Effects of different WAAM current deposition modes on the mechanical properties of AISI H13 tool steel

In this work, AISI H13 tool steel build-ups were produced through wire arc additive manufacturing (WAAM). The cold metal transfer (CMT), low spatter control (LSC) and pulsed synergic (PS) current deposition modes compared. Similar strategy was employed in order to attempt evaluate the influence of energy input on geometrical mechanical properties deposits. To deposits, hardness tensile tests carried out. Microstructures analysed optical microscope. As a result intrinsic characteristics each waveform adjustments heat source used perform value similar for CMT PS mode lower LSC mode. deposit tallest widest. Temperatures higher using values all deposits than usual ones steel. microstructure composed by hard phases, precipitates at grain boundaries responsible brittle fracture observed specimens.