Experiments for WAAM Technologies

Abstract

The most recent group of technologies added to Additive Manufacturing (AM) field, Wire and Arc Additive Manufacturing (WAAM) use some well known welding processes, generally gas metal arc welding (GMAW codification at American Welding Society and 135 at International Institute of Welding/Institute International de Soudure) or Tungsten Inert Gas to manufacture products used in top ranged production field like aeronautics. Remarkable results in this new method for industrial production have been achieved by research groups from Cranfield, Delft and many other universities around the world and were published in prestigious research journals. Together with our students from Welding Engineering Program and our limited resources for powerful researches an approach to these new working technologies have been done and our main objective was to show that strong researches could be done with more resources during masters or doctoral studies. In this proposed paper some experiments with shielded metal arc welding process will be presented which have been done to investigate what are the internal structure of welded products made when bead over bead have been deposed, also will be presented some hardness tests of manufactured structure and machining tests for milling process.