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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)
Department装备制造技术研究室
Source PublicationScience China Technological Sciences
ISSN1674-7321
2015
Volume58Issue:7Pages:1154-1161
Indexed BySCI ; EI ; CSCD
EI Accession number20152600982965
WOS IDWOS:000357513300004
CSCD IDCSCD:5487571
Contribution Rank1
Funding OrganizationNational Hi-Tech Research and DevelopmentProgram of China (“863” Project) (Grant No. 2012AA041310)
KeywordYag Laser Laser Beam Peak Power Laser Peening
AbstractBecause 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.
Language英语
WOS HeadingsScience & Technology ; Technology
WOS SubjectEngineering, Multidisciplinary ; Materials Science, Multidisciplinary
WOS KeywordND-GLASS LASER ; MECHANICAL-PROPERTIES ; TITANIUM-ALLOY ; YAG LASER ; SHOCK ; FATIGUE ; MICROSTRUCTURE ; STEEL ; SYSTEM
WOS Research AreaEngineering ; Materials Science
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sia.cn/handle/173321/16463
Collection智能产线与系统研究室
Corresponding AuthorQiao HC(乔红超)
AffiliationShenyang Institute of Automation, Chinese Academy of Sciences, Shenyang, China
Recommended Citation
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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