Milling uses a cutting tool, which works on a rotary motion, with multiple cutting points and is generally moved perpendicular to the axis
The process involves using a cutting solution involving many separate and small cuts to remove material from the surface of a workpiece in order to form chips. Three elements are combined in order to achieve this, a cutter with numerous teeth, a high speed spinning cutter and feeding the material slowly through the cutter. The three variables are altered depending on what is required.
A variety of tools are used in the milling process in order to tailor the process. Their cutting surfaces are generally constructed from robust, temperature-resistant material with surfacing applied to decrease friction and improve longevity.
Material cut by the side of the cutter will always contain regular ridges on the surface. Variations in the height of these ridges can be significant depending on the feed rate, the diameter of the cutter and the number of cutting surfaces.
This term is used to describe the process when two or more cutters are mounted horizontally on the same arbor either to perform the same operation of different ones. This process ensures all workpieces are the same will minimal milling time.