Milling machine, modern device that revolves around a large round cutting tool with many cutting edges close together around its axis; generally the workpiece is held at a central vise or similar rotating device clamped to a fixed table that rotates in three horizontal directions. In addition to rotating the work piece in the milling machine bed, the work surface also moves and is oscillated by means of a gear wheel fixed to the inner edge of the lathe. To cut a material, a cutter blade equipped with a grinding wheel attached is directed on the material and its edges are crushed by the grinding operation. This crushing operation generates a wear and tear in the grinding wheels and the edges of the cutting tool.
Milling machines can be classified into several types. The two most popular machines are those that grind solid metal parts and those that grind hollow tubes. The former type is appropriately called a drill press while the latter type is appropriately termed a die grinder. With regard to the technology used in the fabrication of these machines, there is a wide range such as CNC mills that use computer numerical control (CNC) technology, robotic machines, direct roll machines, ink jet printers, solid state machines, plasma cutters and more.
A CNC milling machine is a combination of a drill press and a cutting instrument which rotate around a fixed axis Laser Cutter. The rotary action of the CNC milling machine is controlled by various software programs that enable the operator to specify the distance, width and cutting edges as well as the speed at which the rotation is performed. The work piece may be moved manually or by mechanical means such as a worm drive or a chain driven belt. With the advancement of technology, more sophisticated CNC milling machines with even greater speed and accuracy are available to users.