Influence of process parameters on axial force and transverse force of robot friction stir welding

被引：3
|
作者：
Chen S.-J. [1 ]
Kong D.-B. [1 ]
Dong J.-T. [2 ]
Jiang X.-Q. [1 ]
Yuan T. [1 ]
机构：
[1] Institute of Intelligent Forming Equipment and System, Faculty of Materials and Manufacturing, Beijing University of Technology, Beijing
[2] Capital Aerospace Machinery Company, Beijing
来源：
Zhongguo Youse Jinshu Xuebao/Chinese Journal of Nonferrous Metals | 2021年 / 31卷 / 04期
关键词：
6061 aluminum alloy; Axial force; Mechanical properties; Robot friction stir welding;
D O I：
10.11817/j.ysxb.1004.0609.2021-36598
中图分类号：
学科分类号：
摘要：
This article focuses on the 6061-T6 aluminum alloy robot friction stir welding (RFSW). Firstly, a six-dimensional force sensor was installed between the end of the KUKA robot and the friction stir welding electric spindle to build a six-dimensional force sensor data acquisition system. Secondly, the 5 mm 6061-T6 aluminum alloy was welded at different process parameters. During the welding process, the axial force and forward resistance of the stirring head were monitored in real time. After welding, the cross section of the weld was observed and analyzed. The section was subjected to tensile test and hardness measurement to analyze the influence of axial force and forward resistance on the microstructure and mechanical properties of the weld. The results show that the speed of the stirring head is between 800 and 3400 r/min, and the speed of the stirring head has little effect on the mechanical properties of the weld; the welding speed is between 60 and 360 mm/min, and the mechanical properties of the weld are good. During the welding process, the axial force of the stirring pin is the largest in the pressing stage, which reaches about 5000 N. When the welding stage is stable, the axial force is about 3600 N, and the forward resistance of the welding stage is the largest, reaching about -550 N. In the welding process, the performance of the weld is good when the ratio of axial force/forward resistance is about -6.5. © 2021, Science Press. All right reserved.
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页码：956 / 967
页数：11
相关论文
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