Welding process for assembling two metallic workpieces

摘要

The method of butt welding a railway track to a crossing block (32) involves placing a chamber between the faces to be welded, filled with a metal weld material. The chamber is open to the exterior by an access passage with a depth greater than four times the spacing between the two opposing faces to be welded. The welding tip is introduced into the access passage for gas protected welding.