article · Materials Science and Technology
Friction Stir Spot Welding process (FSSW) is a distinct variant of Friction Stir Welding (FSW) that has been proven to be effective in various industrial applications. In this paper, FSSW joint on overlapped 3-mm-thick AA2017-T351 sheets aluminum alloy, welded with 1500 rpm as tool rotational speed, 5 mm/min plunge rate, 15 s as dwell time and 5.2 mm plunge depth, was investigated. Microstructural observations, microhardness measurements, tensile/shear tests and fractography of the spot weld were conducted. Results showed that thermal evolution and plastic deformation had a remarkable effect on the grain structure (the hardness is 124 HV at BM, decreases to 109 HV at HAZ/TMAZ and reaches 135 HV at SZ) and size (from typically 15 µm in BM to mainly under 2 µm in the SZ). The fully bonded region width was nearly 150 µm and the maximum tensile/shear load was 2.6 kN. Two types of fracture modes were analyzed following the tensile shear test, namely pull-out nugget and shear failure fracture mode.
This page summarises published work. The authoritative version sits with the publisher.
DOI: 10.1177/02670836261445793
Is something wrong with this record? Report it or request removal.
Discussion
Have you built on this work, tried to replicate it, or seen it applied in practice? Share what you know. Verified researchers and MARATTO™ domain experts can open a discussion, and any member can reply. Contributions are reviewed before they appear.
No discussion yet. Open the first thread.
New to MARATTO™? Create a free account.
