What primary function does a milling cutter serve during the machining process?

A milling cutter's primary function in the machining process is to cut material from the workpiece. This tool is specifically designed with sharp edges that are capable of removing material in a controlled manner, shaping the workpiece into the desired form or dimensions. The cutting edges of the milling cutter engage the workpiece as it rotates, allowing precise cuts to be made at various depths and angles, which is crucial for producing parts with tight tolerances or intricate geometries.

The ability of the milling cutter to effectively remove material is what distinguishes milling from other processes. While other functions, like holding the workpiece steady or producing a smooth surface finish, are important aspects of milling operations, they are secondary to the primary role of the cutter itself in executing the cutting action. Calibration of the machine is a maintenance task that ensures accuracy but is not directly related to the function of the milling cutter.