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Effect of Tool Pin Geometries on Weld Quality of Al/Cu Dissimilar Friction Stir Welding
Dissimilar friction stir welding of 3-mm-thick AA 1100 aluminium alloy and commercially pure copper were welded by straight hexagonal tool and straight cylindrical tool to study the effect of pin geometry on varying traverse speeds. Studies include generation of avg. spindle, Z-force during welding, bead surface morphology and effect on material mixing and mechanical properties for varying traverse speed for different tool pin geometry. Welding have been performed with fixed rotational speed of 1000 rpm and traverse speed was varied from 1.2 to 2.1 mm/s. SH tool shows better material mixing and mechanical properties than SCT tool. SCT tool shows defect in welding at low traverse speed of 1.2 mm/s whereas SH tool shows maximum tensile strength at 1.8 mm/s. SCT tool also shows highest microhardness at 1.5 mm/s. Hard and brittle IMCs like Al2Cu, Al3Cu4, AlCu4, and Al4Cu9 were present in the stir zones for both tools.
Effect of Tool Pin Geometries on Weld Quality of Al/Cu Dissimilar Friction Stir Welding
Dissimilar friction stir welding of 3-mm-thick AA 1100 aluminium alloy and commercially pure copper were welded by straight hexagonal tool and straight cylindrical tool to study the effect of pin geometry on varying traverse speeds. Studies include generation of avg. spindle, Z-force during welding, bead surface morphology and effect on material mixing and mechanical properties for varying traverse speed for different tool pin geometry. Welding have been performed with fixed rotational speed of 1000 rpm and traverse speed was varied from 1.2 to 2.1 mm/s. SH tool shows better material mixing and mechanical properties than SCT tool. SCT tool shows defect in welding at low traverse speed of 1.2 mm/s whereas SH tool shows maximum tensile strength at 1.8 mm/s. SCT tool also shows highest microhardness at 1.5 mm/s. Hard and brittle IMCs like Al2Cu, Al3Cu4, AlCu4, and Al4Cu9 were present in the stir zones for both tools.
Effect of Tool Pin Geometries on Weld Quality of Al/Cu Dissimilar Friction Stir Welding
J. Inst. Eng. India Ser. D
Mandal, Abhishek (author) / Barma, John Deb (author) / Majumdar, Gautam (author)
Journal of The Institution of Engineers (India): Series D ; 105 ; 211-225
2024-04-01
15 pages
Article (Journal)
Electronic Resource
English
Effect of Tool Pin Geometries on Weld Quality of Al/Cu Dissimilar Friction Stir Welding
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