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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 laserTaking three typical laser surface modification technologies—laser shock processing, laser quenching, and laser cladding—as examples, this study introduces the technical characteristics and applicationsurface 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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Process improvement in laser hot wire cladding for martensitic stainless steel based on the Taguchi method

Zilin HUANG,Gang WANG,Shaopeng WEI,Changhong LI,Yiming RONG

Frontiers of Mechanical Engineering 2016, Volume 11, Issue 3,   Pages 242-249 doi: 10.1007/s11465-016-0397-7

Abstract:

Laser hot wire cladding, with the prominent features of low heat input, high energy efficiency, andThe cladding process, however, needs to be improved by using a quantitative method.Laser deposition experiments with FV520B, one of martensitic stainless steels, were designed by usingFour process variables, namely, laser power (P), scanning speed (Vs), wire feedMetallurgic observation of cladding layer was conducted to compare the forming quality and to validate

Keywords： process optimization     Taguchi method     signal-to-noise (S/N) ratio     volumetric defect ratio     laser hot wirecladding    

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The Application and the Prospect of Remanufacturing Technologies in the Metallurgical Industry

Jie Xiong,Jian-cheng Fan,Jv Yuan

Frontiers of Engineering Management 2016, Volume 3, Issue 2,   Pages 165-170 doi: 10.15302/J-FEM-2016023

Abstract: Advanced surface engineering technologies and resistant coatings on the damaged surface can improve surfaceintroduces remanufacturing technologies, including electroplating, overlaying welding, thermal spraying and lasersurface cladding and their applications in the metallurgical industry, and analyzes the development

Keywords： remanufacturing technology     electroplating     overlaying welding     thermal spraying     laser surface cladding    

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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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Construction of nitrogen-doped carbon cladding LiMnO film electrode with enhanced stability for electrochemically

Frontiers of Chemical Science and Engineering 2023, Volume 17, Issue 12,   Pages 2050-2060 doi: 10.1007/s11705-023-2343-7

Abstract: In this work, we prepared a nitrogen-doped carbon cladding LMO (C-N@LMO) by polymerization of polypyrroleThe cladding layer not only acted as a protective layer but also functioned as a conductive shell, accelerating

Keywords： LiMn2O4     lithium extraction     surface coating     cyclic stability     Mn dissolution    

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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 attractiveHowever, the inferior surface quality of L-PBF components hinders its productization progress seriouslyThe causes of poor surface quality and differences in the microstructure and property of the surfacefeatures of L-PBF inner structures are presented to provide a perspective of their surface characteristicsweaknesses are summarized along with a discussion on the challenges and prospects for improving the interior surface

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

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Review on mechanism and process of surface polishing using lasers

Arun KRISHNAN, Fengzhou FANG

Frontiers of Mechanical Engineering 2019, Volume 14, Issue 3,   Pages 299-319 doi: 10.1007/s11465-019-0535-0

Abstract: Laser polishing is a technology of smoothening the surface of various materials with highly intense laserWhen these beams impact on the material surface to be polished, the surface starts to be melted due tomelted material is then relocated from the ‘peaks to valleys’ under the multidirectional action of surfaceparameters such as beam intensity, energy density, spot diameter, and feed rate, different rates of surfaceHigh precision polishing of surfaces can be done using laser process.

Keywords： laser polishing     surface roughness     process parameters     mechanism    

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Study on the Microstructure of Laser Clad NiCrAl-Ceramic Coating

Chen Qinghua,Wei Lun,Long Jinming,Li Junchang

Strategic Study of CAE 2001, Volume 3, Issue 10,   Pages 64-71

Abstract: sub> + TiB2)/NiCrAl metal-ceramic coating was fabricated on a steel (Chinese brand 40Cr) surfaceby laser.were introduced by an in-situ reaction of Al, B2O3 and TiO2 during lasercladding process.and hardness of the cladding layer.

