为揭示差厚拼焊管内高压成形中的焊缝移动规律,采用有限元数值模拟分析了焊缝移动随内压的变化规律,研究了厚度比、长度比、摩擦系数和硬化指数等因素对焊缝移动的影响.研究表明:差厚拼焊管内高压成形存在焊缝移动,并导致薄管靠近焊缝处出现减薄峰值;焊缝移动随厚度比和长度比的增大而增大,随摩擦系数和硬化指数的增大而减小;减小焊缝移动的合理拼焊管结构为厚度比小于2.0,长度比小于3.5.
参考文献
| [1] | S.J. Yuan;G. Liu;X.R. Huang .Hydroforming of typical hollow components[J].Journal of Materials Processing Technology,2004(1/3):203-207. |
| [2] | YUAN Shijian;LIU Gang;LANG Lihui .Mumerical simulation of wrinkling in hydroforming of aluminum alloy tubes[J].Transactions of Nonferrous Metals Society of China,2003,13(Z1):152-156. |
| [3] | Muammer Koc;Taylan Altan .An overall review of the tube hydroforming (THF) technology[J].Journal of Materials Processing Technology,2001(3):384-393. |
| [4] | S. Yuan;X. Wang;G. Liu .Control and use of wrinkles in tube hydroforming[J].Journal of Materials Processing Technology,2007(26):6-11. |
| [5] | Gang Liu;Shijian Yuan;Guannan Chu .FEA on deformation behavior of tailor-welded tube in hydroforming[J].Journal of Materials Processing Technology,2007(0):287-291. |
| [6] | R. M. Natal Jorge;A. P. Roque;R. A. F. Valente;M. P. L. Parente;A. A. Fernandas .Study of hydroformed tailor-welded tubular parts with dissimilar thickness[J].Journal of Materials Processing Technology,2007(1/3):363-371. |
| [7] | S. M. Chan;L. C. Chan;T. C. Lee .Tailor-welded blanks of different thickness ratios effects on forming limit diagrams[J].Journal of Materials Processing Technology,2003(1/3):95-101. |
| [8] | Scott D. Raymond;Peter M. Wild;Christopher J. Bayley .On modeling of the weld line in finite element analyses of tailor-welded blank forming operations[J].Journal of Materials Processing Technology,2004(1):28-37. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%