RESEARCH ON HYDROFORMING TUBULAR PART WITH LARGE PERIMETER DIFFERENCE

金属学报(英文版), 2008, 21(2): 133-138.

^1, , ^2, , ^3, , ^4, , ^5,

1.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

2.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

3.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

4.School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China

5.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

基金项目: 国家自然科学基金(50525516)

RESEARCH ON HYDROFORMING TUBULAR PART WITH LARGE PERIMETER DIFFERENCE

X.S. Wang ^1, , S.J. Yuan ^2, , X.R. Huang ^3, , Y.X. Yao ^4, , Z.R. Wang ^5,

1.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

2.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

3.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

4.School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China

5.School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China

Keywords： Hydroforming

The tube hydroforming process for manufacturing the tubular part with large perimeter difference was studied by means of experiments and FE simulation. It is an asymmetrical one and the expansion ratio is 70 percent. The part is successfully hydroformed by applying the useful wrinkles to accumulate suffcient metal in the area with large expansion ratio. The thickness distribution is analyzed, and the maximum thinning ratio of the part is 21.6 percent. It is shown from the experiment and simulation results that the tubular part with large perimeter difference, long expansion area and asymmetrical shape can be obtained in one step, applying the useful wrinkles. Typical failure modes were analyzed.

参考文献

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[6]	S.J.Yuan;G.Liu;L.H.Lang .[J].Transactions of Nonferrous Metals Society of China,2003,13:152.
[7]	S.J.Yuan;X.S.Wang;G.Liu;Z.R.Wang .[J].Journal of Materials Processing Technology,2007,182:6.

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RESEARCH ON HYDROFORMING TUBULAR PART WITH LARGE PERIMETER DIFFERENCE

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