2305 表面転造を施した高密度焼結金属歯車の荷重伝達能力(面圧強度と疲労強度,一般講演)

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This paper describes a study on the load bearing capacity of high density sintered metal gears with surface-densification. High density sintered metal gears were hobbed, and then surface-rolled. These gears were case-carburized after surface-rolling. The effect of surface-rolling on the surface property was examined by measuring porosities and hardness near surfaces of rolled gears. Running tests for these gears were performed, for the cases when these gears were used as a driver or follower. A failure mode and load bearing capacity of high density sintered metal gears and the effects of surface-rolling on the load bearing capacity of sintered metal gears were determined, and the results were compared with those of carburized wrought steel gears. The experimental results show that the load bearing capacity of high density sintered metal gear with surface-densification is comparable to that of a carburized wrought steel gear.
2010-04-18