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1. Introduction: An Audit Report Reveals the True Picture An automotive parts company specializes in spline shafts, with an annual…
Many quality professionals get stuck on model selection when they start learning DOE: they know how to handle a few factors, but w…
1. Introduction: The Most Contradictory Scene A leading product of an automotive parts company is the engine hydraulic valve body,…
1. Introduction: A Project Stuck in the Measure Phase for Four Months A manufacturing company initiated a Six Sigma project last y…
Many companies experience the same excitement and disappointment when implementing Six Sigma: sending a batch of key personnel for…
1. DOE is Not a Synonym for "Conducting More Trials" Many companies follow a strikingly similar process when implementing DOE: the…
Abstract : Even when the parameters of a product are set to the "best," issues often arise during mass production—material batches…
Abstract : Conventional AQL sampling plans allow for a certain number of nonconformities within a batch (Ac≥1), which inherently c…
Abstract : The inability to create a control chart is a capability issue, but choosing the wrong chart is a directional issue. Man…
When process issues involve many candidate factors and the cost of experiments is high, quality professionals often find themselve…
In product development, many assembly issues and functional failures often stem not from a single part being poorly made, but from…
Abstract : Quality improvement for formulation products (adhesives, coatings, foods, rubbers, etc.) is often fraught with the chal…