Chamfering refers to the processing of cutting the corners of the workpiece into a certain slope. Chamfering is to remove the burrs on the parts due to machining, and to facilitate the assembly of parts, chamfering is generally made at the end of the parts. The angle is generally 45 degrees, 30 degrees or 60 degrees.
The purpose is to remove the burrs on the parts due to machining.
Generally, the function of chamfering is to remove burrs and make them beautiful. However, the chamfers specially pointed out in the drawings are generally the requirements of the installation process, such as the installation guide of the bearing, and some arc chamfers (or called arc transitions) can also reduce stress concentration and strengthen the shaft. The effect of the strength of the class part. In addition, it also facilitates assembly, generally before machining is complete. On agricultural machinery parts, especially the end faces of round fittings and round holes are often processed into a chamfer of about 45°. These chamfers have many functions, and must be carefully checked and fully utilized during maintenance operations, otherwise it will bring many difficulties to the maintenance of agricultural machinery, and even cause unexpected failures. For example, chamfering is also performed before the forming process of small parts such as bolts, so that the material can easily enter the forming die.
The summary has the following points:
1. Bearing steel must have chamfers during rough machining before heat treatment, which plays a very important role in the release of stress, redistribution of internal structure, less cracks and reduction of deformation during heat treatment of materials. Chamfering can solve the problem of stress concentration.
2. Chamfering and deburring, so that the product is not sharp and will not cut the user.
3. It plays a role of guiding and positioning during assembly.
