Numerical analysis of support structures’ removal from additively manufacturued components
Visualitza/Obre
Estadístiques de LA Referencia / Recolecta
Inclou dades d'ús des de 2022
Cita com:
hdl:2117/334869
Tipus de documentText en actes de congrés
Data publicació2019
EditorCIMNE
Condicions d'accésAccés obert
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Abstract
The finite element analysis (FEA) of components’ build-up has recently proved to be a valuable tool for accompanying the product and process development during additive manufacturing (AM). In this numerical method a first key aspect is the heat input modelling of laser scanning for building-up AM products of industrial relevance, as close to reality as possible, by applying equivalent heat source models. Based on these reduction models the stress distribution in a successive thermo-mechanical simulation is calculated approximating the sum of thermal, elastic and plastic stresses during processing and the remaining elastic and plastic stresses after cooling. A further key aspect is, thereupon, to predict the final shape of the additively manufactured component by means of the FEA after its removal from the substrate or the support structures. This work aims to analyze the development of stresses in components during their additive laser processing and cooling to ambient temperature as well as after post-processing cutting operations. Moreover, the associated to stress development simulated final part shape is evaluated with the aid of 3d measurements on an additively manufactured twin cantilever of industrial relevance. Finally, based on the rendered simulation results a compensation of the undesired shape distortions is proposed based on reverse engineering approach.
CitacióPapadakis, L. Numerical analysis of support structures' removal from additively manufacturued components. A: Sim-AM 2019. "Sim-AM 2019 : II International Conference on Simulation for Additive Manufacturing". CIMNE, 2019, p. 349-360. ISBN 978-84-949194-8-0.
ISBN978-84-949194-8-0
Fitxers | Descripció | Mida | Format | Visualitza |
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Sm_AM-2019_33-NUMERICAL ANALYSIS OF SUPPORT.pdf | 879,3Kb | Visualitza/Obre |