Why is there a big spark in the work of surface grinder?

The reasons for the large spark in the middle of the work of the surface grinder are uneven grinding wheel wear, uneven grinding force and too fast grinding speed.

1. Uneven wear of grinding wheel: The grinding wheel is the grinding tool of surface grinder. If the grinding wheel wears unevenly, it will lead to uneven sparks during grinding, which will further affect the machining quality.

2. Uneven grinding force: In the grinding process, if the grinding force is uneven, the workpiece will be unbalanced and the sparks will be concentrated in the center of the workpiece.

3. The grinding speed is too fast: if the grinding speed is too fast, the friction and collision between abrasive particles and the workpiece will be more intense, and then more heat and sparks will be generated, thus making the intermediate sparks bigger.