Effect of the Impact Load on Joining Region of the Friction Stir Jointing for 7022 Aluminum Alloy

Hong Feng Wang; J.L. Wang; W.W. Song; Dun Wen Zuo; X.L. Duan

doi:10.4028/www.scientific.net/KEM.568.21

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HomeKey Engineering MaterialsKey Engineering Materials Vol. 568Effect of the Impact Load on Joining Region of the...

Effect of the Impact Load on Joining Region of the Friction Stir Jointing for 7022 Aluminum Alloy

Abstract:

The impact experiment of the joining workpiece of the friction stir jointing for 7022 aluminum alloy was made by the impact load experiment machine. The objective was studying the effect of the different joining process parameters of the FSJ on impact toughness. The results showed the impact toughness of the joining region was lower than that of the base metal when the rotation speed of the tool was 300rpm and the feed speed was 30 and 50mm•min-1, the impact toughness of the joining region of the other joining process parameters was higher than that of the base metal. The impact toughness of the joining region was the best when the rotation speed of the tool was 400rpm and the feed speed was 100mm•min-1. It is higher than 22.3% of the base metal. The impact fracture of the joining region was mainly dimple; only fracture edge appeared a small amount of the quasi cleavage. The fracture presented good toughness.

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Periodical:

Key Engineering Materials (Volume 568)

Pages:

21-24

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.568.21

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Online since:

July 2013

Authors:

Hong Feng Wang, J.L. Wang, W.W. Song, Dun Wen Zuo, X.L. Duan

Keywords:

7022 Aluminum Alloy, Fracture Morphology, Friction Stir Welding (FSW), Impact Toughness

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