What are the welding processes of copper?

1. Oxy-acetylene welding

Wire 201 (or wire 202) wire and flux 301 can be used for copper oxy-acetylene welding. After 400~700℃ preheating before welding, the welding flame adopts neutral flame and large flame power. Using fewer welding layers, hammer the weld after welding to reduce welding stress.

2, electrode arc welding

Copper 107 or 227 electrode can be selected for arc welding. The power supply adopts DC reverse connection. The preheating temperature before welding is 300~500℃, and the short arc and straight shuttle rod are used during welding. After welding, the welding seam is hammered to reduce the welding stress.

3, argon tungsten arc welding

The welding wire and flux used in argon tungsten arc welding are the same as those used in oxy-acetylene welding, and the power supply is direct current. Preheat before welding, but the temperature should not be too high.