Smoothed particle hydrodynamics simulations in two dimensions are used to calculate the transient melt pool temperature distribution in the laser powder bed fusion process of polymers. The effects of laser power, scan speed, hatch distance, absorptance, emissivity, density, heat capacity, heat transfer, latent heat, thermal conductivity, melting and re-solidification, viscosity and surface tension are considered in the model. A wide range of these laser parameters and material properties is investigated. Complementary to the simulation results, infrared camera measurements of the transient surface temperature are provided.
The numerical simulation results were obtained by using the software SimPARTIX.
536 Wärme 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten 621 Angewandte Physik
smoothed particle hydrodynamics melt pool additive manufacturing