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πŸ“„ 44 articles in total πŸ“… Continuously updated πŸ”₯ Pinned first, then sorted by rating, views and publish date
Advanced Quality & R&D Quality Β· Design Quality Β· Special Characteristics & Drawing Specifications

A Single Drawing Change Can Break the SC/CC Chain? β€”β€” Five-Step Method for Assessing and Synchronizing Special Characteristics Changes

1. A Dimension Change Leads to a Line Stoppage Three Months Later A certain automotive parts company received a customer engineeri…

Advanced Quality & R&D Quality Β· Design Quality Β· Special Characteristics & Drawing Specifications

Inaccurate Measurement of SC/CC on the Drawing? β€”β€” A Five-Step Method for Designing Measurement Plans for Special Characteristics

1. A "Measurement Mishap" Caused by a Drawing An experience from an automotive parts company serves as a warning for everyone invo…

Advanced Quality & R&D Quality Β· Change Management Β· Design & Process Changes

Change Review as a Formality, Resulting in Failures? β€”β€” CCB Change Review Five-Step Method, Welding the Quality Gate onto the Change Process

In an automotive parts company, the customer's drawing changed the bracket installation hole from Ο†8.5 to Ο†9.0. Technician Xiao Wa…

Advanced Quality & R&D Quality Β· Process Development & Approval Β· Control Plan (CP)

Inspection Frequency in Control Plans: Still Guessing? β€”β€” A Five-Step Method for Designing Inspection Methods and Frequencies

1. One Line of Text, Two Outcomes In the control plan of a certain automotive parts company, both SC (special characteristic) and …

Advanced Quality & R&D Quality Β· Process Development & Approval Β· PPAP & Process Approval

The 18 PPAP Submission Items: What Are They Really Proving? β€”β€” Element Classification Logic and the Three-Step Self-Check Method

Many quality professionals, when they first handle PPAP, simply follow the client's checklist: if the client asks for something, t…

Advanced Quality & R&D Quality Β· Process Development & Approval Β· Control Plan (CP)

Customer Audits, Control Plans Often Nonconforming? β€”β€” Five-Step Self-Check Method and High-Frequency Nonconformity List

The control plan is a critical checkpoint for PPAP submission, mass production delivery, and customer audits. However, many compan…

Advanced Quality & R&D Quality Β· Design Quality Β· Special Characteristics & Drawing Specifications

Special Characteristics Lost in Supplier Communication? β€”β€” Five Steps for SC/CC Supply Chain Transmission and Implementation Control

1. Introduction: The Diamond Symbol on Your Own Drawing, but Lost at the Supplier Last year, a car parts company received a compla…

Advanced Quality & R&D Quality Β· Process Development & Approval Β· PPAP & Process Approval

PPAP Submitted Three Times and Rejected Each Time? β€”β€” Five Common Rejection Reasons and a Five-Step Pre-Submission Self-Inspection Method

A supplier has just completed the sample pieces for a new project, and the quality engineer packs and sends the PPAP documents. In…

Advanced Quality & R&D Quality Β· Design Quality Β· Special Characteristics & Drawing Specifications

Is It Safe to Rely on Control Charts for SC/CC? β€”β€” A Five-Step Method for Designing Statistical Monitoring Plans for Special Characteristics

Many companies have experienced this: the drawings are marked with SC/CC, and the control plan specifies "SPC monitoring," but on …

Advanced Quality & R&D Quality Β· Process Development & Approval Β· Control Plan (CP)

Control Plan Compilation in Three Volumes, Yet No One Follows It on the Shop Floor? β€”β€” Six Steps from Compilation to Implementation

1. The Root Cause of the "Two Skin" Problem in CP Many companies' control plans (CP) are "compiled" rather than developed through …

Advanced Quality & R&D Quality Β· Design Quality Β· Special Characteristics & Drawing Specifications

Special Characteristics Not Well Managed? First, Identify Where the Loop is Broken β€” Five Key Links in the Full Lifecycle Management of SC/CC

1. Common Issues in Special Characteristics Management: Not Lack of Identification, but Chain Breakage Many companies are familiar…

Advanced Quality & R&D Quality Β· Process Development & Approval Β· PPAP & Process Approval

How to Choose the PPAP Submission Level (1 to 5)? β€”β€” Three Criteria for Level Selection, Pass on the First Submission

I. Introduction: The Same Part, Two Different Treatments from Two Suppliers A new project trial production at a certain original e…