Patent ID: 6392184
Filing Date: 2002-05-21
Classification: B23K

Abstract:
A torch for gas shielded arc welding using a consumable electrode, comprising:a torch body having a wire guide cylinder for guiding a welding wire; an internal cylinder fitted to said torch body in such a manner as to surround said wire guide cylinder; an external cylinder fitted to said internal cylinder in such a manner as to surround said internal cylinder wherein said external cylinder has a tip receded a predetermined distance from a tip of said internal cylinder and said tip of said external cylinder has a smoothly widened portion in the shape of a bellmouth; a first shielding gas feed route for feeding a shielding gas in a first gas passageway formed between said wire guide cylinder and said internal cylinder; and a second shielding gas feed route for feeding the shielding gas in a second gas passageway formed between said internal cylinder and said external cylinder.