|About this Abstract
||2017 TMS Annual Meeting & Exhibition
||Friction Stir Welding and Processing IX
||Effect of Process Parameters on the Residual Stress Distribution in Stationary Shoulder T-Joints
||Tianzhu Sun, Matt Roy, Phil Withers, Phil Prangnell
|On-Site Speaker (Planned)
An advanced variant of the FSW process, stationary shoulder fillet welding has great potential for ‘T’ joint applications in the aerospace industry. In contrast to conventional FSW, the process is facilitated by a profiled stationary shoulder that generates little heat and involves two overlapping weld passes. To date there have been few publications on this technique and little is known about the residual stress distribution created, which is an important consideration of aerospace applications. Of particular interest is the effect of weld sequencing in the production of T-joints with two fillet passes from either side of a flange. In this paper, residual stress distributions in AA7010 T-joints have been studied by neutron diffraction and the contour method, two complementary residual stress measurement techniques, and related to the welding parameters. The corresponding weld distortion, joint mechanical properties, and the evolution of the microstructure across the weld zones are also discussed.
||Planned: Stand-alone book in which only your symposium’s papers would appear (indicate title in comments section below)