A new heat transfer simulation model for selective laser melting to estimate the geometry of cross section of melt pool

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

Abstract

For simulating the geometry of melt pool’s cross section more accurately in Selective Laser Melting (SLM) process, modeling the volumetric heat source is considered as the key issue. In the present study, a three dimensional finite element heat transfer simulation with new volumetric heat source is proposed to simulate the geometry of melt pool’s cross section during SLM process. The approach to build up the volumetric heat source is based on the modified sequential addition method to simulate the powder bed and the Monte Carlo ray tracing simulation in Zemax to calculate the energy distribution along the depth of metal powder layer. For validating the proposed simulation model, the simulated result of the contact-width between melt pool and substrate is compared with experimental result presented in the existing literature.

Original languageEnglish
Title of host publicationMechanics of Additive and Advanced Manufacturing - Proceedings of the 2017 Annual Conference on Experimental and Applied Mechanics
EditorsEmily Huskins-Retzlaff, Eric Brown, Bonnie Antoun, Piyush R. Thakre, Ioannis Chasiotis, Sharlotte Kramer, Weinong Chen, Junlan Wang
PublisherSpringer New York LLC
Pages13-16
Number of pages4
ISBN (Print)9783319628332
DOIs
Publication statusPublished - 2018 Jan 1
EventAnnual Conference and Exposition on Experimental and Applied Mechanics, 2017 - Indianapolis, United States
Duration: 2017 Jun 122017 Jun 15

Publication series

NameConference Proceedings of the Society for Experimental Mechanics Series
Volume9
ISSN (Print)2191-5644
ISSN (Electronic)2191-5652

Other

OtherAnnual Conference and Exposition on Experimental and Applied Mechanics, 2017
CountryUnited States
CityIndianapolis
Period17-06-1217-06-15

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All Science Journal Classification (ASJC) codes

  • Engineering(all)
  • Computational Mechanics
  • Mechanical Engineering

Cite this

Tran, H. C., & Lo, Y. L. (2018). A new heat transfer simulation model for selective laser melting to estimate the geometry of cross section of melt pool. In E. Huskins-Retzlaff, E. Brown, B. Antoun, P. R. Thakre, I. Chasiotis, S. Kramer, W. Chen, ... J. Wang (Eds.), Mechanics of Additive and Advanced Manufacturing - Proceedings of the 2017 Annual Conference on Experimental and Applied Mechanics (pp. 13-16). (Conference Proceedings of the Society for Experimental Mechanics Series; Vol. 9). Springer New York LLC. https://doi.org/10.1007/978-3-319-62834-9_3