Influence of 0 degree to the shoulder of the Friction Stir Welding on AA 6063 and AA 7075

摘要

The main aim of this research study 0 degrees to the shoulder to the welding of aluminum alloy rolled grade 6063 and 7075 were made by a friction stir welding. The variables welding speed to determine the tensile strength and macro-structure of specimens. The results were summarized. Variables to make major changes to the weld is incomplete and the defects in the weld. When the welding speed is not reasonable. Shoulder is available to heat the material to make two kinds of weakness. The top surface is not smooth still the scale. On both of materials have fin. Defects in the weld is still going on in the shoulder of tool to 0 degrees to provide maximum strength is 180 MPa at 1000 rpm with a welding speed 50 mm/min.