Abstract
In the ultra-smoothness vertical grinding method developed previously, the wheel surface conditions are found to influence largely on ground workpiece surface. Thus the building of wheel surface forming technique is important. In the 1st report, from the point of view, the change of ground workpiece surface and wheel surface with grinding process of silicon carbide ceramic by using #140 resin bonded diamond wheel is examined and discussed. In the report following the 1st report, first of all, the change of macroscopic wheel shape in addition to surface conditions such as cutting edge wear, depth of chip pocket and so on with grinding time is examined. It is cleared that the wheel wear begins to occur at wheel outside edge and proceeds to wheel inside. Wheel life is ascertained to occur due to the contact of workpiece with bond, which is caused from the radial wheel wear. On the basis of the results, trued wheel shape for low rate of radial wheel wear is discussed. The sharp edge in the wheel outside shape is found to be effective for long wheel life in grinding of silicon carbide ceramic.
