Transactions of Materials and Heat Treatment

Title：Numerical simulation of forming and process optimization for forgings with inclined multi-hole key structure steel frame

Authors： Zhang Guishang Lei Weining Ding Lihong Qian Haifeng Shen Yu

Unit： Jiangsu University of Technology Laboratory for Technology and Equipment of High-performance Materials Green Forming

KeyWords：

ClassificationCode：TG316.3

year,vol(issue):pagenumber：2016,41(10):21-28

Abstract：

For folding defects in the edge of inclined hole grooves, unfilled zones in the four corners, large forming load and short die life during the forming process of inclined multi-hole key structure forgings for steel frame, a finishing method of optimizing blank shape was put forward based on the different forming effects in the final forging with different initial blank shapes. The forging process of key steel frame structure was simulated and analyzed by simulation software Deform-3D. Results show that a good forming quality of forgings and a reasonable mold load are gotten by the new technology. And with the golden section method, the forming load is taken as objective function, finishing parameters of the initial blank shape are optimized, which make the forming load reduce by 12.32% when the forging is full filled, so the die life is improved. Finally, results are basically consistent between the production experiment and simulation through the production practice. The quality of forging parts meets the product requirements without defects such as folding and incomplete filling. The number of die forging parts is increased and the working life of die is improved.

Funds：

国家自然科学基金资助项目(51275222)

作者简介：张桂尚(1989-)，男，硕士 E-mail：zhangguishang1@163.com; 通讯作者：雷卫宁(1963-)，男，博士，教授 E-mail：leiweining@jsut.edu.cn

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