Machining development process route principle

2024-01-21 17:59:19

1, first processing datum surface

Parts in the process of processing, as the location of the basis of the appearance should be first processed out, in order to as soon as possible for the follow-up process of processing supply fine benchmark. This is called "baseline first."

2, distinguish the processing stage

Processing quality requirements of high appearance, are divided into processing stages, generally can be divided into rough processing, semi-finishing and finishing three stages. The first is to ensure the quality of processing; Conducive to rational use of equipment; Easy to organize heat treatment process; And when it is convenient to find blank defects.

3. Face before hole

For the box, bracket and connecting rod and other parts should be processed before processing the plane hole. In this way, the plane positioning Machining hole can ensure the precision of the position of the plane and the hole, and bring convenience to the processing of the hole on the plane.

4, finishing processing

The finishing processing of the primary appearance of the workpiece after finishing processing (such as Grinding, honing, grinding and rolling processing, etc.) should be placed in the final stage of the process road Z. The surface finish after processing is above Ra0.8um, and the slight knock will damage the appearance. In Japan, Germany and other countries, after finishing processing, flannel should be used for maintenance. It is definitely forbidden to touch the workpiece directly with hands or other objects, so as not to finish the appearance of the workpiece, because of the transfer and equipment between the processes and damage.