基于所建立的搅拌摩擦焊接过程热输入模型和热力耦合有限元分析模型，对带圆孔铝合金板的搅拌摩擦焊接顺序进行了有限元研究，并得到了焊接过程中不同焊接方案下的温度、瞬态应力变化曲线以及焊后残余变形。通过综合比较可以看出，从两边向中间焊的方案2优于从中间向两边焊的方案1和从左向右的顺序焊接的方案3。此外，有限元模型求解结果和实验测量数据具有相当好的吻合。
In this paper,based on the built coupled thermo-mechanical model of friction stir welding process and the heat input model, friction stir welding sequence of aluminum alloy sheets with hole was researched by finite element method, and the curve of temperature variation and transient stress variation was obtained under different weld sequence during welding process, as well as the residual deformation after welded. By comprehensive comparation of these results we could know that sequence 2 was superior to sequence 1 and sequence 3. Moreo- ver, the FEM results were agreed much with the experimental results.
参考文献
| [1] | Nandan R;DebRoy T;Bhadeshia H K D H .[J].Process in Materials Science,2008,53:980-1023. |
| [2] | Schmidt H B;Hattel J H .[J].Scripta Materialia,2008,58:332-337. |
| [3] | Chao Y J;Qi X;Tang W .[J].Journal of ManufacturingScience and Engineering,2003,125:138-145. |
| [4] | Nandan R;Roy G G;Lienert T J et al.[J].,2007,55:883-895. |
| [5] | Colegrove P A;Shercliff H R .[J].Journal of MaterialsProcessing Technology,2005,169:320-327. |
| [6] | Sutton M A;Yang B;Reynolds A P et al.[J].Materi-als Science and Engineering,2002,A323:160-166. |
| [7] | 王磊,朱建军.摩擦搅拌焊接过程热力耦合数值模拟[J].系统仿真学报,2011(05):881-885. |
| [8] | 张昭,别俊.搅拌摩擦焊接过程数值仿真的完全热力耦合模型[J].中国机械工程,2008(10):1240-1245. |
| [9] | 汪洪峰,左敦稳,邵定林,李光,董春林.工艺参数对搅拌摩擦焊7022铝合金残余应力及耐磨耐蚀性能的影响[J].航空材料学报,2011(01):41-47. |
| [10] | 周鹏展;贺地球;舒霞云 等.[J].工业技术,2005,4:33-35. |
| [11] | 汪洪峰,左敦稳,王珉,李光,董春林.厚板7022铝合金搅拌摩擦焊接实验研究[J].功能材料,2010(11):2029-2033. |
| [12] | 赵伟兴 .[J].焊工之友,2008,37(01):61-62. |
| [13] | 王成强 .200km/h高速动车组焊接构架侧梁焊接顺序优化研究[D].大连交通大学,2007. |
| [14] | 鄢东洋,史清宇,吴爱萍,Juergen Silvanus,刘园,张增磊.铝合金薄板搅拌摩擦焊接残余变形的数值分析[J].金属学报,2009(02):183-188. |
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