Hybrid welding applied to highway implements with laser + MAG

Abstract

This work aims to address content related to the application of hybrid laser-arc welding (HLAW), combining a high-power laser beam with an electric arc, using a shielding gas and wire to perform welding, highlighting the advantages of this process. Regarding the presentation of content related to the topic, bibliographic and experimental research was applied. After the experiments, it was found that the resistant section in the hybrid process is at least 40% higher than that obtained in the semi-automatic process, due to the superior penetration of the laser in overlapping plates. Regarding the hybrid MAG welding process (HLAW) applied to overlapping joints, it can be stated that satisfactory results are achievable in terms of visual assessments, penetration, and hardness, within standard tolerance limits. From a financial perspective, the initial investments require a payback period of 4.3 years, which is considered viable for the road implements sector.