Causes of convex rib of workpiece in internal and external cylindrical grinder

The reasons for rib lifting of internal and external cylindrical grinder workpiece are as follows:

1. Improper selection of cutting tools or abrasive particles: the selected cutting tools or abrasive particles are too rough or not suitable for the current workpiece materials and shapes, resulting in excessive shearing force or pressure during grinding, resulting in rib.

2. Improper setting of grinding parameters: unreasonable setting of parameters such as feed speed, rotating speed and cutting depth during grinding leads to overheating or excessive load during cutting, which leads to rib on the surface of workpiece.

3. Uneven surface hardness of workpiece: Uneven surface hardness of workpiece is caused by the material itself or improper heat treatment. When grinding, the area with uneven hardness will be cut or ground to different depths, resulting in the phenomenon of rib.

4. Instability of grinding machine: the mechanical structure of grinding machine itself is unstable or the workpiece is not firmly fixed, which will cause vibration or displacement during grinding, and then cause the workpiece to become hard. Internal grinder is a kind of grinder for grinding the inner surface of the workpiece, and it is also an ideal choice for grinding the inner hole of the workpiece. It can accurately remove the material on the inner surface of the workpiece and form a hole with the required diameter for manufacturing and assembly.