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The control plan is a critical checkpoint for PPAP submission, mass production delivery, and customer audits. However, m…
1. Introduction: The Diamond Symbol on Your Own Drawing, but Lost at the Supplier Last year, a car parts company receive…
A supplier has just completed the sample pieces for a new project, and the quality engineer packs and sends the PPAP doc…
Many companies have experienced this: the drawings are marked with SC/CC, and the control plan specifies "SPC monitoring…
1. The Root Cause of the "Two Skin" Problem in CP Many companies' control plans CP are "compiled" rather than developed …
1. Common Issues in Special Characteristics Management: Not Lack of Identification, but Chain Breakage Many companies ar…
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…
Many quality professionals have experienced this: a product problem occurs at the client's end, and upon tracing back, i…
1. Review Site: Failure Modes Misattributed to Processes While reviewing a PFMEA, the page for the final inspection proc…
1. Another Debate at the Review Site During a PFMEA review meeting, a similar debate arose again. A failure mode in a ce…
1. A Scene from the Review Meeting: "Operator Error" in the Failure Mode Column A company was holding a PFMEA review mee…