The Selection Principle Of Grinding Wheel Hardness Is For Reference

a. Hard grinding wheel shall be selected for grinding soft materials, and soft grinding wheel shall be selected for grinding hard materials;

b. When grinding soft and tough nonferrous metals, the hardness should be soft;

c. Soft grinding wheel shall be selected for grinding materials with poor thermal conductivity;

d. The hardness of the grinding wheel should be softer when the end grinding is better than the circumferential grinding;

e. Under the same grinding conditions, the hardness of resin bonded grinding wheel is 1 ~ 2 small grades higher than that of ceramic bonded grinding wheel;

f. When the rotation speed of the grinding wheel is high, the hardness of the grinding wheel can be soft 1 ~ 2 small grades;

g. The hardness of grinding wheel with coolant is 1 ~ 2 small grades higher than that of dry grinding.