Why is it important to measure the dimensions of a workpiece in milling?

Measuring the dimensions of a workpiece in milling is crucial to ensure that it meets specified tolerances. Tolerances are the allowable limits of variation in a manufactured part, and adhering to these standards is essential for proper fit, function, and performance of the part within an assembly or system. If the dimensions of the workpiece are not within the specified tolerances, it can lead to issues such as improper assembly, decreased performance, and potential failure in application, which can ultimately result in costly rework, material waste, or even safety hazards.

While considerations such as aesthetics and weight may be relevant in specific contexts, they do not typically take precedence over dimensional accuracy in machining processes. Speed of machining is also important, but it should not compromise the precision required for the workpiece to function correctly within its intended application. Hence, ensuring dimensional integrity through accurate measurement is foundational in the milling process.