NDLI: Microstructure and mechanical property differences between friction stir lap welded joints using rotating and stationary shoulders

Content Provider	Springer Nature Link
Author	Ji, Shude Li, Zhengwei Zhou, Zhenlu Zhang, Liguo
Copyright Year	2016
Abstract	In this study, the performances of traditional rotating shoulder and stationary shoulder were compared during friction stir lap welding (FSLW) of 2024-T4 aluminum alloy. Formations, distortions, microstructure, and mechanical properties of the lap joints using different shoulders were mainly discussed. Results showed that smooth joint surface without shoulder marks and flash can be obtained due to the sealed barrier effect and scraping effect of the stationary shoulder. Joint with smaller distortion, which resulted from lower heat input, can be obtained using the stationary shoulder. Hook and cold lap can be largely depressed using the stationary shoulder, and therefore better lap shear properties can be obtained. When the retreating side of the upper sheet bore the main load during the lap shear test, joints using stationary shoulder owned about 50 % higher lap shear failure loads than the traditional joints. Moreover, although using different configurations, joints using the stationary shoulder owned rather uniform lap shear failure loads.
Starting Page	3045
Ending Page	3053
Page Count	9
File Format	PDF
ISSN	02683768
Journal	The International Journal of Advanced Manufacturing Technology
Volume Number	90
Issue Number	9-12
e-ISSN	14333015
Language	English
Publisher	Springer London
Publisher Date	2016-10-27
Publisher Place	London
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Friction stir lap welding Stationary shoulder Hook Lap shear failure load Fracture mode Industrial and Production Engineering Media Management Mechanical Engineering Computer-Aided Engineering (CAD, CAE) and Design
Content Type	Text
Resource Type	Article
Subject	Industrial and Manufacturing Engineering Control and Systems Engineering Mechanical Engineering Computer Science Applications Software

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