心なしベルト研削の加工能率

ベルト研削に関する研究(第7報)

抄録

The machining efficiency on centerless belt grinding is analyzed experimentally by using a constant force centerless belt grinding apparatus. Theoretical analysis is also performed. In consequence of the analyses it is found that the machining efficiency is proportional to the grinding factor which shows the performance of an abrasive belt, to the grinding speed, and also to the normal component of the grinding force acting at the belt-workpiece interface. It is also found that the machining efficiency is not affected by the speed of a control wheel. The normal component of the grinding force is a function of applied load, weight of workpiece, diameters of workpiece, contact wheel and control wheel, height of workpiece center, angle of a inclined face of the workplate, frictional coefficient between the workpiece and the workplate, and component ratio of grinding force. The grinding factor decreases with the grinding time, and the value of the normal component of the grinding force could be increased or decreased by the grinding conditions. Therefore, there would be a possibility to maintain the machining efficiency at a uniform level without changing the grinding conditions, if the grinding condition was selected properly.