Method and apparatus for tig tube welding

摘要: Described herein is a method and apparatus for fully automatically weld-joining lengths of metal instrument tubing employing the TIG welding process to advance weld puddle about periphery junction aligned ends straight tubing, respective end portions which are held in closed chamber rigidly clamped spaced seats robust head resist elongation by heating; unit comprises handle portion axially separably joined with providing drive rotating electrode carrier spool therein work, angular interval marking signals being transmitted remote control from current gas supplied according program selected material joined. A cycle commences stationary arc developing pool, followed at uniform speed controlled levels over sectors, sustained beyond 360* complete spanning two revolutions terminating bead-cooling flow. Repeatable welds high quality on production basis may be obtained, characterized minimal fall-in bead, full area fusion faces, constant internal diameter.