Study into a numerical solution for a pulsed c02 laser heating process

Bekir S. Yilbas

doi:10.1080/10407789508913757

Study into a numerical solution for a pulsed c0₂ laser heating process

Bekir S. Yilbas

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The physical description of the process governing the laser machining mechanism is given by the Fourier equation, which describes the way in which the absorbed energy is transmitted throughout the irradiated material. This energy distribution process is characterized both by the thermophysicat properties and optical properties of material, which are functions of temperature. Completely analytic solutions to the Fourier equation are possible for the conduction-only case but impossible with the evaporation-controlled process. In the present study, a numerical solution is attempted for a pulsed C0₂ laser heating process, including heating, melting, and evaporation. In the analysis, the repetitive laser pulse heating process is considered and thermophysicat and optical properties are considered as temperature dependent.

Original language	English
Pages (from-to)	487-502
Number of pages	16
Journal	Numerical Heat Transfer; Part A: Applications
Volume	28
Issue number	4
DOIs	https://doi.org/10.1080/10407789508913757
State	Published - Oct 1995

Bibliographical note

Funding Information:
Received 26 October 1994; accepted 7 April 1995. The authors acknowledge the support of King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia, for this work. Address correspondence to Dr. Bekir S. Yilbag, Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia.

ASJC Scopus subject areas

Numerical Analysis
Condensed Matter Physics

Access to Document

10.1080/10407789508913757

Cite this

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abstract = "The physical description of the process governing the laser machining mechanism is given by the Fourier equation, which describes the way in which the absorbed energy is transmitted throughout the irradiated material. This energy distribution process is characterized both by the thermophysicat properties and optical properties of material, which are functions of temperature. Completely analytic solutions to the Fourier equation are possible for the conduction-only case but impossible with the evaporation-controlled process. In the present study, a numerical solution is attempted for a pulsed C02 laser heating process, including heating, melting, and evaporation. In the analysis, the repetitive laser pulse heating process is considered and thermophysicat and optical properties are considered as temperature dependent.",

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AB - The physical description of the process governing the laser machining mechanism is given by the Fourier equation, which describes the way in which the absorbed energy is transmitted throughout the irradiated material. This energy distribution process is characterized both by the thermophysicat properties and optical properties of material, which are functions of temperature. Completely analytic solutions to the Fourier equation are possible for the conduction-only case but impossible with the evaporation-controlled process. In the present study, a numerical solution is attempted for a pulsed C02 laser heating process, including heating, melting, and evaporation. In the analysis, the repetitive laser pulse heating process is considered and thermophysicat and optical properties are considered as temperature dependent.

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