Non-linear thermal model of the Direct Laser Melting Process considering the adhesion of the consolidated material to the substrate using a domain with discontinuous material properties

Cordovilla Baró, Francisco and García Beltrán, Ángel and Montealegre, María Ángeles and Ocaña Moreno, José Luis (2019). Non-linear thermal model of the Direct Laser Melting Process considering the adhesion of the consolidated material to the substrate using a domain with discontinuous material properties. In: "Lasers in Manufacturing. LiM 2019", 24-27 Jun 2019, Munich. pp. 1-12.

Description

Title: Non-linear thermal model of the Direct Laser Melting Process considering the adhesion of the consolidated material to the substrate using a domain with discontinuous material properties
Author/s:
  • Cordovilla Baró, Francisco
  • García Beltrán, Ángel
  • Montealegre, María Ángeles
  • Ocaña Moreno, José Luis
Item Type: Presentation at Congress or Conference (Article)
Event Title: Lasers in Manufacturing. LiM 2019
Event Dates: 24-27 Jun 2019
Event Location: Munich
Title of Book: Lasers in Manufacturing. LiM 2019
Date: 2019
Subjects:
Faculty: E.T.S.I. Industriales (UPM)
Department: Física Aplicada e Ingeniería de Materiales
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

In the Direct Laser Melting Process the distribution of the heat between the powder flow and the substrate plays a crucial role in the adhesion of the supplied material. Nevertheless, during the interaction between them, laser beam and powder flow with a given section, the growth of the consolidated material introduces a continuous change in the conditions of the process which makes it difficult to evaluate the effective amount of energy addressed to the substrate leading to an effective melting of it. The present study proposes a non-linear thermal model where the thermo-physical properties of the domain change dynamically according to the evolution of the geometry of the supplied material, as a function, in turn, of the powder flow and the process speed. Important aspects such as the influence of the process parameters, especially, the shielding associated to the powder flow, are evaluated as conditioning factors for a successful adhesion.

More information

Item ID: 64989
DC Identifier: http://oa.upm.es/64989/
OAI Identifier: oai:oa.upm.es:64989
Official URL: https://www.photonics-congress.com/en/about/conferences/lim/
Deposited by: Memoria Investigacion
Deposited on: 29 Oct 2020 17:45
Last Modified: 29 Oct 2020 17:45
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