Heliarc welding, have you heard about it ?

[Music] one of Lindy's modern methods for joining Metals helar welding has many advantages that make it specially suited to welding carbon steel pipe the steady stable Arc is easy to use and the clean spatter free Wells are high in quality and low in [Music] [Applause] cost helar welding uses a non-consumable tungsten electrode the necessary heat for welding is provided by the intense electric Arc between the electrode and the workpiece Argon an iner gas flows over the well puddle and protects it from the [Music] air where filler metal is needed to make the joint a welding rod is fed into the puddle and melted with the base metal welding power is direct current straight polarity