ねじ状工具による歯車の仕上げ転造 : 弾塑性有限要素法による歯形解析

概要

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In the previous paper, a simultaneous rolling experiment of both the tooth and fillet surfaces of spur gears was performed using several kinds of screw-shaped tools. In this paper, a simulation model which utilizes 3-D elastic-plastic finite-element method is proposed to investigate the deformation of work during rolling and to obtain some information on the optimum design of the tool. The influence coefficient method is employed to evaluate the elastic deformation of the tool during rolling. The analytical results agree well with the experimental ones. The elastic deformation of the tool can never be ignored when evaluating the amount of deformation of the work precisely. The amounts of stock rolled along the tooth surface are nearly constant. On the other hand, the amounts of stock rolled along the fillet are much larger than those of the tooth surface, since the tip corner radius of the tool is very small.
1994-06-25