Clinching technology is widely used in the automobile and furniture industries. Shearing strength is an important criterion for evaluating the quality of clinched joints. Round and rectangular clinched joints are based on the shape of the tools. In this article, the shearing strength of round joints was designed and discussed. Two methods, namely heat treatment and press-join orientation, were presented. Different rolling directions for Al6061, Al5052, and Q235 sheets were connected to investigate the shearing strength of round joints at 90° and 180°. An electric furnace was used to heat the clinched joints of the Al6061 sheets to 430 °C, 450 °C, 530 °C, and 570 °C and obtain the optimal heat treatment temperature. Results proved that press-join orientation and solid-solution treatment affect shearing strength.