Analyze and Optimize the Welding Parameters of the Process by Pulsed Tubular Wire (FCAW - Flux Cored Arc Welding) Based on the Geometry of the Weld Beads Resulting from each Test

Abstract: This study aimed to analyze and optimize deposition welding parameters using a pulsed tubular wire process (FCAW - Flux Cored Arc Welding), where the influence variables adopted were average current, pulsation frequency, speed contact-tip-workpiece distance, with each variable being tested at three different levels. The geometric characteristics evaluated, that is, response variables, are width, reinforcement, penetration, reinforcement area, penetration area dilution. distance In order achieve proposed objective, statistical techniques used as analysis tools, and, in first phase, robust design method (Taguchi) was establish which combinations of would be performed test, providing us an L9 matrix. second variance tables (ANOVA) constructed select most significant parameters.