Process capability for parts with ovality or min-max dia

Use Case of process capability estimation for a part with ovality This post is an attempt to answer a practical issue faced when we try to estimate the process capability of a process for parts that "can be" oval in nature, but not necessarily expected to be oval. Let's take an (exaggerated) example, for the sake of visualization of the concept. The customer has specified that the inner diameter of a ring should be 9 inches, with a tolerance of […]

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