What is the primary function of a CNC milling machine?

The primary function of a CNC milling machine is to remove material from a workpiece to create a desired shape. CNC, which stands for Computer Numerical Control, refers to the automation of machine tools through the use of computer programming for precise control. In milling operations, a rotating cutting tool moves across the surface of the workpiece, effectively removing material in specific patterns to produce parts with intricate shapes, sizes, and surface finishes.

This capability allows for high precision and repeatability, making CNC milling machines essential in manufacturing processes where exact dimensions and tolerances are critical. While assembling workpieces, measuring dimensions, and polishing surfaces are important tasks in manufacturing, they do not define the core function of CNC milling, which is focused squarely on the material removal process to achieve the required shape and specifications.