円すい形インボリュート歯車の研究 : 第6報, ハードギヤフィニッシャ用の新しいタイプのマスタギヤの開発

First a design and production system of a new type of master gears of Hard Gear Finisher is developed. On this system, a pair of master gears can be designed and made more easily than the conventional master gears. Next the new master gears are designed and made for trial. Finally grinding tests are performed by using the new master gears on Hurth's Hard Gear Finisher. The works ground by using the new master gears have almost the same accuracy as the works ground by using the conventional master gears. Moreover, the new master gears have the ability to be able to modify the tooth surface of the work slightly. As a result, it is proved that the new master gears have a good performance.