Metal cutting technology is divided into turning, milling, planing, grinding, drilling and boring. The details are as follows:

1. A lathe refers to a machine tool that uses the rotation of the workpiece as the main movement and the movement of the turning tool as the feed movement to process the rotary surface. It can be used to process various rotary forming surfaces, such as internal and external cylindrical surfaces, internal and external conical surfaces, internal and external threads, end faces, grooves, knurling, etc. It is the most widely used machine tool with the longest production history and the most varieties among metal cutting machine tools. There are many types of lathes. According to their uses and structures, they can be divided into: instrument lathes, horizontal lathes, single-axis automatic lathes, multi-axis automatic and semi-automatic lathes, turret lathes, vertical lathes, multi-tool semi-automatic lathes, specialized lathes wait. In recent years, computer technology has been widely used in the machine tool manufacturing industry, and subsequently mechatronics products such as CNC lathes and turning machining centers have emerged.

2. Milling machines refer to machine tools that mainly use milling cutters to process various surfaces on workpieces. Usually the rotational motion of the milling cutter is the main motion, and the movement of the workpiece (and) the milling cutter is the feed motion. It can process flat surfaces, grooves, various curved surfaces, gears, etc.

3. Planer refers to a machine tool that uses a planer to process the surface of a workpiece. The tool and the workpiece perform relative linear motion for processing. It is mainly used for processing various planes and grooves, and can also be used for processing straight-line forming surfaces.

4. Grinder refers to a machine tool that uses abrasives or abrasives to process various surfaces of workpieces. Generally used for grinding the hardened surfaces of parts. Usually, the rotation of the grinding tool is the main motion, and the movement of the workpiece or the grinding tool is the feed motion. It has wide applications, high processing accuracy, and small surface roughness Ra value.

5. Drilling machine refers to a machine tool that mainly uses drill bits to process holes in workpieces. Usually the rotation of the drill bit is the main motion, and the axial movement of the drill bit is the feed motion. The drilling machine has a simple structure and relatively low processing accuracy. It can drill through holes and blind holes. By replacing special tools, it can expand, countersink, ream, or tap.

6. Boring machines refer to machine tools that mainly use boring tools to process pre-made holes on workpieces. Usually, the rotation of the boring tool is the main motion, and the movement of the boring tool or the workpiece is the feed motion. It is mainly used to process high-precision holes or complete the finishing of multiple holes in one positioning. In addition, it can also be used to process other processing surfaces related to hole finishing.