(One). Effect of grinding method on grinding conditions:
1. The grinding allowance is too large.
2. Reasonable grinding parameter setting, reasonable choice of grinding amount. Burns occur when the amount of grinding is small, and the longitudinal feed rate should be increased: burns occur when the amount of grinding is large, and the feed rate should be reduced to increase the number of grinding times.
3. The workpiece speed is set reasonably, too high or too low.
4. The magnetic force is insufficient, the workpiece stops rotating and adjusts the magnetic force.
5. The spindle of the low price disc for metal is large and the main shaft is overhauled.
6. Strictly control the gap between the cutting disc drive system and the cutting disc spindle, and the cutting disc drive belt is tightly adjusted.
7. Is the torque of the workpiece and the cutting disc motor sufficient?
(B), the choice of cutting disc: (see the selection of cutting discs)
1. The material of the cutting disc is not properly selected. The selection of the cutting disc is the most basic cutting disc abrasive and the grinding of the workpiece skin is reasonable.
2. The size of the cutting disc is fine, and the particle size of the cutting disc is selected under the condition that the roughness is satisfied.
3. The hardness of the cutting disc is hard, and the cutting disc with the soft point is selected to improve the self-sharpness of the cutting disc.
4. The cutting disc tissue is too small (tight), choose a large, loose cutting disc; to facilitate chip removal and reduce the incidence of burns. In some cases, it may be considered to use an atmospheric hole cutting disc.
5. Special treatment of the cutting disc.
6. The diameter of the cutting disc is too large, and the increased grinding area will cause burns. According to the condition of the workpiece, the cutting disc with a smaller diameter of the cutting disc can be selected, especially suitable for internal grinding.
7. Slot the surface of the cutting disc. This grinding method is called “intermittent grinding”, which can reduce heat generation and increase heat dissipation. It is also beneficial for full chip removal.
8. The cutting disc is passivated and the cutting disc is trimmed in time.
9. The balance of the cutting disc is not good. The cutting disc must be carefully balanced so that the cutting disc is in good balance during work.
10. The cutting disc maintains a constant sharpness.
(3) The problem of trimming the cutting disc:
1. The cutting disc is passivated and the 14 inches cutting disc is trimmed in time.
2. The trimming of the cutting disc is too fine, which reduces the cutting performance of the micro-blade; under the process requirements of satisfying the roughness, the cutting disc is trimmed as rough as possible.
3. The cutting disc dresser is not sharp, and it is trimmed or trimmed and replaced with the other side of the disc dresser.
4. You can trim the corners of the cutting disc.
5. The diamond support that trims the cutting disc must be secure.