What should be followed in the processing of precision metal car parts

1. Datum first: the reference plane is processed first. In the process of processing parts, the appearance as a positioning reference must be processed first, so as to provide an accurate reference for the next process as soon as possible.

2. Division of processing stages: For appearances with higher processing quality requirements, they are divided into processing stages, which can generally be divided into three stages: rough processing, semi-finishing and finishing. Mainly to ensure the processing quality, facilitate the scientific application of equipment, facilitate the layout of the heat treatment process, and facilitate the discovery of blank defects.

Precision metal car parts processing

3. Face first, hole second: For the box, bracket, connecting rod and other parts, the plane must be processed first, and then the hole must be processed. In this way, holes can be placed on the plane to ensure the accuracy of the plane and the position of the holes, and it is convenient to handle the holes on the plane.

4. Finishing processing: The finishing processing of the main surface, such as grinding, honing, fine grinding, rolling processing, etc., should be placed at the end of the process route. The general principles for the creation of process routes for precision parts and the formulation of process rules for precision parts can be roughly divided into two links.

The first is to establish a process path for processing hardware car parts, determine the process size of each process, the equipment and process equipment used, the cutting specifications, and the allocation of labor hours.

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