The types of sheet metal assembly mainly include the following:
Bolt connection: Two or more sheet metal parts are fixed together by bolts and nuts. Suitable for occasions that need frequent disassembly. The principle of bolt connection includes opening a threaded hole in one of the two connected parts and a corresponding through hole in the other part, and finally connecting them with screws; or opening through holes in both parts and connecting them with bolts and nuts. The advantage is that it is easy to disassemble and assemble multiple times, but the disadvantages are that there are many quality problems, a large number of screws, high installation costs and low efficiency.
Riveting: Use rivets to fix two sheet metal parts together. Riveting has excellent shear resistance and is particularly suitable for fixed occasions that do not require disassembly. The advantages include no need to add additional parts, high riveting strength and high production efficiency. The disadvantages are that the quality is difficult to guarantee and it cannot be disassembled after connection.
Welding: Use heat energy to melt metal and achieve connection. Welding methods include spot welding, argon arc welding, carbon dioxide shielded welding, etc. The advantages are tight connection and economic efficiency, and the disadvantage is that it is difficult to disassemble once welding is completed.
Snap-on connection: A fast connection between parts is achieved by designing a specific snap-on structure. Suitable for the assembly of light sheet metal parts. Snap-on connection generally serves as a pre-positioning function and cannot be directly fastened.
Bonding: Two sheet metal parts are fixed together by adhesive. The advantage is that the installation is easy, and the disadvantage is that the quality and applicability of the adhesive need special attention.
Pin connection: Two sheet metal parts are fixed together by pins. Suitable for occasions where a stable connection is required, but disassembly is more difficult.