Finite element analysis of temperature and density distributions in selective laser sintering process

Lin Dong, Ahmed Makradi, Said Ahzi, Yves Remond

Research output: Chapter in Book/Report/Conference proceedingConference contribution

12 Citations (Scopus)

Abstract

In the selective laser sintering (SLS) manufacturing technique a pre-heated layer of material powder undergoes a laser radiation in a selective way to produce three dimensional metallic or polymeric solid parts. Here, we consider sintering of polymer powder. The phase transformation in this process involves the material heat transfer which is strongly affected by the material sintering phenomena. A transient three dimensional finite element model is developed to simulate the phase transformation during the selective laser sintering process. This model takes into account the heat transfer in the material (powder and solid), the sintering and the transient nature of this process. The numerical simulation of the set of equations, describing the problem, is made possible by means of the commercial finite element software Abaqus. A bi-level structure integration procedure is chosen, in which the density is integrated at the outer level and the heat equation is integrated in the inner level. After successfully computing the integration of the density, a material Jacobian representing the thermal phenomena is computed and supplemented the Abaqus Code via an implicit user subroutine material. Results for temperature and density distribution, using a polycarbonate powder, are presented and discussed.

Original languageEnglish
Title of host publicationMaterials Science Forum
Pages75-80
Number of pages6
Volume553
DOIs
Publication statusPublished - 2007
Externally publishedYes
Event2nd International Conference on Diffusion in Solids and Liquids, DSL-2006 - Aveiro, Portugal
Duration: 26 Jul 200628 Jul 2006

Publication series

NameMaterials Science Forum
Volume553
ISSN (Print)02555476

Other

Other2nd International Conference on Diffusion in Solids and Liquids, DSL-2006
CountryPortugal
CityAveiro
Period26/7/0628/7/06

Fingerprint

Sintering
Finite element method
Powders
Lasers
polycarbonate
Temperature
Phase transitions
Heat transfer
Subroutines
Laser radiation
Polycarbonates
Polymers
Computer simulation
Hot Temperature

Keywords

  • Finite element
  • Laser beam
  • Numerical simulation
  • Polycarbonate
  • Rapid prototyping
  • Selective laser sintering (SLS)

ASJC Scopus subject areas

  • Materials Science(all)

Cite this

Dong, L., Makradi, A., Ahzi, S., & Remond, Y. (2007). Finite element analysis of temperature and density distributions in selective laser sintering process. In Materials Science Forum (Vol. 553, pp. 75-80). (Materials Science Forum; Vol. 553). https://doi.org/10.4028/0-87849-438-3.75

Finite element analysis of temperature and density distributions in selective laser sintering process. / Dong, Lin; Makradi, Ahmed; Ahzi, Said; Remond, Yves.

Materials Science Forum. Vol. 553 2007. p. 75-80 (Materials Science Forum; Vol. 553).

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Dong, L, Makradi, A, Ahzi, S & Remond, Y 2007, Finite element analysis of temperature and density distributions in selective laser sintering process. in Materials Science Forum. vol. 553, Materials Science Forum, vol. 553, pp. 75-80, 2nd International Conference on Diffusion in Solids and Liquids, DSL-2006, Aveiro, Portugal, 26/7/06. https://doi.org/10.4028/0-87849-438-3.75
Dong L, Makradi A, Ahzi S, Remond Y. Finite element analysis of temperature and density distributions in selective laser sintering process. In Materials Science Forum. Vol. 553. 2007. p. 75-80. (Materials Science Forum). https://doi.org/10.4028/0-87849-438-3.75
Dong, Lin ; Makradi, Ahmed ; Ahzi, Said ; Remond, Yves. / Finite element analysis of temperature and density distributions in selective laser sintering process. Materials Science Forum. Vol. 553 2007. pp. 75-80 (Materials Science Forum).
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