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A New Type of Q-switched and Frequency-doubling Green Laser

Chen Fei,Huo Yujing,He Shufang,Feng Lichun

Strategic Study of CAE 2000, Volume 2, Issue 4,   Pages 39-42

Abstract:

A new type of LD pumped Nd： YV04- KTP Q-switched green laser is demonstrated.electro-optic Q-switcher and a frequency-doubling crystal in type II phase matching for generating pulsed greenSpecial temperature control technique and aspherical lens with smaller focus length were used in the laserThese measures improved the laser efficiency, output power and laser beam direction stability.Green power with up to 762 W peak output and 12 ns pulse width was obtained.

Keywords： KTP     green laser     electro-optic Q-switcher     frequency-doubling    

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Energy field-assisted high-speed dry milling green machining technology for difficult-to-machine metal

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 2, doi: 10.1007/s11465-022-0744-9

Abstract: High-speed dry milling has emerged as a typical green processing technology due to its high processingThe introduction of advanced energy-field-assisted green processing technology can improve the machinabilityThe laser energy field, ultrasonic energy field, and cryogenic minimum quantity lubrication energy fieldsmilling are summarized in detail, providing feasible ideas for realizing multi-energy field collaborative green

Keywords： difficult-to-machine metal material     green machining     high-speed dry milling     laser energy field-assisted    

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Development of optically pumped XeF(C-A) laser

Yu Li,Liu Jingru,Yi Aiping,Ma Lianying,Li Hui,Huang Chao,An Xiaoxia,Chen Guangyu,Zhu Feng,Ye Xisheng

Strategic Study of CAE 2009, Volume 11, Issue 9,   Pages 38-43

Abstract:

The achievements of the optically pumped XeF(C-A) laser technology inAn optically pumped XeF(C-A) laser with 0.1~1 Hz pulse-repetition mode is developed.up to 18.7 J, which corresponds to the conversion efficiency of the stored electrical energy to the laserTo our knowledge, it is the first report on a photolytically pumped XeF(C-A) laser with repetition modeThe XeF(C-A) laser spectrum linewidth is compressed less than 1 nm.

Keywords： XeF(C-A) laser     optical pumping     blue-green laser     repetition rate     compressing linewidth    

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Development of Laser Cutting and Joining Processing

Chen Li, Gong Shuili, He Enguang

Strategic Study of CAE 2020, Volume 22, Issue 3,   Pages 78-84 doi: 10.15302/J-SSCAE-2020.03.012

Abstract:

Laser cutting and joining technology is indispensable as an advancedbe surely promoted by the integration of laser technology and digital manufacturing technology.joining and cutting technology, namely, laser welding, laser cutting, laser drilling, and laser markingThe problems faced by the development of the laser joining and cutting technology are discussed.unit, laser materials processing, and intelligent integration.

Keywords： laser material processing     laser welding     laser cutting     laser drilling     laser marking    

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Temperature field simulation of laser homogenizing equipment

Juanjuan WANG, Yunshan WANG, Fudong ZHU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 1,   Pages 49-52 doi: 10.1007/s11465-009-0005-1

Abstract: The laser homogenizing equipment was devised using the ring scanning principle.A laser scanning ring facula is obtained when the laser beam goes through the equipment’s optical systemhardness layer and better process quality can be attained using the ring facula optimized for metal laser

Keywords： laser homogenizing technology     laser scanning ring facula     temperature field    

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Strategic Research on China’s Laser Technology and Its Application by 2035

Research Group of Strategic Research on China’s Laser Technology and Its Application by 2035

Strategic Study of CAE 2020, Volume 22, Issue 3,   Pages 1-6 doi: 10.15302/J-SSCAE-2020.03.001

Abstract:

To promote the development of laser technology and its application, theAcademy of Engineering launched a major consulting project “Strategic Research on China’s LaserIt briefly analyzes laser technology and its instrumental, leading, and disruptive role in scientificinnovation ecology of laser industry.cultivation of the laser and optical disciplines.

Keywords： laser technology，laser manufacturing，laser communication，laser diagnosis and treatment    

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Processing parameter optimization of fiber laser beam welding using an ensemble of metamodels and MOABC

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 4, doi: 10.1007/s11465-022-0703-5

Abstract: In fiber laser beam welding (LBW), the selection of optimal processing parameters is challenging andEM constructs the correlation between processing parameters (laser power, welding speed, and distance

Keywords： laser beam welding     parameter optimization     metamodel     multi-objective    

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Development of lunar regolith composite and structure via laser-assisted sintering

Frontiers of Mechanical Engineering doi: 10.1007/s11465-021-0662-2

Abstract: In this paper, a laser-assisted additive manufacturing process is developed to fabricate lunar regolithcombination of composite material compositions and process parameters are mixing ratio of 50/50 in volume, laserThereafter, the mechanical properties of laser-sintered lunar regolith composites are implemented toThe effectiveness and the feasibility of this laser-assisted process are potentially developed for future

Keywords： in situ manufacturing     laser-assisted powder fusion process     mechanical properties     topological    

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Development of Laser Surface Modification Technology

Zhang Qunli, Wang Liang, Mei Xuesong, Yao Jianhua

Strategic Study of CAE 2020, Volume 22, Issue 3,   Pages 71-77 doi: 10.15302/J-SSCAE-2020.03.010

Abstract:

The laser surface modification technology uses high-energy-density laserAfter decades of development, laser surface modification technology has been widely applied to aerospaceTaking three typical laser surface modification technologies—laser shock processing, laser quenchingsurface modification, on-site laser remanufacturing, laser shock processing with controlled shape andperformance, intelligent laser surface modification, and laser surface micro-structure preparation.

