Analysis of mechanical properties of 6010-T6 aluminum alloy without Tool Tilt Angle friction stir welding

The friction stir welding (FSW) of 6010-T6 aluminum alloy sheet with 10 mm thickness was carried out with tool tilt angle of 0°. The process parameters that could realize effective joint were given. The performance of the weld zone was tested. The experimental results showed that the effective FSW could be achieved under the process parameters of rotation speed of 400–600 rpm and welding speed of 200–400 mm/min. The tensile strength of the weld zone was the best under the rotation speed of 600 rpm and welding speed of 400 mm/min, which was 86.4% of the base metal, under which process the microhardness of the nugget zone was higher than that under other processes, and the grain was significantly finer than that of the base metal zone. This paper presents the technological breakthrough of the FSW of 10 mm thickness aluminum alloy with tool tilt angle of 0°.