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A machining company submitted its PPAP, which was returned the next day with the client's sole reason: "The sampling for…
1. The Cost of Blind Signing: A Smooth Approval Followed by a Major Failure An electronics company supplies components t…
1. A PPAP Approved for Three Years, Revealing Eleven Issues During Customer Audit A Tier 1 automotive interior functiona…
1. A CP Used from Prototype to Mass Production, Resulting in Nonconformity During Factory Audit A certain automotive par…
1. One Line of Text, Two Outcomes In the control plan of a certain automotive parts company, both SC special characteris…
Many quality professionals, when they first handle PPAP, simply follow the client's checklist: if the client asks for so…
The control plan is a critical checkpoint for PPAP submission, mass production delivery, and customer audits. However, m…
A supplier has just completed the sample pieces for a new project, and the quality engineer packs and sends the PPAP doc…
1. The Root Cause of the "Two Skin" Problem in CP Many companies' control plans CP are "compiled" rather than developed …
I. Introduction: The Same Part, Two Different Treatments from Two Suppliers A new project trial production at a certain …
1. Reaction Plan: The Most Overlooked Column in Control Plans Opening a control plan, the first few columns—process, cha…
1. Review Site: Failure Modes Misattributed to Processes While reviewing a PFMEA, the page for the final inspection proc…