ロール円筒研削加工層の残留応力に関する実験的研究

抄録

The residual stress of the work roll materials which arise in cylindcrical Plunge grinding process is discussed in this paper. Experimental study discribes on the investigation as to the influence of the dressing and grinding conditions; dressing speed, dressing depth of cut, peripheral speed of the work, infeed speed of grinding wheel and the coolants. The results are summarized as follows :
1) Increasing the dressing speed, dressing depth of cut, peripheral speed of the work and the compresive residual stress on machined surface decreased gradually. And the depth of its distribution in layer decreased.
2) In the coolant of 5% sodium nitrite water or emulsion type, the latter is higher valus than the former in the compresive residual stress on machined surface and the depth of its distribution in layer.
(3) The cause of the change of residual stress in layer is due to thermal residual stress as a function of grinding temperature.