GAS COMPOSITION FOR ARC WELDING

The disclosed invention is a composition and process for employing a shielding gas in arc welding. The disclosed composition includes oxygen in an amount between about 0.6% and about 1.9%, helium in an amount between about 10% and about 24%, and the remainder consisting essentially of argon. The inv...

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Bibliographic Details
Main Authors MACEDO, WILLIAM DE ABREU, CORREIA, JOAO VINICIUS DE OLIVEIRA
Format Patent
LanguageEnglish
French
Published 20.01.2005
Edition7
Subjects
CLADDING OR PLATING BY SOLDERING OR WELDING
CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING
MACHINE TOOLS
METAL-WORKING NOT OTHERWISE PROVIDED FOR
PERFORMING OPERATIONS
SOLDERING OR UNSOLDERING
TRANSPORTING
WELDING
WORKING BY LASER BEAM
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Summary:The disclosed invention is a composition and process for employing a shielding gas in arc welding. The disclosed composition includes oxygen in an amount between about 0.6% and about 1.9%, helium in an amount between about 10% and about 24%, and the remainder consisting essentially of argon. The invention can be used in high-speed automated welding to result in significantly improved welding speed, joint fit-up tolerance, and burn-through minimization while maintaining excellent mechanical characteristics. L'invention concerne une composition et un procédé d'utilisation d'un gaz protecteur lors du soudage électrique à l'arc. La composition de cette invention renferme de l'oxygène selon une quantité comprise entre environ 0,6 % et environ 1,9 %, de l'hélium selon une quantité comprise entre environ 10 % et environ 24 % et le reste étant essentiellement constitué d'argon. L'invention peut servir lors du soudage automatisé haute vitesse afin d'améliorer la vitesse de soudage de manière considérable, dans la tolérance à la fixation de joints et dans la minimisation de trous tout en maintenant d'excellentes caractéristiques mécaniques.
Bibliography:Application Number: WO2004US06444