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Single-row laser beam with energy strengthened ends for continuous scanning laser surface hardening of large metal components
Li SX(李少霞); Yu G(虞钢); Zhang JC; Tan QF; Xu NH; Sun PP(孙培培); Zheng CY(郑彩云); Tan QiaoFeng
2013-06-01
发表期刊SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY
卷号56期号:6页码:1074-1078
ISSN1674-7348
摘要For laser surface hardening of metal components with large superficies, a binary grating is proposed to generate single-row laser beam with proportional-intensity diffractive orders. To obtain a uniform hardened band distribution and improve the wear resistance of the sample surface, the binary grating is designed to produce single-row laser beam with energy strengthened at the two ends. The profile of the laser beam spot was designed to be strip with high length-width ratio to improve the machining efficiency of the hardening of large surfaces. A new advantage is suggested to obtain proportional intensity spots with evenness. The design results show that the diffractive efficiency of the binary grating is more than 70%, and the uniformity is less than 3%. The surface profile of the grating fabricated was measured, which shows that the fabrication error is less than 2%. The application of the binary grating in the laser surface hardening of metal components with large superficies is experimentally investigated, and the results show that the hardness distribution of the modified layer is more uniform than that hardened by Gaussian laser beam or array spots with equal intensity distribution.
关键词Binary Grating Beam Shaping Laser Surface Hardening Diffraction
学科领域制造工艺力学
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收录类别SCI ; EI
语种英语
WOS记录号WOS:000319072700004
项目资助者This work was supported by the China Postdoctoral Science Foundation Funded Project (Grant No. 201104092).
课题组名称MAM激光智能制造工艺力学
论文分区二类/Q3
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被引频次:5[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://dspace.imech.ac.cn/handle/311007/47287
专题先进制造工艺力学重点实验室
通讯作者Tan QiaoFeng
推荐引用方式
GB/T 7714
Li SX,Yu G,Zhang JC,et al. Single-row laser beam with energy strengthened ends for continuous scanning laser surface hardening of large metal components[J]. SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,2013,56(6):1074-1078.
APA Li SX.,Yu G.,Zhang JC.,Tan QF.,Xu NH.,...&Tan QiaoFeng.(2013).Single-row laser beam with energy strengthened ends for continuous scanning laser surface hardening of large metal components.SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY,56(6),1074-1078.
MLA Li SX,et al."Single-row laser beam with energy strengthened ends for continuous scanning laser surface hardening of large metal components".SCIENCE CHINA-PHYSICS MECHANICS & ASTRONOMY 56.6(2013):1074-1078.
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