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Joint Characteristics of Spot Friction Stir Welded 5052 Al Alloy Sheet

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Abstract:

The microstructure and mechanical properties of spot friction stir welded A 5052 alloy were investigated with insertion depth of welding tool. As the insertion depth of welding tool increased, the size of stirring zone increased and the thickness of upper sheet decreased. The value of shear load was the lowest at the shallowest insertion depth and increased to the highest value of 3.35 kN at a 1.6mm of insertion depth. An increase in the pin insertion depth beyond 1.6mm did not result in further increase in the lap shear load. Spot friction stir welded joints showed shear fracture mode at shallower insertion depths and fracture mode changed to plug fracture mode as the insertion depth was deeper.

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Periodical:

Advanced Materials Research (Volumes 15-17)

Pages:

345-350

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.15-17.345

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Online since:

February 2006

Authors:

Chang Yong Lee, Won Bae Lee, Yun Mo Yeon, Keun Song, Jeong Hoon Moon, Jung Gu Kim, Seung Boo Jung

Keywords:

AA 5052 Aluminium Alloy, Mechanical Property, Microstructure, Spot Friction Stir Welding

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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