Keywords： laser surface modification     laser shock processing     laser quenching     laser cladding     development trend    

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Advances in polishing of internal structures on parts made by laser-based powder bed fusion

Frontiers of Mechanical Engineering 2023, Volume 18, Issue 1, doi: 10.1007/s11465-022-0724-0

Abstract: Considering the manufacturing of inner structures, laser-based powder bed fusion (L-PBF) is an attractive

Keywords： laser-based powder bed fusion     polishing     internal structures     surface quality     surface features     post    

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zone-layered trimming method for ceramic core of aero-engine blade based on an advanced reconfigurable laser

Frontiers of Mechanical Engineering 2022, Volume 17, Issue 2, doi: 10.1007/s11465-022-0675-5

Abstract: This paper proposes an ultrafast laser processing system for trimming complex ceramic structural partsOpto-electromechanical cooperative control software is developed to control the laser processing systemThe results show that the laser system and the method proposed in this paper are suitable for trimming

Keywords： ceramic parts trimming     computer-aided laser manufacturing     3D vision     reconfigurable laser processing    

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Hybrid forming mechanism of patternless casting and laser cladding

Zhongde SHAN, Fuzhen SUN, Yang LIU

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 4,   Pages 393-401 doi: 10.1007/s11465-019-0550-1

Abstract: The method combines digital patternless casting and high-power laser cladding.Results prove that the laser cladding layer exceeds HRC60 (Rockwell hardness) and thus meets the production

Keywords： patternless casting     laser cladding     hybrid forming     rapid tooling    

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Medical Application and Industrial Development Strategy of Laser Technology in China

Qiu Haixia, Li buhong, Ma Hui, Wei Xunbei, Yang Sihua, Li Yang, Tan Yizhou, Chen Defu, Zhao Hongyou, Zeng Jing, Gu Ying

Strategic Study of CAE 2020, Volume 22, Issue 3,   Pages 14-20 doi: 10.15302/J-SSCAE-2020.03.003

Abstract:

Laser diagnosis and treatment technology has been successfully appliedThis article focuses on the medical application of laser technology and summarizes the development statusThe study revealed that China’s laser medicine has made great progress in terms of laser treatment, the clinical application of laser medical technology is still catching up with the global trend.of national science and technology innovation platforms for laser medicine; develop regulations on laser

Keywords： laser technology     medicine     laser diagnosis     laser therapy     laser industry    

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Orientation effect of electropolishing characteristics of 316L stainless steel fabricated by laser powder

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 3,   Pages 580-592 doi: 10.1007/s11465-021-0633-7

Abstract: effect of electropolishing characteristics on different surfaces of 316L stainless steel fabricated by laserelectropolishing characteristics on the different surfaces corresponding to the building orientation in selective laser

Keywords： electropolishing     laser powder bed fusion     316L stainless steel     corrosion resistance     microstructure    

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Development Trend of Ultrafast and Ultraintense Lasers and Their Scientific Application

Liu Jun, Zeng Zhinan, Liang Xiaoyan, Leng Yuxin, Li Ruxin

Strategic Study of CAE 2020, Volume 22, Issue 3,   Pages 42-48 doi: 10.15302/J-SSCAE-2020.03.007

Abstract: The ultrafast and ultraintense laser is one of the important tools for frontier fundamental researchpromoting market application, hoping to provide references for the steady development of China’s laser

Keywords： ultraintense and ultrashort laser     femtosecond laser     attosecond laser     petawatt laser     development trend    

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Title Author Date Type Operation

A New Type of Q-switched and Frequency-doubling Green Laser

Chen Fei,Huo Yujing,He Shufang,Feng Lichun

Journal Article

Energy field-assisted high-speed dry milling green machining technology for difficult-to-machine metal

Journal Article

Development of optically pumped XeF(C-A) laser

Yu Li,Liu Jingru,Yi Aiping,Ma Lianying,Li Hui,Huang Chao,An Xiaoxia,Chen Guangyu,Zhu Feng,Ye Xisheng

Journal Article

Development of Laser Cutting and Joining Processing

Chen Li, Gong Shuili, He Enguang

Journal Article

Temperature field simulation of laser homogenizing equipment

Juanjuan WANG, Yunshan WANG, Fudong ZHU

Journal Article

Strategic Research on China’s Laser Technology and Its Application by 2035

Research Group of Strategic Research on China’s Laser Technology and Its Application by 2035

Journal Article

Processing parameter optimization of fiber laser beam welding using an ensemble of metamodels and MOABC

Journal Article

Development of lunar regolith composite and structure via laser-assisted sintering

Journal Article

Development of Laser Surface Modification Technology

Zhang Qunli, Wang Liang, Mei Xuesong, Yao Jianhua

Journal Article

Advances in polishing of internal structures on parts made by laser-based powder bed fusion

Journal Article

zone-layered trimming method for ceramic core of aero-engine blade based on an advanced reconfigurable laser

Journal Article

Hybrid forming mechanism of patternless casting and laser cladding

Zhongde SHAN, Fuzhen SUN, Yang LIU

Journal Article

Medical Application and Industrial Development Strategy of Laser Technology in China

Qiu Haixia, Li buhong, Ma Hui, Wei Xunbei, Yang Sihua, Li Yang, Tan Yizhou, Chen Defu, Zhao Hongyou, Zeng Jing, Gu Ying

Journal Article

Orientation effect of electropolishing characteristics of 316L stainless steel fabricated by laser powder

Journal Article

Development Trend of Ultrafast and Ultraintense Lasers and Their Scientific Application

Liu Jun, Zeng Zhinan, Liang Xiaoyan, Leng Yuxin, Li Ruxin

Journal Article