Milling is a mechanical processing method in which a milling cutter is used as a tool to process the surface of an object. Milling machines include horizontal milling machines, vertical milling machines, gantry milling machines, profiling milling machines, universal milling machines, and bar milling machines. CNC milling aluminum parts is often less expensive than other metals like aluminum because they can be machined in a short amount of time. They also require no additional polishing. A small amount of zinc, magnesium, copper and other materials are added to increase the strength, because pure aluminum is usually soft. When it is exposed to the atmosphere, it will form a thin protective layer, making it resistant to corrosion and reducing the chances of the surface rusting. It is chemical resistant, easy to process, and strong for its weight. If you need the CNC milling service to produce different kinds of CNC milling parts like aluminum milling parts, copper milling parts, stainless steel milling parts, etc., please contact us.