Preform Design in forging of Spline of Side Gear by the FEM

강소성 유한요소법의 역추적기법을 활용한 차동사이드기어의 스플라인 성형에 관한 연구

Differential side bevel gears have been produced by machining process, but recently cold forging process for the bevel gear is under development in domestic industry. This study presents the possibility to form not only bevel gear but also spline gear at the same time using the experiment and numerical analysis. The preform shape is designed to form both bevel gear and spline gear simultaneously by the backward tracing scheme of the rigid-plastic finite element method(FEM). The experimental results confirm that the numerically-designed preform is satisfactory to form both bevel gear and spline gear. It is noted that the backward tracing scheme is helpful in designing preforms.