In the last article, we introduced the process of precision machining to everyone. Today, we will add the general principle of precision parts processing, that is, the general principle of the processing route of precision parts, which is mainly elaborated in the following four points:
In the last article, we introduced the process of precision machining to us. Today, our Chief Engineer of Science and Technology gave us the general principle of precision parts processing, that is, the general principle of the processing route of precision parts, mainly from the following Four points elaborate:
General principles of precision parts processing
1, benchmark first
That is, the reference surface is first machined. During the machining process of the part, the appearance, which serves as the positioning reference, should be processed first to provide a refined reference for the subsequent processing.
2, divide the processing stage
The appearance of the machining quality request is divided into three stages: rough machining, semi-finishing and finishing. Mainly to ensure the quality of processing; to facilitate the application of scientific equipment; easy to arrange the heat treatment process; and when found to facilitate rough defects.
3, the first hole
For cabinets, brackets, and connecting rods, etc., the flat post-processing holes should be machined first. In this way, the machined holes can be positioned in a plane to ensure the accuracy of the position of the plane and the holes, and the processing of the holes in the plane can be facilitated.
4, finishing
The main appearance of the finishing process, such as grinding, honing, fine grinding, rolling, etc., should be placed at the end of the process route. The general principles for the preparation of precision parts processing routes and the development of precision parts processing procedures can be roughly divided into two links. The first is to formulate the process route of the part processing, and then determine the process dimensions, equipment and process equipment used for each process, as well as cutting specifications, working hours, etc