Investigation on Free-Wheel Hub for Starter Rotary Forming Process and Die Design Based on Numerical Simulation

Abstract

Free-wheel hub plays an important role in automobile starter system, so there is higher quality requirement on geometry and precision. In order to improve the efficiency and comprehensive functions of the part, according to the features of the lower part with involute small module internal helical spline, the rotary forming technology was put forward, and the forming process was simulated by the DEFORM-3D software. In the die design, the use of rotary punch made the process of rotary forming achieved in common hydraulic press, and can serve as an important reference to the design of forming process and die structure of similar part.