High-throughput laser peening of metals using a high-average-power Nd:glass laser system

被引:7
作者
Dane, CB [1 ]
Hackel, LA [1 ]
Halpin, JM [1 ]
Daly, J [1 ]
Harrisson, J [1 ]
Harris, F [1 ]
机构
[1] Univ Calif Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
来源
HIGH-POWER LASERS IN CIVIL ENGINEERING AND ARCHITECTURE | 2000年 / 3887卷
关键词
laser peening; shock compression; residual stress; stress corrosion cracking; laser-induced plasma;
D O I
10.1117/12.375187
中图分类号
TU [建筑科学];
学科分类号
0813 ;
摘要
Laser shot peening, a surface treatment for metals, is known to induce residual compressive stresses to depths of over 1mm 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.
引用
收藏
页码:211 / 221
页数:11
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