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Friction Stir Spot Welding of AA5052 Aluminum Alloy and C11000 Copper Lap Joint
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 Title & Authors
Friction Stir Spot Welding of AA5052 Aluminum Alloy and C11000 Copper Lap Joint
Prasomthong, Suriya; Sangsiri, Pradit; Kimapong, Kittipong;
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 Abstract
The article aims to apply a friction stir spot welding for producing the lap joint between AA5052 aluminum alloy and C11000 copper alloy. The dimension of the materials was 100 mm in length, 30 mm in width and 1.0 mm in thickness. The copper plate was set overlap the aluminum plate by 30 mm. The welding parameter was the rotating speed of 2500-4000 rpm, the pin inserting rate of 2-8 mm/min and the holding time of 6 sec. The mechanical properties test and the microstructure investigation were performed to evaluate the lap joint quality. The summarized results are as follows. The friction stir spot welding could produce effectively the lap joint between AA5052 and C11000 copper. Increase of the rotating speed and holding time directly affected to decrease the tensile shear strength of the lap joint. The optimized welding parameters in this study that indicated the tensile shear strength of 864 N was the rotating speed of 3500 rpm, the pin inserting rate of 6 mm/min and the holding time of 4sec. The experimental results also showed that the hardness of the weld metal was lower than that of the base materials.
 Keywords
friction stir spot welding;copper;aluminum;lap joint;strength;
 Language
English
 Cited by
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