For pure electric vehicles, the manufacture of its powertrain no longer requires traditional internal combustion engines, and correspondingly no longer requires components such as engine blocks, cylinder heads, crankshafts, camshafts and connecting rods. But even in the production of pure electric vehicles, the demand for metal cutting for a considerable number of components remains largely unchanged. In addition, a new part of the workload that requires metal cutting machining has been added. For example, in the manufacture of new energy vehicle drive motors, metal cutting processing is required for motor shafts and motor casings, and metal cutting processing is required for new types of molds (including various special processing).