At present, the housing of new energy electric drive should be the die-casting  with the highest processing dimensional accuracy requirements. The bearing hole of the electric drive housing is a key part in the drive system, and its processing quality directly affects the bearing assembly accuracy, transmission efficiency and equipment life. The processing accuracy of motor parts is one of the important factors affecting the performance and life of the motor. In the manufacturing process of motor parts, the control of processing accuracy is very critical to improving motor performance, reducing noise, extending service life and improving product quality. Common types, causes and measures of defects in die-cast housings are:

The forming process of complex sheet metal parts is widely used in aerospace, automobile manufacturing, electronic equipment and other fields, and has extremely high requirements for the dimensional accuracy, shape accuracy and surface quality of the parts.

3D printing, or additive manufacturing, is a technology based on digital models. It starts with an electronic file in a CAD software design or digital library, and the design is broken down into layers by build preparation software to generate path instructions for the 3D printer.

In CNC machining, the rotation direction of the milling cutter is generally unchanged, but the feed direction is changed. This results in two common phenomena in milling: forward milling and reverse milling.    

In recent years, with the rapid development of new energy vehicles, the die-casting body integrated molding process has become the focus of publicity by major manufacturers. Die-casting frequently appears in various media. As one of the important technologies for achieving lightweight automobiles, this process has attracted much attention.

The demand for lightweight new energy vehicles is further increasing. The price of magnesium alloy raw materials is inverted and lower than that of aluminum alloy raw materials.

1. Trial cutting and tool setting method
This method is simple and convenient, but it will leave cutting marks on the CNC workpiece surface and the tool setting accuracy is low.

Commonly used surface treatment processes include: vacuum plating, electroplating, anodizing, electrolytic polishing, pad printing, galvanizing, powder spraying, water transfer printing, screen printing and electrophoresis.

The processing of plastic raw materials mainly involves the melting, flowing, shaping and cooling of rubber particles into finished products.

CNC (computer numerical control) is the abbreviation of computer numerical control, which is an automated machine tool controlled by a program.