Transactions of Materials and Heat Treatment

Title：Technology and die design for the deep drawing of the reflector of light vehicle headlamp reflector

Authors： DENG Yu-shan~(1) LI Ming-zhe~(1) FU Wen-zhi~(1) CAI Zhong-yi~(1) SUN Gang~(1) YAO Xiao-jing~(2) (1.Rolling Forging Technology Institute Jilin University Changchun Jilin 130025 China 2.Training Center FAW Chuangchun Jilin 130025 China)

Unit：

KeyWords： deep drawing reflector die drawbead

ClassificationCode：TG386.32

year,vol(issue):pagenumber：2005,30(5):24-26

Abstract：

Light-vehicle headlamp reflector is constituted of parabolas to3-D surface,which is a deep drawing workpiece.The wrinkle and crack are easy to be formed during the forming process.For settling down these disfigurements,the technology and forming methods of the reflector deep drawing are analyzed in this paper.The variability of drawbead parameters has been mainly considered in designing die.Therefore,based on the theoretical calculation,the experimental methods of gradual heightening drawbead are adopted to probe into the influence of drawbead parameters on forming result.So that the best real values are found which validate that the die structure is reasonable in practice,the drawbead adjustment is simple and the die debugging cycle is short.

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Reference：

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[2]中国机械工程学会,中国模具设计大典编委会.中国模具设计大典[M].南昌:江西科学技术出版社,2003.
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