Optimization of Cold Forging Process and Design of Precision Progressive Die for Cam

Abstract

This paper analyzes the forming process methods of cam in CPU socket to control its open and close, and develop a set of progressive die with unique structures. The whole process is pierce, notch, the first forging forming, the second pierce (the second pilot hole), the second forging forming (sizing), impact forging forming, and trimming. The carrying way of strip material was created based on forging scheme of MOCK-UP and the forging process of cam was simulated by finite element analysis. The second pierce pilot hole that newly designed is applied, which relief the deformation of pilot holes caused by severe metal flow. Compared with the traditional single operation dies, the precision progressive die based on cold forging process were proved through the practical production to be high economical efficiency, which could be the references for developing the cold forging process of producing the similar products.