Schematex
fmea·AIAG-VDA FMEA Handbook (2019) / IEC 60812·manufacturing, plastics·complexity 2/3·since v0.8.0

Injection-moulding PFMEA

A process FMEA for an injection-moulding line, ranked the legacy way by RPN. The engine computes RPN = S × O × D for every (step, mode, cause) row and flags the ones that breach the 100 threshold.

For the process / quality engineer

Open in Playground →
fmea·§
↘ preview
100%
Injection moulding PFMEA FMEA worksheet (process); 3 failure-mode row(s); ranked by RPN; highest risk: "Warpage" S6·O6·D7 → RPN 252, AP Medium (action should be taken); 3 flagged. Injection moulding PFMEA Flag: rpn > 100 · Rank: RPN # Item Function Failure Mode Effect(s) S Cause(s) O Current Controls D RPN AP 1 Cooling step — Solidify part to spec Warpage Out-of-tolerance dimension 6 Uneven cooling channel flow 6 D: CMM sampling 7 252 Mediu m 2 Incomplete part scrapped 7 Injection pressure too low 5 P: Pressure setpoint lock D: Vision check 4 140 Mediu m 3 Incomplete part scrapped 7 Blocked gate 3 D: Cycle-time monitor 6 126 Mediu m Mould fill step — Fill cavity with melt Short shot
UTF-8 · LF · 16 lines · 640 chars✓ parsed·2.1 ms·11.1 KB SVG

What this shows

A process FMEA (PFMEA) following the steps of an injection-moulding line — the fill step and the cooling step — rather than the parts of a product. Each process step gets its failure modes (short shot, warpage), the effect each has on the part, the process causes behind it, and the in-line controls that prevent or detect it.

This worksheet is ranked the legacy way with rank: rpn, so the engine sorts purely on RPN = S × O × D and the flag: rpn > 100 directive lights up every row above 100 — here the uneven-cooling warpage row at S6·O6·D7 (RPN 252) and the short-shot pressure row at S7·O5·D4 (RPN 140). Each rendered row carries data-rpn and data-ap, so even on a legacy RPN worksheet the AIAG-VDA Action Priority is still computed and inspectable underneath.

FMEA syntax