Milling is a process of machining that uses rotary cutters to remove material by advancing a cutter into a workpiece. The cutter is a rotary cutting tool, often with multiple cutting points, that removes material from the surface of a workpiece. Milling is a cutting process that is used to create a wide variety of different operations and machines, on scales from small individual parts to large, heavy-duty gang milling operations). The process is performed with a rotary cutter with several cutting edges arranged on the periphery of the cutter. Milling is a type of machining process that uses a rotating cutter to remove material in a controlled manner from a workpiece. This subtractive manufacturing technique aims to turn the workpiece into the required shape. A modern milling machine is often paired with Computer Numerical Control (CNC) for automated control over the whole process.
Milling is used for various purposes, but mostly for three distinct types of holes: oversized round holes that cannot be drilled, round slotted holes for e.g. connections that require flexibility during construction and rectangular holes. Milling can work on a wide range of workpiece materials. Some common materials that undergo milling are metals, plastics, and wood.
In the food industry, milling is the process of cleaning, tempering, and grinding cereal grains into flour and other milled grain products. Ground grain is used to produce bread, cakes, biscuits, and other edible products. Milling is also used in the production of distilled spirits, where the purpose of milling and pressing is to make the starch or sugar more available for enzyme action.