Innovation in Welding in Terms of Processes, Weldability or Design Connections

Abstract

Innovation in welding when analysed from several aspects: In terms of processes, it can be seen on a daily basis, with brands presenting new concepts that have been implemented in new machines and equipment; regarding weldability, the new developments are implemented and depend on the acquisition of techniques. At the project level, innovation is much slower as it depends on checking the consistency of weldability and approval in the form of standards or codes. In this document, simple experimental studies are used, where some of the points mentioned above are put into practice, based on MIG and laser welding processes. The MIG variants have led to development in welding in terms of robustness and productivity. Meanwhile, laser welding has introduced new competitive welding solutions. The experimental component focused on welding steel, stainless steel and aluminium alloy as these are the most used and complement each other in the most varied structural and constructive solutions. Meanwhile, aluminium alloys have many advantages in uses where a good relationship between mechanical strength and weight is desired. The methods are based on simple visual or micrographic analyses and tensile and hardness tests. In the end, it is concluded that the welds meet the quality that would be necessary for the design requirements in butt joints.