What are the factors that affect the life of the grinding wheel
Grinding wheel is a kind of abrasive tool with a relatively large amount and range of use, so we are more concerned about its life. In addition to normal wear, there are other reasons that can lead to this phenomenon. Knowing the following factors, also Can prolong the service life.
1. The grinding wheel is made of abrasives and binders. Because the friction between the grinding wheel and the workpiece to be ground will generate a lot of heat, the binder is easily softened.
2. The grinding wheel will become a little dull after a long time of hard work. This is mainly due to the friction between the surface particles and the cutting tool during the work, which will gradually wear and become dull. When the grinding resistance exceeds the bonding force between the particles and the binder , the particles begin to fall off and are replaced by new sharp particles.
3. The ground metal powder and the binder are bonded and filled in the gap between the sand grains, and the grinding wheel is plugged. If you continue to work with this plugged grinding wheel, not only the work efficiency is quite low, but the grinding tool will also turn blue and cause annealing.
4. On the other hand, if the binder cannot firmly bond the particles, the grinding will make them fall off before the particles become pure, so the sand transmission line wears quickly and is easily deformed, so it needs to be trimmed frequently.
We dress the grinding wheel and return to normal grinding condition. The life of the grinding wheel is an important factor affecting the grinding effect, especially for profile grinding. The reasonable selection of the grinding wheel and the dressing accuracy of the grinding wheel will greatly affect the contour accuracy of the workpiece, and the grinding wheel needs to be dressed in time during grinding.
