If you know welding, then you know, one of the more complicated types of materials to work with is aluminum. Preparation, wire feeding, and shielding gas play a big role in successfully welding with aluminum.
When it comes time to replace your MIG gun, you may think it’s as simple as going to the store and buying the same one you’ve used in the past; but is that really the case? Besides the obvious; amperage, wire type, air-cooled or water-cooled, what should you be thinking about when buying a replacement MIG gun?
When choosing a through-arm torch or an over-arm torch, one should know the advantages, disadvantages, and the compatibility of each. And you might be surprised about which orientation is best for you, and what mount might be best for you depending on your process.