Article ID Journal Published Year Pages File Type
8038882 CIRP Journal of Manufacturing Science and Technology 2018 18 Pages PDF
Abstract
A two-dimensional Finite Difference (FD) model of the thermal history of parts manufactured in powder bed fusion Additive Manufacturing (AM) processes is presented. The temperature of the part is calculated in each time-step taking into account the moving laser heat source, the melting phase change and functions of both temperature and porosity are used for the material thermal properties. Also, an algorithm for node birth and distance adaptation over time is utilized, minimizing computational time and memory. A validation of the results of the model is included.
Related Topics
Physical Sciences and Engineering Engineering Industrial and Manufacturing Engineering
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