ASSESSMENT OF ACTIVE FLUXES IN FORMATION OF WELDING BEAD IN STRUCTURAL AND STAINLESS STEEL BY THE TIG WELDING PROCESS: ASSESSMENT OF ACTIVE FLUXES IN FORMATION OF WELDING BEAD IN STRUCTURAL AND STAINLESS STEEL BY THE TIG WELDING PROCESS

TIG WELDING PROCESS MAKES IT POSSIBLE TO OBTAIN WELD BEADS WITH HIGH QUALITY AND A GOOD FINISH. A-TIG WELDING PROCESS IS USED TO INCREASE THE PRODUCTIVITY AND PENETRATION OF THE WELD BY APPLYING A LAYER OF ACTIVE FLUX ON THE SURFACE OF THE BASE METAL. ITS EFFECT IS THE REDUCTION OF THE DIAMETER OF THE ARC COLUMN, WITH THE CONSEQUENT INCREASE IN THE CURRENT DENSITY AND THE EFFECT OF THE PLASMA JET IN THE WELD POOL. THIS PAPER AIMED TO EVALUATE THE INFLUENCE OF DIFFERENT ACTIVE FLUXES ON ABNT 304 AUSTENITIC STAINLESS STEEL AND ASTM A36 STRUCTURAL STEEL, EVALUATING THE EFFECTS ON PENETRATION, WELD BEAD WIDTH AND THE MOLTEN AREA. MACROGRAPHIC AND MICROGRAPHIC ANALYSIS WERE PERFORMED TO DETERMINE THE VISUAL ASPECTS AND TO DETERMINE THE MORPHOLOGY OF THE COMPONENTS PRESENT IN THE BASE METAL AND IN THE WELD BEADS. MICROHARDNESS TESTING WAS USED TO EVALUATE THE EFFECTS OF USING THE FLUX ON THE WELD BEAD. THE RESULTS INDICATE THAT THE FLUXES FORMED BY CELLULOSIC ELECTRODE COATING AND CALCIUM CHLORIDE HAVE THE POTENTIAL TO IMPROVE PENETRATION AND PRODUCTIVITY FOR THE WELDING OF ABNT 304 AUSTENITIC STAINLESS STEELS.

TIG WELDING MAKES IT POSSIBLE TO OBTAIN WELD BEADS WITH HIGH QUALITY AND A GOOD FINISH. A-TIG PROCESS IS USED TO INCREASE THE PRODUCTIVITY AND PENETRATION OF THE WELD BY APPLYING A LAYER OF ACTIVE FLUX ON THE SURFACE OF THE BASE METAL. ITS EFFECT IS THE REDUCTION OF THE DIAMETER OF THE ARC COLUMN, WITH THE CONSEQUENT INCREASE IN THE CURRENT DENSITY AND THE EFFECT OF THE PLASMA JET IN THE WELD LIQUID POOL. THIS PAPER AIMED TO EVALUATE THE INFLUENCE OF DIFFERENT ACTIVE FLUXES ON ABNT 304 AUSTENITIC STAINLESS STEEL AND ASTM A36 STRUCTURAL STEEL, EVALUATING THE EFFECTS ON PENETRATION, WELD BEAD WIDTH AND THE MELTED AREA. MACROGRAPHIC AND MICROGRAPHIC ANALYSIS WERE PERFORMED TO DETERMINE THE VISUAL ASPECTS AND TO DETERMINE THE MORPHOLOGY OF THE COMPONENTS PRESENT IN THE BASE METAL AND IN THE WELD BEADS. MICROHARDNESS TESTING WAS USED TO EVALUATE THE EFFECTS OF USING THE FLUX ON THE WELD BEAD. THE RESULTS INDICATE THAT THE FLUXES FORMED BY CELLULOSIC COATING AND CALCIUM CHLORIDE HAVE THE POTENTIAL TO IMPROVE PENETRATION AND PRODUCTIVITY FOR THE WELDING OF ABNT 304 AUSTENITIC STAINLESS STEELS.

Palavras-chave

A-TIG Welding; Welding Metallurgy; ABNT 304 Austenitic Stainless Steels

Como citar

Abreu, Luiz Gustavo de Oliveira; Porcaro, Rodrigo Rangel. ASSESSMENT OF ACTIVE FLUXES IN FORMATION OF WELDING BEAD IN STRUCTURAL AND STAINLESS STEEL BY THE TIG WELDING PROCESS , p. 22-33. In: 57° Seminário de Laminação e Conformação de Metais, São Paulo, 2022.
ISSN: 2594-5297 , DOI 10.5151/2594-5297-34071