Stirring the molten metal in a weld pool. Welds in cast iron and steel are usually puddled with the welding rod. Welds in aluminum are puddled with a puddle stick made of flattened steel rod.
Stirring the molten metal in a weld pool. Welds in cast iron and steel are usually puddled with the welding rod. Welds in aluminum are puddled with a puddle stick made of flattened steel rod.