Additive Manufacturing

Additive manufacturing by arc deposition is an emerging manufacturing technique that has been gaining prominence worldwide due to its ability to manufacture intricate parts with complex geometry and using various types of metal alloys. This commemorative plaque is the materialization of years of development of national technology generated by the LABSOLDA team. This project used an anthropomorphic robot with a moving base that totals eight movement axes integrated with a CAM system to generate and control the deposition path. For the deposition of the material, a high-tech source was used that operates with the GMAW process with dynamic feeding, a technique of oscillating the electrode wire at high frequency in synchronization with the current waveform.

The 309LSi stainless steel wire was used as the deposition material on a 300 x 150 x 4 mm 304L stainless steel substrate. Disregarding the time dedicated to drawing processing, trajectory generation, movement simulation and exploratory welding tests, the part manufacturing time was approximately 30 minutes. Of this time, 10 minutes represent the welding operation (open arc) and the rest refer to empty movements and the waiting time for cooling.