Through numerical trials, this study aims to identifying the effect of 8 different combinations of friction stir spot processing (FSSP) parameters - plunge force and rotation velocity on AlSi10Mg alloy cube-shaped samples that were manufactured by Selective laser melting (SLM). The simulation was structured as follows. First, a thermomechanical model predicted plunge depth, maximal temperature, contact forces and strains for 1-second-long process. Second, a thermal model predicted the complete thermal cycle and dimensions of heat affected zones after 6 seconds of processing and subsequent 4 seconds of air-cooling. As to prevent undesired surface deformation, high rotational speeds must be combined with lower plunge force to limit the block deformation.
On the numerical modelling of friction stir spot processing of selective laser manufactured AlSi10Mg alloy blocks
Caiazzo F.
2023-01-01
Abstract
Through numerical trials, this study aims to identifying the effect of 8 different combinations of friction stir spot processing (FSSP) parameters - plunge force and rotation velocity on AlSi10Mg alloy cube-shaped samples that were manufactured by Selective laser melting (SLM). The simulation was structured as follows. First, a thermomechanical model predicted plunge depth, maximal temperature, contact forces and strains for 1-second-long process. Second, a thermal model predicted the complete thermal cycle and dimensions of heat affected zones after 6 seconds of processing and subsequent 4 seconds of air-cooling. As to prevent undesired surface deformation, high rotational speeds must be combined with lower plunge force to limit the block deformation.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
