Laser heating of sheet metal and thermal stress development

Ovais U. Khan; B. S. Yilbas

doi:10.1016/j.jmatprotec.2004.04.229

Laser heating of sheet metal and thermal stress development

Ovais U. Khan^*, B. S. Yilbas

^*Corresponding author for this work

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

35 Scopus citations

Abstract

Lasers are widely used in modifying metallic surfaces. During the laser heating process, thermal stresses develop in the region heated by a laser beam. In the present study, laser heating of sheet metal is formulated analytically and thermal stress field is obtained using a finite element method (FEM). It is found that laser scanning speed influences considerably temperature and stress fields. In this case, increasing laser scanning speed reduces temperature in the region away from the centre of the laser heat source. Stress components are compressive in the region close to the source; however, it becomes tensile in the region away from the heat source.

Original language	English
Pages (from-to)	2045-2050
Number of pages	6
Journal	Journal of Materials Processing Technology
Volume	155-156
Issue number	1-3
DOIs	https://doi.org/10.1016/j.jmatprotec.2004.04.229
State	Published - 30 Nov 2004

Bibliographical note

Funding Information:
The authors acknowledges the support of KFUPM during the course of this work.

Keywords

Laser
Moving heating source
Thermal stress

ASJC Scopus subject areas

Ceramics and Composites
Computer Science Applications
Metals and Alloys
Industrial and Manufacturing Engineering

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10.1016/j.jmatprotec.2004.04.229

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title = "Laser heating of sheet metal and thermal stress development",

abstract = "Lasers are widely used in modifying metallic surfaces. During the laser heating process, thermal stresses develop in the region heated by a laser beam. In the present study, laser heating of sheet metal is formulated analytically and thermal stress field is obtained using a finite element method (FEM). It is found that laser scanning speed influences considerably temperature and stress fields. In this case, increasing laser scanning speed reduces temperature in the region away from the centre of the laser heat source. Stress components are compressive in the region close to the source; however, it becomes tensile in the region away from the heat source.",

keywords = "Laser, Moving heating source, Thermal stress",

author = "Khan, {Ovais U.} and Yilbas, {B. S.}",

note = "Funding Information: The authors acknowledges the support of KFUPM during the course of this work.",

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AU - Khan, Ovais U.

AU - Yilbas, B. S.

N1 - Funding Information: The authors acknowledges the support of KFUPM during the course of this work.

PY - 2004/11/30

Y1 - 2004/11/30

N2 - Lasers are widely used in modifying metallic surfaces. During the laser heating process, thermal stresses develop in the region heated by a laser beam. In the present study, laser heating of sheet metal is formulated analytically and thermal stress field is obtained using a finite element method (FEM). It is found that laser scanning speed influences considerably temperature and stress fields. In this case, increasing laser scanning speed reduces temperature in the region away from the centre of the laser heat source. Stress components are compressive in the region close to the source; however, it becomes tensile in the region away from the heat source.

AB - Lasers are widely used in modifying metallic surfaces. During the laser heating process, thermal stresses develop in the region heated by a laser beam. In the present study, laser heating of sheet metal is formulated analytically and thermal stress field is obtained using a finite element method (FEM). It is found that laser scanning speed influences considerably temperature and stress fields. In this case, increasing laser scanning speed reduces temperature in the region away from the centre of the laser heat source. Stress components are compressive in the region close to the source; however, it becomes tensile in the region away from the heat source.

KW - Laser

KW - Moving heating source

KW - Thermal stress

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EP - 2050

JO - Journal of Materials Processing Technology

JF - Journal of Materials Processing Technology

IS - 1-3

ER -

Laser heating of sheet metal and thermal stress development

Abstract

Bibliographical note

Keywords

ASJC Scopus subject areas

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