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| 连续驱动摩擦焊接过程的三维与二维数值模拟对比分析 | |
| 引用本文： | 张全忠,张立文,刘伟伟,张兴国,祝文卉,曲伸.连续驱动摩擦焊接过程的三维与二维数值模拟对比分析[J].焊接学报,2006,27(10):105-108. |
| 作者姓名： | 张全忠 张立文 刘伟伟 张兴国 祝文卉 曲伸 |
| 作者单位： | 1. 大连理工大学,三束材料改性国家重点实验室,大连,116024;大连理工大学,材料科学与工程学院,大连,116024 2. 大连理工大学,材料科学与工程学院,大连,116024 3. 沈阳黎明航空发动机集团,沈阳,110043 |
| 摘 要： | 建立了连续驱动摩擦焊接过程的三维和二维刚塑性热力耦合模型.在三维模型中考虑了摩擦面上环向摩擦力对摩擦焊接过程的影响.计算了GH4169合金棒材连续驱动摩擦焊接过程的温度场、应力场及变形场.将三维模型计算结果和二维轴对称模型的计算结果及试验结果进行综合对比分析.研究发现,三维模型和二维轴对称模型的温度场计算结果相差不大,并且都和试验结果吻合得很好;但与二维轴对称模型相比,三维模型由于考虑了环向摩擦力,其等效应力计算值更大,也更合理,其飞边形状和轴向缩短量的计算结果更接近试验结果.三维模型能更好地模拟摩擦焊接过程. |
| 关 键 词： | 连续驱动摩擦焊 数值模拟 三维模型 二维轴对称模型 |
| 文章编号： | 0253-360X（2006）10-105-04 |
| 收稿时间： | 09 20 2005 12:00AM |
| 修稿时间： | 2005-09-20 |
Comparison of 3D and 2D numerical simulation of continuous-drive friction welding process |
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| ZHANG Quan-zhong,ZHANG Li-wen,LIU Wei-wei,ZHANG Xing-guo,QU Shen and ZHU Wen-hui.Comparison of 3D and 2D numerical simulation of continuous-drive friction welding process[J].Transactions of The China Welding Institution,2006,27(10):105-108. | |
| Authors: | ZHANG Quan-zhong ZHANG Li-wen LIU Wei-wei ZHANG Xing-guo QU Shen and ZHU Wen-hui |
| Affiliation: | State Key Laboratory of Material Surface Modification, Dalian University of Technology, Dalian 116024, China;School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China,State Key Laboratory of Material Surface Modification, Dalian University of Technology, Dalian 116024, China;School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China,School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China,State Key Laboratory of Material Surface Modification, Dalian University of Technology, Dalian 116024, China;School of Materials Science and Engineering, Dalian University of Technology, Dalian 116024, China,Shenyang Liming Aero-Engine Group Corporation, Shenyang 110043, China and Shenyang Liming Aero-Engine Group Corporation, Shenyang 110043, China |
| Abstract: | The 3D and 2D rigid-plastic thermo-mechanical coupled finite element models of continuous-drive friction welding process were developed. In 3D model, the tangential frictional-force in friction interface was considered. The transient temperature field, stress field and deformation field during the continuous-drive friction welding process of GH4169 rod are calculated respectively using these two models. The results of 3D and 2D simulation were compared. Meanwhile, both of the simulation results were compared with those of experiments. It's found that there is no appreciable difference in the calculated temperature between 3D and 2D simulation, and they both have a good agreement with the experimental results. But when compared to the results of 2D simulation, the calculated equivalent stress with 3D model is higher and more reliable,and the flash shape and axial shortening fit the experimental results better. So the 3D model can more accurately predict the friction welding process. |
| Keywords: | continuous-drive friction welding numerical simulation 3D model 2D axisymmetric model |
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