Turning: refers to lathe processing as a part of mechanical processing. Lathe processing mainly uses turning tools to turn rotating workpieces. Lathes are mainly used to process shafts, discs, sleeves and other workpieces with rotating surfaces. They are the most widely used type of machine tool processing in machinery manufacturing and repair factories. Turning is a method of cutting the workpiece on a lathe by rotating the workpiece relative to the tool. The cutting energy for turning is mainly provided by the workpiece rather than the tool. Turning is the most basic and common cutting processing method and plays a very important role in production. Turning is suitable for processing rotating surfaces. Most workpieces with rotating surfaces can be processed by turning methods, such as internal and external cylindrical surfaces, internal and external conical surfaces, end faces, grooves, threads and rotary forming surfaces. The tools used are mainly turning tools.

Milling: The blank is fixed and a high-speed rotating milling cutter is used to cut out the required shapes and features. Traditional milling is mostly used for milling simple shapes/features such as contours and slots. CNC milling machines can process complex shapes and features. The milling and boring machining center can perform three-axis or multi-axis milling and boring processing, and is used for processing molds, inspection tools, molds, thin-walled complex curved surfaces, artificial prostheses, blades, etc. When selecting CNC milling processing content, the advantages and key role of CNC milling machines should be fully utilized.
Planing: It is a cutting processing method that uses a planer to make horizontal and relatively linear reciprocating motions on the workpiece. It is mainly used for the shape processing of parts. The precision of planing processing is IT9~IT7, and the surface roughness Ra is 6.3~1.6μm.
Grinding: refers to a processing method that uses abrasives and abrasive tools to remove excess material from the workpiece. Grinding is one of the most widely used cutting methods.






