EFFECT OF CUTTER PERFORMANCE ON FINISHED TOOTH FORM IN GEAR SHAVING

A computer program has been developed to simulate a gear shaving proce ss. The present paper describes a new cutting model of a shaving proce ss so as to incorporate the effect of a cutting performance of a shavi ng cutter into the simulation program. This cutting model is construct ed on the assumption that an excess depth of cut over a certain criter ion yields a material removal from a tooth flank of work gear. In addi tion, the criterion has no definite value, but its value shows the nor mal distribution. The mean value of the distribution can define a char acteristic of cutting performance of the shaving cutter. A small mean value means that even small depth of cut can cause a stock removal. In other words, the cutter has a good cutting performance. After reliabi lity being confirmed, computer simulations reveal an effect of the cut ter performance on shaved tooth form. As a result, a pressure angle er ror on the shaved tooth profile becomes remarkable as the cutter perfo rmance becomes worse. Therefore, the developed computer simulation pro gram is useful for the design of the shaving cutter and judgment of to ol life expiring.