Transactions of Materials and Heat Treatment

Title：Ripple defect analysis and process optimization on half-cut trunk

Authors： Liu Xiaozhuan Zhu Liang

Unit： Dongfeng Peugeot Citroen Automobile Co. Ltd.

KeyWords： half-cut trunk CAE ripple defect work hardening projection of string height

ClassificationCode：TH162+.1

year,vol(issue):pagenumber：2017,42(11):50-54

Abstract：

By analyzing the apprearance defect of the half-cut trunk during die development, some rules of material forming were revealed. Because of the insufficient analysis of CAE, the root cause of ripple defect was explored by combining methods of plasticity mechanics, technology and CAE. The results show that the overlarge projection of the string height in the stamping direction is the source of deformation, and the difficulty for overcoming the deformation is work hardening. A targeted rectification plan is formulated by theoretical analysis, which not only eliminates the defect but also improves the utilization of material. Thus, the process optimization scheme is successfully verified in new projects, and the material utilization increases by 11% and the cost of the single part is reduced by RMB 7.93.

Funds：

作者简介：刘晓专（1979-），男，学士,工程师 E-mail：liuxiaozhuan@126.com 通讯作者：朱亮（1988-），男，硕士,工程师 E-mail: zhuliang@dpca.com.cn

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