Optimization of Weld Parameters in Wire and Arc-Based Directed Energy Deposition of High Strength Low Alloy Steels

This paper aims to investigate the fabrication of high strength low alloy (HSLA) steels by wire and arc-based directed energy deposition (WADED). Firstly, relationship between process variables (including travel speed-V, current-C, voltage-U) geometrical characteristics weld beads bead height (BH), width (BW), melting pool length (MPL)) was investigated. Secondly, optimal were identified using desirability approach. The results indicate that voltage-U has highest impact on BW MPL, meanwhile speed-V is most impacting factor BH. for WADED HSAL are V = 0.3 m/min, C 160 A, U 19 V. component fabricated with fully dense without spatters defects, confirming efficiency HSLA steels.