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TECHNICAL PAPERS

Laser Repetitive Pulse Heating of Steel Surface: A Material Response to Thermal Loading

[+] Author and Article Information
S. Z. Shuja, A. F. M. Arif, B. S. Yilbas

Department of Mechanical Engineering, King Fahd University of Petroleum and Minerals, Dhahran, Saudi Arabia

J. Manuf. Sci. Eng 124(3), 595-604 (Jul 11, 2002) (10 pages) doi:10.1115/1.1463033 History: Received April 01, 2000; Revised December 01, 2001; Online July 11, 2002
Copyright © 2002 by ASME
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References

Figures

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Geometric arrangement of impinging gas and workpiece
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(a) The results of grid independence tests based on spatial distribution of temperature at time 1.08 ms. The solid surface is at 0.002 m. (b) The results of grid independence tests based on temporal variation of surface temperature at the center of the heated spot. (c) Temporal variation of surface temperature at the center of the heated spot.
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(a) Equivalent stress contours (MPa) inside the substrate at different heating and cooling times for pulse type 1 (cooling period=0.5 pulse length). z=0.002 m is the free surface of the substrate. (b) Equivalent stress contours (MPa) inside the substrate at different heating and cooling times for pulse type 2 (cooling period=1.0 pulse length). z=0.002 m is the free surface of the substrate.
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(a) Temporal variation of maximum equivalent stress and its respective locations along the radial and axial directions in the workpiece for pulse type 1 and 2. (b) Temporal variation of temperature where equivalent stress is mazimum for pulse type 1 and 2.
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Temporal variation of radial stress at different z-locations in the substrate for pulse type 1
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Temporal variation of axial stress at different z-locations in the substrate for pulse type 1
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Temporal variation of equivalent stress at different z-locations in the substrate for pulse type 1

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