Aluminum alloy welding method aluminum alloy weldi

2022-07-22
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Aluminum alloy is widely used in industrial products because of its good physical properties. However, due to the improper selection of welding methods and welding process parameters, aluminum alloy parts are severely deformed due to excessive stress concentration after welding, or weld metal cracks or loose materials are caused due to weld porosity, slag inclusion, incomplete penetration and other defects, which seriously affects the quality and performance of products

aluminum alloy is widely used in industrial products because of its good physical properties. However, due to the improper selection of welding methods and welding process parameters, aluminum alloy parts are severely deformed due to excessive stress concentration after welding, or weld metal cracks or loose materials are caused due to weld porosity, slag inclusion, incomplete penetration and other defects, which seriously affects the quality and performance of products. Next, the editor will introduce aluminum alloy welding methods and precautions for aluminum alloy welding

aluminum alloy welding method

1. Argon tungsten arc welding

argon tungsten arc welding method is mainly used for aluminum alloy, which is a better welding method. However, argon tungsten arc welding equipment is more complex, which is not suitable for operation in open air

2. Resistance spot welding and seam welding

this welding method can be used to weld aluminum alloy sheets with a thickness of less than 5mm. However, the equipment used in welding is relatively complex, with high welding current and high productivity, which is especially suitable for parts and components in mass production

3. Pulsed argon arc welding

pulsed argon arc welding can improve the stability in the welding process. Parameters can be adjusted to control arc power and weld formation. The weldment has small deformation and small heat affected zone, which is especially suitable for thin plate, all position welding and other occasions, as well as the welding of forged aluminum, duralumin, superhard aluminum with strong heat sensitivity

precautions for aluminum alloy welding

1. Before welding aluminum alloy, the surface of aluminum alloy should be cleaned without oil stain, dust, etc. acetone can be used to clean the surface of aluminum alloy welding. Thick aluminum alloy should be cleaned with steel wire brush, and then acetone can be added

2. When welding aluminum alloy, the surface of aluminum alloy should be cleaned first, and there should be no oil smoke, dust, etc. in addition, thick aluminum alloy should be cleaned with steel wire brush, and then cleaned with acetone

3. If the plates can be preheated after comparison, it can prevent insufficient preheating from causing incomplete welding. When the arc is stopped, it is necessary to use a small current to stop the arc and fill the pit

4. The welding must be standardized, and the welding should be carried out according to the thickness of the plate

5. The cable of the welding gun should not be too long, if it is too long, it will cause stable wire feeding

editor's summary: This is the introduction of aluminum alloy welding methods and precautions for aluminum alloy welding. I hope it will be helpful to you. If you want to know more, you can pay attention to information

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