Tips for welding cast iron with a mig welder
You've probably heard people say that welding cast iron with a mig welder is a recipe for disaster, but it's actually doable if you're willing to play by a very specific set of rules. It isn't as straightforward as zapping two pieces of mild steel together in your garage, and if you treat it like a standard project, you're almost guaranteed to hear that dreaded "tink" sound—the sound of your weld or the surrounding metal cracking as it cools. Cast iron is a temperamental beast, but with the right prep and a bit of patience, you can pull off a solid repair. ...