Keywords： laser cladding     metal-ceramic coating     microstructure     phases     micro-hardness    

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Influence of the field humiture environment on the mechanical properties of 316L stainless steel repaired with Fe314

Lianzhong ZHANG, Dichen LI, Shenping YAN, Ruidong XIE, Hongliang QU

Frontiers of Mechanical Engineering 2018, Volume 13, Issue 4,   Pages 513-519 doi: 10.1007/s11465-018-0503-0

Abstract: The Fe314 cladding layer was mainly composed of equiaxed grains and mixed with randomly oriented columnarResults indicated that the hardness value of Fe314 cladding layer under different humiture environmentsThe field humiture environment also showed minimal impact on the average hardness of Fe314 cladding layersFurthermore, 316L stainless steel can be repaired through laser cladding by using Fe314 powder without

Keywords： laser cladding     repaired performance     tensile strength     temperature and humidity environment    

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Picosecond Laser Surface Texturing of a Stavax Steel Substrate for Wettability Control Article

Xincai Wang, Hongyu Zheng, Yinchi Wan, Wenhe Feng, Yee Cheong Lam

Engineering 2018, Volume 4, Issue 6,   Pages 816-821 doi: 10.1016/j.eng.2018.10.006

Abstract:

In this investigation, a picosecond laser was employed to fabricate surface textures on a Stavax steelThe wettability of the laser-textured Stavax steel surface was converted from its original hydrophilicityThe results clearly show that this super-hydrophobicity is mainly due to the surface textures.so as to lower the surface energy.The laser-induced surface textures on the metal mold substrates were then replicated onto polypropylene

Keywords： Picosecond laser     Surface texturing     Stavax steel     Polymer     Hydrophobicity    

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Dimethicone-aided laser cutting of solar rolled glass

Wenyuan LI, Guojun ZHANG, Long CHEN, Yu HUANG, Youmin RONG, Zhangrui GAO

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 111-121 doi: 10.1007/s11465-020-0615-1

Abstract: Solar rolled glass, with one micro-structure surface and another roughness surface, can cause diffuserefraction of the focused laser spot, and this phenomenon restricts the application of laser manufacturingwith the help of dimethicone to ensure laser focusing.The micro-defects on the processed surface were few, and the edge chipping width and depth of the laserprocessed surface were small.

Keywords： laser cutting     solar rolled glass     dimethicone     viscosity     surface quality    

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Analysis and comparison of laser cutting performance of solar float glass with different scanning modes

Wenyuan LI, Yu HUANG, Youmin RONG, Long CHEN, Guojun ZHANG, Zhangrui GAO

Frontiers of Mechanical Engineering 2021, Volume 16, Issue 1,   Pages 97-110 doi: 10.1007/s11465-020-0600-8

Abstract: Cutting quality and efficiency have always been important indicators of glass laser cutting.Laser scanning modes have two kinds, namely, the spiral and concentric circle scanning modes.The mechanism of the glass laser cutting under these two different scanning modes has been described.This parameter combination reduces the chipping area and sidewall surface roughness by 8.8% and 9.6%The analyses of surface topography, white spots, microstructures, and sidewall surface element composition

Keywords： laser cutting     solar float glass     scanning mode     surface quality     cutting efficiency    

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Ultra-Short Pulsed Laser Manufacturing and Surface Processing of Microdevices Review

Yongchao Yu, Shi Bai, Shutong Wang, Anming Hu

Engineering 2018, Volume 4, Issue 6,   Pages 779-786 doi: 10.1016/j.eng.2018.10.004

Abstract:

Ultra-short laser pulses possess many advantages for materials processing.Ultrafast laser has a significantly low thermal effect on the areas surrounding the focal point; thereforeDifferent surface treatments such as gold plating, reducedgraphene oxide (rGO) coating, and polyanilineThe processing mechanisms included laser ablation, laser reduction, and laser-induced surface nano-engineeringThese works demonstrate the attractive potential of ultra-short pulsed laser for surface precision manufacturing

