Machining of Housing Parts in Automobile Manufacturing

Flexible machining for shell parts

Shell parts machining traditionally used the multi-purpose machine tools or special machine tools, since the late 20th century, mostly used flexible machining centers, namely is that after fixing the processing positioning benchmark, in a machine tool, through the multi-use of different, dozens of tools processing on part surfaces, holes, and complete the rough processing and finishing. Machining accuracy is determined by tooling, tools and machine spindle accuracy.

Processing for retarder housing and gearbox differential case

Retarder and automotive differential housings are a typical box-type parts, mainly processing plane and the hole system. In the machining process, to ensure the hole size accuracy and hole position accuracy, dealing with the contacts between the hole and the plane. It should follow the principle of “plane first, hole later”, that is, first processing the base plane on the housing, and then machining the other planes according to the base plane, and finally dealing with hole system. Because of the large area of the plane, with its positioning to ensure reliable positioning, firmly clamping, and thus easy to ensure the accuracy of the hole processing. The next step is to cut the uneven parts on the casting surface, in order to improve the processing accuracy for the holes, to facilitate the tool setting and adjusting, that is conducive to tools protection. Processing technology should also follow the principle of separation of rough processing and finishing processes.