研削機構に及ぼす砥粒-工作物の弾塑性的挙動の影響

抄録

In grinding operation, grain cutting edges as tool are supported elastically by bond, and workpiece to be ground is an elastic-plastic body, so that, at the grain cutting edge-workpiece contact zone, elastic as well as plastic behaviors exist such as elastic displacement of grain cutting edge position, local elastic deformation of grain cutting edge, elastic deformation and recovery of workpiece, and pile up of workpiece material or the side faces of cut groove, and these behaviors affect grinding force, finished surface roughness, residual depth of cut, and so on. The paper describes a simulation of grinding process including the elastic and plastic behaviors, and some discussions are made on the results obtained by the simulation. Taking account of the elastic and plastic behaviors in grinding operation can give a satisfactory explanation to the experimental results of grinding force and ground surface roughness.