Spot welding machine belongs to resistance welding, low voltage high current, CO2 welding machine is arc welding machine, classification is different, spot welding machine is suitable for metal plate lap welding, but also can bump welding, CO2 welding machine is suitable for deep penetration of plate welding
Spot welding machines are soldered together by using current flowing through metal contact parts to generate heat and hold them together. The main object is a small metal piece or wire.
First of all, they all belong to the category of welding welding, but the essence is different, first, by a large current through spot welding is the welding workpiece, and the workpiece has resistance to melting heat generated or molten state to give a certain pressure to achieve the purpose of welding, so it is also called a resistance welding, belonging to the pressure welding, so it is very clear, the welding material must have resistance, which is a prerequisite, 220V can be done, it depends on the transformer. Second, gas shielded welding, as the name suggests, is a need for gas protection and welding, arc welding. Then from the above we can see not hard, spot from the process is simple, does not need any external add accessories, achieve the purpose of welding, and welding is required under gas protection welding, some will wire filler, mainly depends on your products and welding. Hope to help you.
