When are production parts typically rejected?

Production parts are typically rejected when their dimensions are out of tolerance. In manufacturing processes, tolerance specifications define the acceptable limits of variation in the dimensions of a part. When a part does not meet these specifications, it can lead to issues in functionality, assembly, and quality, which is why it is critical for parts to remain within the established tolerances. Rejecting out-of-tolerance parts helps ensure that only components that meet quality standards are used in production, thereby maintaining the integrity of the final product.

In contrast, parts that are within tolerance, match specifications, or are evaluated solely on color do not typically warrant rejection, as they meet the necessary quality and functional criteria expected in manufacturing processes.