1. Spot welding is mainly used for body assembly, floor, door, side wall, rear wall, front axle and small parts.
2. Multi-point welding is used for body floor, truck compartment, door, hood and trunk, etc.
3. Projection welding and rolling projection welding are used for body parts, shock absorbers, valve stems, screws, nuts and small brackets.
4. Seam welding is used for roof cornice, shock absorber head, oil tank, muffler and oil pan.
5. Butt welding is used for rims, exhaust valves, knives, etc.
arc welding
1, co2 gas shielded welding is used for the welding of carriage, rear axle, frame, valve rod of shock absorber, cross beam, shell tube of rear axle, transmission shaft and hydraulic cylinder.
2. Argon arc welding is used for welding and repair welding of oil pan, aluminum alloy and other parts.
3. covered electrode arc welding is used for thick plate parts, such as brackets, spare tire racks and vehicle frames.
4. Submerged arc welding is used to weld the half-bridge shell, flange and pressure vessel of natural gas vehicles.
5. The galvanized sheet of automobile body is welded by argon or mixed gas shielded welding.
Special welding
1 Friction welding is used to weld the air doorways, rear cars, half shafts, steering rods and hand tools of foreign automobiles.
Electron beam welding is used to weld gears and rear axles.
Laser welding and cutting are used for blanking and trimming the body floor, gears and parts.
Ultrasonic welding is used to weld plastic parts.
Oxyacetylene welding is used for repair welding of body assembly.
Brazing is used to weld radiators, copper and steel parts and cemented carbide.
Laser welding is used to weld plates with different thicknesses, body welding, etc.