Experimental Investigation and Characterization of Friction Stir Spot-Welded Dissimilar Aluminum Copper Metallic Lap Joints oleh Karunakaran Devarajan, Venkatachalapathy Vellaiyappan Sangli Karuppanan, Thirumalaikumarasamy Duraisamy, Srinivasa Kumar Bhavirisetty, Gundagani Laxmaiah, Pankaj Kumar Chauhan, Abdul Razak, Mohammad Asif, Emanoil Linul