The best type of welding equipment you’ll find is the TIG welder, it uses a tungsten rod which is much denser and stronger than standard steel and it has a much, much higher melting point. It can melt most metals, however, you’ll need to prepare the metal before you put it under the welding rod.
Source: https://industrialupdating.wordpress.com/2018/05/03/basics-of-tig-welding/
