Transactions of Materials and Heat Treatment

Title：Structural analysis and optimization of the cold extrusion mould of star sleeve workpiece

Authors： WEI Zhi-gang~1 TANG Wen-cheng~1 LIU De-fang~2 (1.Department of Mechanical Engineering Southeast University Nanjing Jiangsu 210096 China 2.Yancheng Institute of Technology Yancheng Jiangsu 224003 China)

Unit：

KeyWords： mould FEA structural optimization

ClassificationCode：TG375.41

year,vol(issue):pagenumber：2006,31(4):59-64

Abstract：

The course of cold extrusion of the star sleeve workpiece is simulated by the 3-D elasto-plastic coupled thermal-mechanical FEA method,using the advanced nonlinear FEA analysis software-MSC.MARC.The stress distribution on the mould is obtained;Then the result is analyzed and a method to reduce the concentration of the stress is found,and so the structure of the mould is modified;The structure is analyzed again based on the new model.The result make a good agreement to the practice and the serve life of the mould is prolonged obviously.This article plays a guiding role on the aspects of simulating the cold extrusion,controlling of the technical parameter and improving the life of the mould.

Funds：

江苏省科技攻关资助项目(农业,苏北星火带部分)(BE2004372)

Reference：

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