Marco Vallone
Thermo-mechanical modelling of the Directed Energy Deposition (DED) process for the optimization of deposition strategies.
Rel. Alessandro Salmi, Eleonora Atzeni, Mirna Poggi. Politecnico di Torino, Corso di laurea magistrale in Ingegneria Meccanica (Mechanical Engineering), 2022
Abstract
Directed Energy Distribution (DED) process involves in a continuous and subsequent deposition of layers by melting metal powders during which the influence of the DED process parameters set up (such laser power, powders flow rate, toolpath velocity) lead to different results in terms of distribution of the temperatures’ gradient and so residual stresses of the final printed component. For this reason, an investigation on the main process parameters influence on DED process has been done with a following tuning to suit them to the working case. Once the main process parameters were identified it has been pursued the main goal of this work: to analyze four scanning path strategies simulations of the component to be print, by highlighting the main differences between them in terms of deformation results.
For this aim the 3DExperience software was fundamental and helpful to simulate correctly the DED process
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