Welding Aluminum In Dc. Direct current is the only way to do it. You need to have a DC stick welder.
Ad Overhead Ambient or Portable. They can also be used with a conventional oxyacetylene. Once the material has a thickness of over ¼ inch the rule of the thumb starts to deviate and not as much amp is needed.
The most common reason to try DC power on Aluminum is a situation when the metal is thick usually thicker than ½ in most cases.
If you try to AC weld a thicker piece of aluminum theres a chance you could warp distort or burn through the. Ad Overhead Ambient or Portable. Ad Overhead Ambient or Portable. The most common reason to try DC power on Aluminum is a situation when the metal is thick usually thicker than ½ in most cases.