Tig Welding Of Cast Iron. Back to tig welding cast. Cast needs preheat anyway but even more if youre going to electrically weld it rather than with a gas torch.
The most popular choice in arc welding rods seems to be nickel rods also called ni rod. A newly developed weldability test is described in detail and instructions given for its. MIG welder is highly possible for welding cast iron.
TIG welding shouldnt give you any spatter issues.
Nickel wire is the only real option to work for this work when TIG welds with cast iron. The cast iron is difficult to weld because of rapid heat up and quick cool down before and after welding. Brassing rod lower cost than silicon brazing rod. Oxy-acetylene welding is another option frequently used to weld cast iron.