What Is a Chamfer?

Chamfering refers to the process of cutting the edges and corners of a workpiece into a certain slope. The chamfering is to remove the burrs caused by machining on the part, and to facilitate the assembly of the part, the chamfering is generally made at the end of the part.

The function of chamfering is to remove burrs and make them beautiful. However, the chamfers specifically indicated in the drawings are generally the requirements of the installation process, such as the installation guide of the bearing, and some arc chamfers (or arc transitions) can also reduce the stress concentration and strengthen the shaft. The role of strength of similar parts. In addition, assembly can be facilitated, and is generally performed before the end of processing. On agricultural machinery parts, especially the end faces of round accessories and round holes are often processed into chamfers of about 45 °. These chamfers have a variety of functions, which must be carefully checked during maintenance operations and fully utilized, otherwise it will bring many difficulties to agricultural machinery maintenance 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 mold.

The summary has the following points:

1. The bearing steel must be chamfered during rough machining before heat treatment. This has a very important role in stress release, redistribution of internal structure, and crack resistance, which reduces deformation during heat treatment of the material. 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. Play a role of guiding and positioning during assembly. ^[1]