インボリュートウォームおよびインボリュートウォームホブの研削仕上について

抄録

This report treats the grinding practice of involute helicoidal worms and of relieved surfaces of involute worm hobs. Involute worm is ground with a plane grinding wheel, and we have theoretically correct one without calculating the setting angles of the wheel, by changing the setting for trial till the ground worm would have given pressure angle. Next, after discussing several relief grinding methods of hob, w explained on the practical but accurate grinding method.