Transactions of Materials and Heat Treatment

Title：Research on finite element simulation of hollow spinning for tubular part with concave arc generatrix

Authors： Wu Hao Jia Zhen Han Zhiren Qi Xingjiang Gao Tiejun

Unit： Shenyang Aerospace University

KeyWords： tubular part with concave arc generatrix roller path hollow spinning single pass forming multi-pass forming

ClassificationCode：TG376

year,vol(issue):pagenumber：2016,41(2):84-90

Abstract：

It is difficult to form the tubular part with concave arc generatrix by hollow spinning. The finite element simulation method was adopted to forecast the forming process of the tubular part with concave arc generatrix, and a theoretical basis for subsequent experiments and production was obtained. Firstly, the motion relationship equations of single pass concave arc roller were deduced theoretically. Then the equations were used as boundary conditions to simulate. Three kinds of spinning methods were proposed. Comparing the simulation results with analysis, it shows that the equilibrium of the free end metal flow of the tubular blank can be controlled by the dynamic mandrel. Due to the smaller relative radial feed in each pass, multi-pass spinning contributes to the wrinkles control of the arc portion and better thickness uniformity. And the ovalization of the cross section on the arc top is also smaller by multi-pass spinning.

Funds：

航空科学基金(2014ZE54024)；沈阳航空航天大学大学生创新训练计划项目(DCX143409)

吴豪（1992-），男，本科贾震（1980-），男，博士，讲师

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