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Proceedings Paper

High-throughput laser peening of metals using a high-average-power Nd:glass laser system
Author(s): C. Brent Dane; Lloyd A. Hackel; John M. Halpin; James Daly; James Harrisson; Fritz B. Harris Jr.
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Paper Abstract

Laser shot peening, a surface treatment for metals, is known to induce residual compressive stresses to depths over 1 mm providing improved component resistance to various forms of failure. Recent information also suggests that thermal relaxation of the laser induced stress is significantly less than that experienced by other forms of surface stressing that involve significantly higher levels of cold work. We have developed a unique solid state laser technology employing Nd:glass amplifier slabs and SBS phase conjugation that enables this process to move into high throughput production processing.

Paper Details

Date Published: 14 January 2000
PDF: 11 pages
Proc. SPIE 3887, High-Power Lasers in Civil Engineering and Architecture, (14 January 2000); doi: 10.1117/12.375187
Show Author Affiliations
C. Brent Dane, Lawrence Livermore National Lab. (United States)
Lloyd A. Hackel, Lawrence Livermore National Lab. (United States)
John M. Halpin, Lawrence Livermore National Lab. (United States)
James Daly, Metal Improvement Corp. (United States)
James Harrisson, Metal Improvement Corp. (United States)
Fritz B. Harris Jr., Metal Improvement Corp. (United States)

Published in SPIE Proceedings Vol. 3887:
High-Power Lasers in Civil Engineering and Architecture
Sadao Nakai; Lloyd A. Hackel; Wayne C. Solomon, Editor(s)

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