Quasi-Dammann grating with proportional intensity of array spots for surface hardening of metal

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	Quasi-Dammann grating with proportional intensity of array spots for surface hardening of metal
	Li SX(李少霞); Tan QF; Yu G(虞钢); Wang HH(王恒海); Jin GF
刊名	Science China-Physics Mechanics & Astronomy
	2011
通讯作者邮箱	gyu@imech.ac.cn
卷号	54 期号:1 页码:79-83
关键词	Quasi Dammann Grating Beam Shaping Laser Surface Hardening Diffraction Ductile Iron Phase
ISSN号	1674-7348
通讯作者	Yu, G (reprint author), Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China
产权排序	[Li ShaoXia; Yu Gang; Wang HengHai] Chinese Acad Sci, Inst Mech, Key Lab Mech Adv Mfg, Beijing 100190, Peoples R China; [Li ShaoXia; Tan QiaoFeng; Jin GuoFan] Tsinghua Univ, State Key Lab Precis Measurement Technol & Instru, Beijing 100084, Peoples R China; [Wang HengHai] China Elect Technol Grp Corp, Res Inst 14, Nanjing 210039, Peoples R China
合作状况	国内
中文摘要	For surface hardening of metal, a quasi-Dammann grating (QDG) is proposed and fabricated to generate array spots with proportional-intensity distribution. To get uniformly hardened band distribution and improve the wear resistance of the sample surface, a three-order QDG is designed to produce array spots with enhanced intensity in the edge. The design and fabrication of the QDG are described in detail. The surface profile of the fabricated grating was measured, which shows that the fabrication error is less than 2%. The laser beam intensity distribution shaped by the QDG was tested by a laser beam analyzer to verify the validity of the QDG. The application of the QDG in the laser surface hardening of metal was experimentally investigated, and the results show that the hardness distribution of the modified layer and the wear resistance of the sample surface are improved significantly by using the QDG.
学科主题	Physics
分类号	二类/Q3
类目[WOS]	Physics, Multidisciplinary
研究领域[WOS]	Physics
关键词[WOS]	DUCTILE IRON ; PHASE
收录类别	SCI ; EI
资助信息	This work was supported by the National Natural Science Foundation of China (Grant No. 10832011) and the National Science Foundation for Post-doctoral Scientists of China (Grant No. 20100470139).
原文出处	http://dx.doi.org/10.1007/s11433-010-4168-x
语种	英语
WOS记录号	WOS:000287765900011
公开日期	2012-04-01
内容类型	期刊论文
源URL	[http://dspace.imech.ac.cn/handle/311007/45143]
专题	力学研究所_先进制造工艺力学重点实验室
推荐引用方式 GB/T 7714	Li SX,Tan QF,Yu G,et al. Quasi-Dammann grating with proportional intensity of array spots for surface hardening of metal[J]. Science China-Physics Mechanics & Astronomy,2011,54(1):79-83.
APA	Li SX,Tan QF,Yu G,Wang HH,&Jin GF.(2011).Quasi-Dammann grating with proportional intensity of array spots for surface hardening of metal.Science China-Physics Mechanics & Astronomy,54(1),79-83.
MLA	Li SX,et al."Quasi-Dammann grating with proportional intensity of array spots for surface hardening of metal".Science China-Physics Mechanics & Astronomy 54.1(2011):79-83.