難削材の研削加工の改善に関する研究 (第2報)

Abstract

With grinding fluid is a high jet pressure, heat quantity that its flow carry away increases. Therefore, to get fundamental information of practical development on grinding operation for difficult material to be cut by jet infusion of grinding fluids, effect of jet pressure is discussed by measurement values of grinding force, grinding temperature, residual stress, loading and concaveness of ground surface. The main results are as follows;(1) The jet infusion of tangential direction of grinding point is most effective for the reduction of grinding temperature, residual stress and concaveness of ground surface.(2) For improvement of thermal dominating factors in grinding accuracies, the dilution water of No. 1-No. 4 grinding fluids are more effective than group of #60 spindle oil.(3) The prevention of loading of grinding wheel becomes effective as high jet pressure. For example, the jet infusion in high pressure takes a way the loading of adhesive type.(4) The grinding temperature and conduction zone of it were dominated by a changes in the jet infusion pressure Pj.