Practical techniques Β· Tool applications Β· Pitfall guides Β· Case studies Β· Data analysis Β· Improvement methods Β· Audit readiness
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1. A Workshop Where "Control Charts Have Been Drawn for Three Years" In the spring of 2026, I witnessed a scene at a preβ¦
A quality engineer in a heat treatment workshop has been staring at a "control chart that doesn't look like a control chβ¦
When it comes to SPC control charts, most workshops immediately think of the XΜ R chart: measuring dimensions, torque, aβ¦
In a hydraulic valve body workshop, the bore diameter is a customer specified special characteristic with a tolerance ofβ¦
1. A Meeting Held Three Times Without a Conclusion A car parts company's bracket hole size, after six months of mass proβ¦
1. Why Did No One Look at the Chart After Seven Days A machining workshop in an automotive parts company once implementeβ¦
1. A One Size Fits All Approach Leads to a Year of False Alarms A certain electronic component company's SPC implementatβ¦
1. Introduction: A "Qualified" Machine Fails After Three Months of Mass Production A manufacturing company recently purcβ¦
A mechanical processing company submitted an initial process capability report to a client, focusing on the roundness ofβ¦
A precision machining company supplies drive shafts to a new energy client. During the client's audit, a process capabilβ¦
During a process audit at an automotive parts company, an auditor pointed to the XΜβR control chart hanging on the wall β¦
An incident occurred at a machining company: during a quarterly inventory check, it was discovered that the scrap rate oβ¦