PPAP & APQP

Guided by YBmetal , PPAP for iron castings: gray/grey & ductile iron castings with machining, simulation-led gating/risers, and traceable QA packs for PPAP/FAI. Excerpt: This guide shows how to pick PPAP levels for iron castings and which documents actually matter—beyond the generic list. Use our risk-based level matrix, foundry-specific document set, and pilot run plan…

A realistic playbook for PPM, DPPM, OTD, and COPQ in iron castings (foundry quality KPIs). Get clear formulas, target ranges by industry/complexity, and YB Metal quality gates—even before you RFQ. TL;DR — realistic targets you can buy against Definitions & formulas (agree the math first) KPI What it measures Formula Notes PPM (Parts Per Million)…