Reduction of residual stress and deformation in electron beam welding by using multiple beam technique

被引：2
|
作者：
Zhao H.-Y. [1 ]
Wang X. [1 ]
Wang X.-C. [2 ]
Lei Y.-P. [3 ]
机构：
[1] Department of Mechanical Engineering, Tsinghua University
[2] Beijing Aeronautical Manufacturing Technology Research Institute
[3] College of Material Science and Engineering, Beijing University of Technology
来源：
Frontiers of Materials Science in China | 2008年 / 2卷 / 1期
基金：
中国国家自然科学基金;
关键词：
Deformation; Electron beam welding (EBW); Finite element analysis (FEA); Multiple beam technique; Residual stress;
D O I：
10.1007/s11706-008-0012-x
中图分类号：
学科分类号：
摘要：
The electron beam could be controlled by magnetic field for fast deflection, in which way multi-beam could be produced by deflection technique. The multi-beams run simultaneously for material processing with different heat input and positions. Therefore, it is possible to adjust the thermal effects and optimize the process. In this paper, the generation of multi-beams in electron beam welding (EBW) was investigated, and the processes of EBW with multi-beams were also investigated by both the numerical simulation methods, i.e., finite element analysis (FEA), and the experiments. The result shows that the residual stress of EBW could be minimized by using the multiple beam technique, and at the same time the welding deformation could also be reduced with the optimized parameters. © 2008 Higher Education Press.
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页码：66 / 71
页数：5
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