Transactions of Materials and Heat Treatment

Title：Numerical simulation and mold structure optimization of extrusion for radiator profile with high-density fins

Authors： Li Hongbo Bai Yingbo Zhou Tianliang

Unit： Yanshan University

KeyWords： aluminum profile with high-density fins extrusion mold numerical simulation angle of guide plate size of work belt

ClassificationCode：TG376

year,vol(issue):pagenumber：2017,42(12):75-80

Abstract：

The radiator profile with high-density fins has complex cross-sectional geometry and large tongue ratio (cantilever: tooth spacing), and it is difficult to design the extrusion die and the success rate of mold test is also very low. For radiator aluminum profile with high-density fins produced by a company, its extrusion process was analyzed by simulation software Hyperxtrude. Then, the original mold design was utilized for simulation test to find out some possible problems, and the mold structure and parameters were optimized several times by combining actual tests with simulation results. Furthermore, the ratio of the maximum extrusion speed to the average velocity of the profile section was close to 1 by changing the angle of guide plate and the size of work belt. The results show that the optimized mold eliminates the existing problems, and a better profile with high-density fins is extruded.

Funds：

作者简介：李洪波（1963- ），男，博士，教授 E-mail：lhb@ysu.edu.cn

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