平歯車の仕上転造における歯形誤差の発生機構(第2報) : 圧力角誤差の発生機構

概要

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In some cases, the tooth face of the driven side of rolled gear teeth shifts upward by rolling process and it forms plus pressure angle error. To-investigate the formation of the error, the tooth profiles of both driven and follower side and the plastic deformations of the center line of teeth are measured and analysed at several stages in the first cycle of rolling. It is revealed that the tooth is plastically elongated and bent to right and left by the applied load during rolling process, and the plastic elongation and deflection remain at addendum. They cause the pressure angle error. The measurements of profiles, elongation and deflection of teeth after 30 cycles of rolling demonstrate that the pressure angle error of gear finished by roll forming is the results of accumulation of the plastic elongation and deflection at each rolling cycle.
公益社団法人精密工学会の論文
1989-10-05