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The document discusses friction stir welding of dissimilar aluminum alloy and copper joints. It investigates the microstructure and mechanical properties of the joints produced. Sound joints were obtained at a rotational speed of 1050 rpm and welding speed of 30 mm/min. The tensile strength of the joint was 148 MPa, higher than the aluminum alloy. Intermetallic compounds like Al4Cu9 formed in the joints. Crystal defects and grain refinement strengthened the joints.

Author

larry

Language

EN