Thermal and residual stress modelling of the selective laser sintering process

AK Ibraheem; B Derby; PJ Withers

doi:DOI: https://doi.org/10.1557/PROC-758-LL1.8

Thermal and residual stress modelling of the selective laser sintering process

AK Ibraheem, B Derby, PJ Withers

Materials Engineering

Research output: Chapter in Book/Report/Conference proceeding › Chapter › peer-review

Abstract

The production of functional tool steel components by selective laser sintering requires an understanding of the effects of the laser processing parameters on the microstructure evolution during the fabrication process. This would allow the production of tools that have predictable and reproducible microstructure, good mechanical properties and low residual stresses. In this paper, finite element modelling has been carried out to investigate the temperature distribution and residual stresses during laser sintering of hot-work tool steel powders. The effects of the laser power and scanning rate on the selective laser sintering process have been investigated. Thermal residual stresses accumulated during the process have been predicted and compared with strain measurements made using neutron diffraction.

Original language	Undefined
Title of host publication	MRS Online Proceedings Library (OPL)
Pages	47-52
Number of pages	6
Volume	Volume 758 (Symposium LL – Rapid Prototyping Technologies)
DOIs	https://doi.org/DOI: https://doi.org/10.1557/PROC-758-LL1.8
Publication status	Published - 2003

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This output contributes to the following UN Sustainable Development Goals (SDGs)

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DOI: https://doi.org/10.1557/PROC-758-LL1.8Licence: Unspecified

Cite this

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title = "Thermal and residual stress modelling of the selective laser sintering process",

abstract = "The production of functional tool steel components by selective laser sintering requires an understanding of the effects of the laser processing parameters on the microstructure evolution during the fabrication process. This would allow the production of tools that have predictable and reproducible microstructure, good mechanical properties and low residual stresses. In this paper, finite element modelling has been carried out to investigate the temperature distribution and residual stresses during laser sintering of hot-work tool steel powders. The effects of the laser power and scanning rate on the selective laser sintering process have been investigated. Thermal residual stresses accumulated during the process have been predicted and compared with strain measurements made using neutron diffraction.",

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T1 - Thermal and residual stress modelling of the selective laser sintering process

AU - Ibraheem, AK

AU - Derby, B

AU - Withers, PJ

PY - 2003

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N2 - The production of functional tool steel components by selective laser sintering requires an understanding of the effects of the laser processing parameters on the microstructure evolution during the fabrication process. This would allow the production of tools that have predictable and reproducible microstructure, good mechanical properties and low residual stresses. In this paper, finite element modelling has been carried out to investigate the temperature distribution and residual stresses during laser sintering of hot-work tool steel powders. The effects of the laser power and scanning rate on the selective laser sintering process have been investigated. Thermal residual stresses accumulated during the process have been predicted and compared with strain measurements made using neutron diffraction.

AB - The production of functional tool steel components by selective laser sintering requires an understanding of the effects of the laser processing parameters on the microstructure evolution during the fabrication process. This would allow the production of tools that have predictable and reproducible microstructure, good mechanical properties and low residual stresses. In this paper, finite element modelling has been carried out to investigate the temperature distribution and residual stresses during laser sintering of hot-work tool steel powders. The effects of the laser power and scanning rate on the selective laser sintering process have been investigated. Thermal residual stresses accumulated during the process have been predicted and compared with strain measurements made using neutron diffraction.

U2 - DOI: https://doi.org/10.1557/PROC-758-LL1.8

DO - DOI: https://doi.org/10.1557/PROC-758-LL1.8

M3 - Chapter

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EP - 52

BT - MRS Online Proceedings Library (OPL)

ER -