Method for reinforcing mortise and tenon structure in cold-bending right-angle refined steel square tube cavity

The invention discloses a method for reinforcing a mortise and tenon structure in a cold-bending right-angle refined steel square tube cavity, and belongs to the technical field of square tube manufacturing. The method comprises the following steps: (1) rabbet cutting, (2) tenon cutting, (3) rolling treatment and (4) welding treatment. According to the method for reinforcing the mortise and tenon structure in the cold-bending right-angle refined steel square cavity, compared with an existing rolling technology, the mortise and tenon connection, high-precision cold-bending rolling equipment and a laser rapid through welding technology are adopted in the method, the strength of a finished product is high, the appearance is attractive, the precision can be guaranteed, the beautiful appearance can be guaranteed, and compared with the existing rolling technology, the specifications of finished products are richer, and all size requirements of designers can be met. According to a mortise and tenon sealing steel pla