Aluminum Alloy is widely used in industrial products, because it has good physical properties, but the selection of welding methods and welding parameters properly, resulting in Aluminum Alloy welding parts due to the stress concentration caused serious deformation, or because of weld porosity and slag, incomplete welding defects, resulting in weld metal crack or loose material, seriously affecting the product quality and performance. The next small series for the introduction of aluminum alloy welding methods and the attention of aluminum alloy.

Aluminium alloy welding method

1, tungsten electrode argon arc welding

Tungsten argon arc welding is mainly used for aluminum alloy, it is a good welding method, but the tungsten argon arc welding equipment is more complex, it is not suitable for operation in open air condition.

2, resistance spot welding, seam welding

This welding method can be used to weld aluminum alloy sheets with thickness below 5mm. However, the equipment used in welding is more complicated, the welding current is big, the productivity is higher, especially suitable for the mass production of parts and components.

3, pulsed argon arc welding

Pulsed argon arc welding can be very good to improve the stability of the welding process can adjust the parameters to control the arc power and weld formation. Welding deformation is small, small heat affected zone, especially suitable for sheet, all position welding and welding etc on the thermal sensitivity of strong aluminum forging, aluminum, aluminum etc..

Attention to welding of aluminum alloy

1, first to clean the surface of welding Aluminum Alloy Aluminum Alloy before, can not have oil, dust, surface cleaning with acetone can Aluminum Alloy welding, plate Aluminum Alloy to clean with a wire brush, then add acetone cleaning.

2, in the welding of aluminum alloy to clean the surface of aluminum alloy, can not have smoke, dust, etc., in addition to the thick aluminum alloy steel wire brush to clean up, and then add acetone cleaning.

3, if the plate can be compared to the plate preheating, thus preventing preheating caused by insufficient welding through, in arc should be used when small current arc pit.

4, welding must be standardized, according to the thickness of the plate to weld

5, the torch cable not too long, if too long will cause the wire stability.