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Study and development of high peak power short pulse Nd:YAG laser for peening applications
Qiao HC(乔红超); Zhao JB(赵吉宾); Yang H(杨灏)
作者部门装备制造技术研究室
关键词Yag Laser Laser Beam Peak Power Laser Peening
发表期刊Science China Technological Sciences
ISSN1674-7321
2015
卷号58期号:7页码:1154-1161
收录类别SCI ; EI ; CSCD
EI收录号20152600982965
WOS记录号WOS:000357513300004
CSCD记录号CSCD:5487571
产权排序1
资助机构National Hi-Tech Research and DevelopmentProgram of China (“863” Project) (Grant No. 2012AA041310)
摘要Because short pulse Nd:YAG laser of nanosecond pulse-width and high peak power has a unique capability to improve the mechanical properties of metal parts, a study on the development of high peak power short pulse from Nd:YAG laser along with its peening application has been performed. The design scheme of laser and the characteristic of laser beam transmission are presented and discussed. A pulse energy of 25 J with 15 ns pulse-width and a maximum peak power of 1660 kW laser system which use one oscillation and eight amplifiers has been achieved. Laser beam has a max divergence angle of 0.03 mrad, a pulse-to-pulse pulse-width stability of ±0.1 ns, and the pulse-to-pulse energy stability factors of less than ±2.8%. A low value of divergence means an easier modification of a nearly hat-top laser beam intensity profile and an easier transmission of laser beam. To evaluate the performance of the laser system, several metal materials are processed. Laser peening quality and efficiency are analyzed by using an optical microscope, a transmission electron microscope, and an X-ray diffraction device. The processing results show that the performance of this laser system is excellent.
语种英语
WOS标题词Science & Technology ; Technology
WOS类目Engineering, Multidisciplinary ; Materials Science, Multidisciplinary
关键词[WOS]ND-GLASS LASER ; MECHANICAL-PROPERTIES ; TITANIUM-ALLOY ; YAG LASER ; SHOCK ; FATIGUE ; MICROSTRUCTURE ; STEEL ; SYSTEM
WOS研究方向Engineering ; Materials Science
引用统计
文献类型期刊论文
条目标识符http://ir.sia.cn/handle/173321/16463
专题装备制造技术研究室
通讯作者Qiao HC(乔红超)
作者单位Shenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
推荐引用方式
GB/T 7714
Qiao HC,Zhao JB,Yang H. Study and development of high peak power short pulse Nd:YAG laser for peening applications[J]. Science China Technological Sciences,2015,58(7):1154-1161.
APA Qiao HC,Zhao JB,&Yang H.(2015).Study and development of high peak power short pulse Nd:YAG laser for peening applications.Science China Technological Sciences,58(7),1154-1161.
MLA Qiao HC,et al."Study and development of high peak power short pulse Nd:YAG laser for peening applications".Science China Technological Sciences 58.7(2015):1154-1161.
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