Keywords： Ultra-short pulsed laser processing     Microdevices     Supercapacitor     Electronic tongue     Surface-enhanced Raman    

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Investigation and Development Status of the Application Technology to Improve Fatigue Behavior of High Strength Alloys

Zhao Zhenye

Strategic Study of CAE 2005, Volume 7, Issue 3,   Pages 90-94

Abstract:

Investigation and development status of the surface integrity application technology to improve fatigueFatigue behavior of the high strength alloys mentioned above is sensitive to surface stress concentration, as that in the case of a reduction in the surface integrity, their fatigue stress and stress corrosionFor example an increase of about 89% , in the tensile-tensile fatigue life for laser-shocked 7475-T761specimens and an improvement in da/dN of about 1500 times for laser-shocked 7070-T76 specimens were

Keywords： high strength alloys     surface integrity     laser-shocking     surface duplex hardening    

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Steady-state thermal-hydraulic analysis of SCWR assembly

LIU Xiaojing, CHENG Xu

Frontiers in Energy 2008, Volume 2, Issue 4,   Pages 475-478 doi: 10.1007/s11708-008-0093-3

Abstract: It is, therefore, highly required to calculate the cladding temperature accurately and to preserve thefuel rod cladding integrity under heat transfer deterioration conditions.

Keywords： cladding temperature     assembly     temperature     coolant     resistance    

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Title Author Date Type Operation

Development of Laser Surface Modification Technology

Zhang Qunli, Wang Liang, Mei Xuesong, Yao Jianhua

Journal Article

Process improvement in laser hot wire cladding for martensitic stainless steel based on the Taguchi method

Zilin HUANG,Gang WANG,Shaopeng WEI,Changhong LI,Yiming RONG

Journal Article

The Application and the Prospect of Remanufacturing Technologies in the Metallurgical Industry

Jie Xiong,Jian-cheng Fan,Jv Yuan

Journal Article

Hybrid forming mechanism of patternless casting and laser cladding

Zhongde SHAN, Fuzhen SUN, Yang LIU

Journal Article

Construction of nitrogen-doped carbon cladding LiMnO film electrode with enhanced stability for electrochemically

Journal Article

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

Journal Article

Review on mechanism and process of surface polishing using lasers

Arun KRISHNAN, Fengzhou FANG

Journal Article

Study on the Microstructure of Laser Clad NiCrAl-Ceramic Coating

Chen Qinghua,Wei Lun,Long Jinming,Li Junchang

Journal Article

Influence of the field humiture environment on the mechanical properties of 316L stainless steel repaired with Fe314

Lianzhong ZHANG, Dichen LI, Shenping YAN, Ruidong XIE, Hongliang QU

Journal Article

Picosecond Laser Surface Texturing of a Stavax Steel Substrate for Wettability Control

Xincai Wang, Hongyu Zheng, Yinchi Wan, Wenhe Feng, Yee Cheong Lam

Journal Article

Dimethicone-aided laser cutting of solar rolled glass

Wenyuan LI, Guojun ZHANG, Long CHEN, Yu HUANG, Youmin RONG, Zhangrui GAO

Journal Article

Analysis and comparison of laser cutting performance of solar float glass with different scanning modes

Wenyuan LI, Yu HUANG, Youmin RONG, Long CHEN, Guojun ZHANG, Zhangrui GAO

Journal Article

Ultra-Short Pulsed Laser Manufacturing and Surface Processing of Microdevices

Yongchao Yu, Shi Bai, Shutong Wang, Anming Hu

Journal Article

Investigation and Development Status of the Application Technology to Improve Fatigue Behavior of High Strength Alloys

Zhao Zhenye

Journal Article

Steady-state thermal-hydraulic analysis of SCWR assembly

LIU Xiaojing, CHENG Xu

Journal Article