How to weld aluminum by manual argon arc welding? Who knows? Tell me, it's urgent! Thank you netizens!

Argon arc welding Argon arc welding is a kind of arc welding using argon as shielding gas. In argon arc welding, argon is sprayed from the nozzle to form a closed and continuous gas protective layer, which isolates the arc and molten pool from the atmosphere, avoids the invasion of harmful gases and plays a protective role. According to the different covered electrode used, argon arc welding can be divided into melting electrode argon arc welding and non-melting electrode (or tungsten electrode) argon arc welding. At present, argon arc welding is mainly used to weld non-ferrous metals (such as aluminum, magnesium, copper, titanium and alloys) and rare metals, as well as high-strength alloy steel, stainless steel and heat-resistant steel. 1) equipment is simple and universal, and low-cost AC or DC welding power supply can be used. 2) Flexible and convenient, and can be used for welding weldments with various positions, thicknesses and shapes. 3) covered electrode has complete varieties, which can be used for welding different steels. 4) The welding quality mainly depends on the welder's proficiency and the quality of covered electrode. 5) Low welding efficiency. 6) Adopt gas-slag combined protection. The gas-forming agent in covered electrode coating can isolate air and protect the lower part of the molten pool and solidified weld at high temperature. 7) When welding, the welder must take necessary protective measures.