The welding performance of aluminum profiles
is good. For some aluminum profile products that are not convenient to be connected with corner code, such as aluminum alloy trays and special frame products, only welding can be used to connect each profile. What are the welding methods of aluminum profiles? Let's find out today:
1. Argon arc welding
This is the most common form of welding, and we often see traces of argon arc welding on other metals. Argon arc welding is also divided into tungsten argon arc welding and MIG welding. Tungsten argon arc welding is generally used for thin materials, and MIG welding is suitable for thick materials.
2. Spot welding
Spot welding, as the name implies, is to form solder joints between welding materials. Spot welding requires relatively high requirements for the schweisser and requires instantaneous high temperature heating. Before welding, it is necessary to remove dust, grease, layers, oxide film and other impurities on the surface of aluminum profile processing. After the solidification of the solder joint, the electrode pressure should be maintained for a period of time. If the electrode pressure is kept too short, it is easy to appear bubbles, cracks and other defects.
A-tig welding can greatly improve the penetration depth of aluminum profile weld, reduce welding deformation, improve the yield of finished products, and has a relatively wide application prospect.
4. Friction stir welding
Friction stir welding (FSW) is a solid-state joint technology for welding low melting alloy materials proposed by British Welding Institute in 1991. Similar to conventional friction welding, friction stir welding also uses friction heat as a heat source. The difference is that friction stir welding uses a stirring column to penetrate into the joint of the workpiece, and through high-speed rotation of the stirring column, high-speed friction with the welding workpiece, so that the material at the stirring site becomes heated and soft to complete the welding.