Turning processing refers to a cutting method that uses the rotation of the workpiece and the movement of the tool on the lathe to cut excess material from the surface of the workpiece, making it a part that meets the requirements of a certain shape, size and surface quality. Among them, the rotation of the workpiece is the main movement, and the movement of the tool is the feed movement.
Turning is more common than other processing methods, and in general machining workshops, lathes often account for 20% to 50% or more of the total machine tools. Lathes are mainly used to process a variety of rotary surfaces (internal and external cylindrical, conical and forming rotary surfaces) and the end face of the rotary body, and some lathes can process threaded surfaces.