A mathematical model describing the behavior of metal inert gas(MIG)welding is formulated in the paper.By means of numerical simulation,the influence of surfaceactive elements on fluid flow of MIG weldpool is studied.The calculation results show that by adding surface-active elements,the fluid flow behavior is drastically changed and the flow fluid flows from lower to upper in vertical direction at the rear of weldpool(w＞0).The physical phenomenon is explained from the viewpoint of fluid flow behavior of weldpool that the properties of weld metal is greatly improved and the content of diffused hydrogen is reduced,thus providing a basis for developing new welding materials.
参考文献
| [1] | W Y Zhang.Welding Metallurgy[M].北京:机械工业出版社,1997:155. |
| [2] | B F Zhang;Y M Zhao;Y J Zeng;W.S.Li,S.H.Qi and Y.H.Zhang.[J].Journal of Tianjin University,1986(02):38. |
| [3] | C S WuandJ S Sun .[J].Proceedings of the Institution of Mechanical Engineers Part B Journal of Engineering Manufacture,1998,212B:525. |
| [4] | 孙俊生,武传松.电磁力及其对MIG焊接熔池流场的影响[J].物理学报,2001(02):209-216. |
| [5] | C S WuandL Dron .[J].Acta Metall Sin,1997,33:774. |
| [6] | C R HeipleandP Burgardt .[J].Welding Journal,1985,64(06):159S. |
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%