Aluminum and aluminum alloys play a pivotal role in various materials used in modern engineering technology, and are widely used in aerospace, automobile, shipbuilding and other manufacturing industries. So how is aluminum welded? Today, Be-Cu.com is here to tell you about it, and I hope it will be helpful to you.

Welding method: 1. Argon machining tungsten arc welding: argon tungsten arc welding is mainly used for aluminum alloy, which is a better welding method, but the argon tungsten arc welding equipment is more complicated and 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 below 5mm. However, the equipment used in welding is relatively complicated, the welding current is large, and the productivity is high, which is especially suitable for mass-produced parts and components.

3. Pulse argon arc welding: pulse argon arc welding can improve the stability in the welding process, and the parameters can be adjusted to control the arc power and weld shape.

4. Friction stir welding: Friction stir welding is firstly and mainly used in the field of light metal structures such as aluminum alloy and magnesium alloy. The biggest feature of this method is that the welding temperature is lower than the melting point of the material, which can avoid the welding caused by welding Defects such as cracks and pores.

Welding skills: 1. The welding environment of aluminum alloy must be dustproof, waterproof and dry. The ambient temperature is usually controlled above 5 ℃, and the humidity is controlled below 70%. Try to ensure that the humidity of the welding environment is not too high. If the humidity is too high, the probability of pores in the weld will increase significantly, thus affecting the welding quality.

2. Aluminum welding wire should be stored separately from steel welding consumables, and the use time should not exceed 1a. After the welding is completed, the welding wire should be taken out of the welding machine for aluminum sheet metal fabrication sealing treatment to prevent pollution. Air supply hoses of different materials have different resistance to moisture ingress, especially when the air supply pressure is high, the influence of the air supply hose is more obvious.