针对5 mm厚AZ31镁合金搅拌摩擦焊接过程进行三维有限元传热分析,并推导搅拌摩擦焊接(FSW)产热的数学模型,计算FSW过程不同时刻和不同位置温度分布.计算结果表明:起焊时有一个预热作用,预热对搅拌摩擦焊接过程有利;搅拌摩擦焊接过程中准稳态时最高温度为460℃左右,低于镁合金的熔化温度,属于固相连接.温度场测量结果显示:计算结果与测量结果较吻合,说明温度场模型的建立基本符合搅拌摩擦焊接过程.
参考文献
| [1] | Thomas W M;Nicholas E D .Friction stir welding for the transportation industries[J].Materials & Design,1997,16(4/6):269. |
| [2] | Karl erik K;Bertil P .Friction stir welding process goes commercial[J].Welding Journal,1997,76(09):55. |
| [3] | C J Dawes .Causing a stir in welding circles[J].Sheet Metal Industries,1995(9):22,24-26-0. |
| [4] | Dawes C J;Thomas W M .Friction stir process welds aluminum alloys[J].Welding Journal,1996,75(03):41. |
| [5] | Frigaard O .A process model for friction stir welding of age hardening aluminum alloy[J].Metallurgical and Materials Transactions,2001,32(05):1189. |
| [6] | M. Song;R. Kovacevic .Thermal modeling of friction stir welding in a moving coordinate system and its validation[J].International Journal of Machine Tools & Manufacture: Design, research and application,2003(6):605-615. |
| [7] | M. Song;R. Kovacevic .Thermal modeling of friction stir welding in a moving coordinate system and its validation[J].International Journal of Machine Tools & Manufacture: Design, research and application,2003(6):605-615. |
| [8] | 汪建华,姚舜,魏良武,戚新海.搅拌摩擦焊接的传热和力学计算模型[J].焊接学报,2000(04):61-64. |
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%