Lap Joints of 6061 Al Alloys by Friction Stir Welding

2nd International Conference on Materials Engineering and Nanotechnology

材料科学;物理学

Tashkandi, M.A.^1

Department of Mechanical Engineering, College of Engineering, Northern Border University, P.O. Box 1321, Arar

91431, Saudi Arabia^1

关键词: 6061 Al alloy;    6061 aluminium alloy;    Base metals;    Pin length;    Rotational speed;    Welding parameters;    Welding speed;    Welding zones;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/205/1/012005/pdf
DOI  :  10.1088/1757-899X/205/1/012005

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Lap joints of 6061 aluminium alloys were obtained using friction stir welding. The welding parameters used are: rotational speed, welding speed and pin Length. There were two levels of each factor involved. Rotational speed levels were 900 and 1120 rpm, welding speed levels were 1 and 1.5 mm/sec and pin length levels were 4.5 and 5.5 mm. Successful lap joints were produced for the different combinations of the above welding parameters. The joints quality tested under tensile testing and the microstructure of the welding zone were studied. Fracture mostly occurred in the base metal for most lap-shear welded joints. The exception was joints with welding parameters as follows: rotational speed 900 rpm, the welding speed 1.5 mm/sec and pin length 4.5 mm. In this case, the fracture occurred in the welding zone.