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Effect of tool pin features on process response variables during friction stir welding of dissimilar aluminum alloys [electronic resource].

Published:
Washington, D.C. : United States. Dept. of Energy, 2015.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy
Physical Description:
pages 425-432 : digital, PDF file
Additional Creators:
Oak Ridge National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary:
In this article, the effect of pin features and orientation/placement of the materials on advancing side were investigated for friction stir welding (FSW) of dissimilar aluminum alloys AA2050 and AA6061. Pins for FSW were produced with a 2.12 mm pitch thread having three flats/flutes. Three sets of rotational speed/welding speed were used to perform a series of welds in a butt joint arrangement. The results show that, joint quality, process response variables and welding temperature are highly affected by pin features and material orientation in FSW. Defect free joints with effective material transportation in the weld nugget zone were obtained when welding was performed with AA2050 on the advancing side. The tool also encounters less in-plane reaction force for welding with 2050 on the advancing side. Pin with thread+3 flats produces quality welds at low rotational and travel speed regardless of the location of alloys on advancing or retreating side.
Report Numbers:
E 1.99:1222569
Subject(s):
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Note:
Published through SciTech Connect.
05/13/2015.
Science and Technology of Welding and Joining 20 5 ISSN 1362-1718 AM
Rabby, Reza; Tang, Wei [ORNL]; Reynolds, A.
Funding Information:
AC05-00OR22725
View MARC record | catkey: 24496402