关键词: 汽车离合器衬套；多模块胀形工艺；冲锻复合工艺；有限元模拟

Abstract:

According to shape features of the automobile clutch hub under research, an entire process flow was designed, including blanking, deep-drawing, bulging, stamp-cold forging hybrid process, piercing and trimming. The bulging process was designed to form circumferential slots distributing around the clutch hub evenly and the stamp-cold forging hybrid process was designed to gain variable thickness. A particular emphasis was put on introducing bulging process and the hybrid process. FEM simulation software, DEFORM-3D, was employed for the simulation of the entire process. The simulation results demonstrate that the bulging process can form circumferential slots fully and precisely, and the stamping-cold forging hybrid process is successful in forming parts with variable thickness.

Key words: automobile clutch hub, bulging process with several separated outer dies, stamping-cold forging hybrid process, FEM simulation