert positions. Cooling channel configuration reduced cycle time by 22%.
Our engineers work from your CAD drawings before any tooling begins — identifying potential failure modes, proposing material alternatives, and validating gate/cooling layouts digitally. This eliminates costly mold revision cycles.
Empirical Test Data
Physical test results from production samples — available with every shipment on request.
| Property | Requirement | Result |
|---|---|---|
| Insert Pull-out Strength | ≥ 500N | 680–720N |
| Critical Dimension CPK | ≥ 1.33 | 1.71 |
| Warpage (200mm span) | ≤ 0.3mm | 0.18mm |
| Surface Finish | SPI-B1 | SPI-B1 achieved |
Get an Engineering Quote Within 24 Hours
Share your drawings, quantity and material requirements. Our team performs a complimentary DFM review before quoting.
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