The only way to form sheet metal parts is to connect them, and connect various parts according to a certain structural form and corresponding position to form a whole structure. Usually, mechanical connection methods such as biting, threading, and expansion are used, or welding and gluing methods are used. Welding is a non-removable connection, and other connections are removable connections. The following is the connection method and selection of the riveting of the sheet metal structure: the form of the riveting joint: lap, butt, corner, plate type riveting, turn hole riveting; a, lap method, characteristics and application: a plate or section steel is lapped on another steel plate for riveting, which can be used for load-bearing structures and used; b, butt method, characteristics and application: place two steel plates or section steel joints on the same plane, and use the cover plate as the connector to rivet the joints together. It can be used for load-bearing structures and adopts semi-round head solid rivets; c. Angular joint method, characteristics and application: connect two plates perpendicular to each other or at a certain angle, and use angle steel as a connector at the joint. There are two forms of single-sided and double-sided, which can be used for load-bearing structures, and use semi-round head solid rivets; d. Plate riveting method, characteristics and application: first lap the end face of the plate with the channel steel or press-formed parts, and then use rivets to connect them together; e. Flip hole riveting method, characteristics and application: Lap a plate that has punched holes on another plate that has been punched and turned over the edge of the hole, and then flange the hole and press it tightly; and use rivets on the side of the hole Riveting, mostly used for sealing structures, and using flat round head semi-hollow rivets;