Enhancement of a quasi-analytical solution for modelling additive manufacturing processes

Abstract Numerical modelling methods (e.g. finite element) can provide accurate descriptions of long-range temperature fields in laser or electron-beam melting processes, however the high computational costs at part-scale make them unsuitable for process additive manufacturing (AM). Alternative such as semi-analytical solutions based on a moving heat source reduce expense but cost unrealistic assumptions. Radiation, temperature-dependent physical properties and latent are not considered approach have significant effect thermal history. In this study, error associated with each these contributions assessed against conduction-only solution range processing parameters surface solid Ti-6Al-4V. The model is then “enhanced” using results from element simulations to better account transfer AM process.