Precision parts machining for electronic equipment has extremely high requirements for machining accuracy, using highly efficient CNC machining technology, and requires the selection of materials with moderate hardness, such as aluminium, stainless steel, carbon steel, brass and magnesium. During the machining process, attention needs to be paid to the density and hardness of the material so as not to exceed the hardness of the machined parts and cause damage or danger. In addition, a fine finishing stage is required, using large cutting speeds, small feeds and depths of cut to achieve the technical requirements of the drawing. The main machining methods are precision cutting, fine mirror grinding, precision grinding and polishing.