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Numerical study of heat transfer and phase change in a single metal particle of powdermaterial in application to selective laser sintering

Dayal, Ram and Gambaryan-Roisman, Tatiana and Abele, Eberhard (2011):
Numerical study of heat transfer and phase change in a single metal particle of powdermaterial in application to selective laser sintering.
In: Computational Thermal Sciences, by Begell House, pp. 169-177, 3, (3), [Article]

Abstract

The heat transfer and phase change induced by interaction between a spherical metal particle and pulsed laser source during liquid-phase sintering of metal powders is investigated numerically. The heat transfer model used for this study accounts for melting and resolidification occurring during heating and cooling phases of pulsed laser sintering. The particle surroundings are modeled as a continuum representing the loose powder. Evolution of temperature field and the phase change in the metal particle as well as its surroundings are discussed. The influence of laser pulse frequency, pulse duration, and powder particle size on the melting process are described.

Item Type: Article
Erschienen: 2011
Creators: Dayal, Ram and Gambaryan-Roisman, Tatiana and Abele, Eberhard
Title: Numerical study of heat transfer and phase change in a single metal particle of powdermaterial in application to selective laser sintering
Language: English
Abstract:

The heat transfer and phase change induced by interaction between a spherical metal particle and pulsed laser source during liquid-phase sintering of metal powders is investigated numerically. The heat transfer model used for this study accounts for melting and resolidification occurring during heating and cooling phases of pulsed laser sintering. The particle surroundings are modeled as a continuum representing the loose powder. Evolution of temperature field and the phase change in the metal particle as well as its surroundings are discussed. The influence of laser pulse frequency, pulse duration, and powder particle size on the melting process are described.

Journal or Publication Title: Computational Thermal Sciences, by Begell House
Volume: 3
Number: 3
Uncontrolled Keywords: pulsed laser sintering, metals, melting and resolidification, numerical simulation
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institute of Production Management, Technology and Machine Tools (PTW)
16 Department of Mechanical Engineering > Institute for Technical Thermodynamics (TTD)
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Date Deposited: 29 Jul 2011 09:07
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