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📄 28 articles in total 📅 Continuously updated 🔥 Pinned first, then sorted by rating, views and publish date
Six Sigma & Statistical Quality · Measurement & Inspection · MSA & Traceability

Advancing QE Skills (8) | How to Conduct MSA for Online Measurement and Automatic Inspection Equipment

An electronics company entrusted the final inspection of its assembly line to an online automatic inspection device: par…

Six Sigma & Statistical Quality · Measurement & Inspection · MSA & Traceability

Machine Vision Judging Conformity, but No MSA Done? —— Five Steps for MSA of Automated Measurement Systems

A certain automotive parts company installed an online visual inspection system last year: after stamping parts are off …

Six Sigma & Statistical Quality · Measurement & Inspection · MSA & Traceability

Advancing QE Skills (6) | Gauge Calibration May Be Qualified, but the Measurement System May Not: The Relationship Between Calibration and MSA

1. Comprehensive Certificates, Yet Inconsistent Judgments A manufacturing company was releasing a batch of aluminum die …

Six Sigma & Statistical Quality · Measurement & Inspection · MSA & Traceability

QE Skill Advancement (5) | MSA for Attribute Gauges: How to Quantify Visual Inspection (Kappa and Consistency Analysis)

1. Introduction: Why a "Beautiful" Kappa Report Was Rejected by the Customer A certain electronics manufacturing company…

Six Sigma & Statistical Quality · Measurement & Inspection · MSA & Traceability

QE Capability Enhancement (4) | How to Set MSA Plans: Which Gauges, How Deep, and How Often to Re-evaluate

A manufacturing company was undergoing a customer process audit. The quality manager presented a stack of measurement sy…

Six Sigma & Statistical Quality · Measurement & Inspection · MSA & Traceability

GR&R Passes, but the Gauge is Not Sufficient? —— Five-Step Method for Identifying and Addressing Insufficient Gauge Resolution

1. A Vernier Caliper That "Can't See the Difference" A parts manufacturer was inspecting a shaft with a tolerance of 0.0…

Six Sigma & Statistical Quality · Measurement & Inspection · MSA & Traceability

MSA: Not Just a GR&R? —— Five Steps to Implement Bias, Linearity, and Stability Analysis

1. GR&R Passed, but the Gauge Made Two Shifts into Rivals A certain electronics factory was inspecting the height of con…

Six Sigma & Statistical Quality · Measurement & Inspection · MSA & Traceability

Can GR&R Be Calculated When Test Pieces Break? —— Case Study of a Destructive Measurement System Analysis in an Automotive Parts Company

1. A "Excellent" Report of 7.1%, Resulting in Six Months of Fake Data An automotive parts company supplies welded bracke…

Six Sigma & Statistical Quality · Measurement & Inspection · MSA & Traceability

GR&R Exceeds Limits, Don’t Rush to Replace the Measuring Tool — A Five-Step Method for Identifying and Addressing Measurement System Failures

1. Common Mistakes After Exceeding Limits %GR&R measures 32%, and the first reaction at the quality meeting is often: "T…

Six Sigma & Statistical Quality · Measurement & Inspection · MSA & Traceability

Day Shift Release, Night Shift Return? —— Counting MSA Transforms Visual Inspection from "By Feel" to "By Standard"

1. Introduction: The Same Product, Qualified in the Morning, Unqualified in the Afternoon A certain automotive parts com…

Six Sigma & Statistical Quality · Measurement & Inspection · MSA & Traceability

A "Faulty Ruler" Nearly Turned Good Products into Scrap: A Case Study of Measurement System Reconstruction in an Automotive Parts Company

1. Introduction: The Most Contradictory Scene A leading product of an automotive parts company is the engine hydraulic v…

Six Sigma & Statistical Quality · Measurement & Inspection · Sampling Inspection & AQL

Zero Defect (c=0) Sampling Plan — A Sampling Method That Rejects All Nonconforming Products

Abstract : Conventional AQL sampling plans allow for a certain number of nonconformities within a batch Ac≥1 , which inh…