Selective laser sintering (SLS) of powders is an additive manufacturing technique, which allows the construction of three-dimensional objects by adding powder and sintering it layer by layer. By exploiting Discrete Element Method (DEM) simulations, the interaction of the powder-bed and roller was modelled. The quality of the powder-bed was assessed based on the packing behavior of the particles for three roller rotational velocities. It was shown that by modifying the rotational velocity, the powder-bed’s arrangement could potentially be altered. Such information is vital for optimizing the SLS process. With further research, these simulations could enable a cheaper alternative to exploring parameter set-ups.
Simulation of Selective Laser Sintering: Formation of powder bed
D. Sofia;D. Barletta;M. Poletto
2018
Abstract
Selective laser sintering (SLS) of powders is an additive manufacturing technique, which allows the construction of three-dimensional objects by adding powder and sintering it layer by layer. By exploiting Discrete Element Method (DEM) simulations, the interaction of the powder-bed and roller was modelled. The quality of the powder-bed was assessed based on the packing behavior of the particles for three roller rotational velocities. It was shown that by modifying the rotational velocity, the powder-bed’s arrangement could potentially be altered. Such information is vital for optimizing the SLS process. With further research, these simulations could enable a cheaper alternative to exploring parameter set-ups.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
