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Influence of Particle Size on Laser Absorption and Scanning Track Formation Mechanisms of Pure TungstenPowder during Selective Laser Melting Article

Jiayao Zhang, Dongdong Gu, Ying Yang, Hongmei Zhang, Hongyu Chen, Donghuai Dai, Kaijie Lin

Engineering 2019, Volume 5, Issue 4,   Pages 736-745 doi: 10.1016/j.eng.2019.07.003

Abstract: by selective laser melting (SLM).layers, and surface morphology and geometric characteristics (e.g., contact angle, width and height of tracks, and remelted depth) of the laser scanning tracks is presented here.With an increase in particle size, the powder layer absorbs less laser energy.for the application of the ray-tracing model to predict the wetting and spreading ability of melted tracks

Keywords： Selective laser melting (SLM)     Tungsten     Ray-tracing model     Absorptivity     Laser scanning tracks    

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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.modes can achieve high-performance hole cutting of thick solar float glass using a 532-nm nanosecond laserThe mechanism of the glass laser cutting under these two different scanning modes has been described.Moreover, the best cutting efficiency scanning mode is 14.2% faster than that in the spiral scanning

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

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New kind of subarea-parallel scanning mode for laser metal deposition shaping

BIAN Hongyou, LIU Weijun, ZHAO Jibin

Frontiers of Mechanical Engineering 2007, Volume 2, Issue 4,   Pages 417-422 doi: 10.1007/s11465-007-0071-1

Abstract: A scanning mode is the key technology in a laser metal deposition shaping (LMDS) fabrication process.On the basis of the analysis of existing scanning modes and their influences on the fabrication efficiencyA new kind of subarea-parallel scanning mode for LMDS based on a subdividing profiled outline into monotonousSecond, the parallel scanning paths of all monotonous polygon subareas are finished, which diminishesthe length of the scanning line.

Keywords： scanning     parallel scanning     practical application     fabrication efficiency     LMDS    

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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 systemThe scanning ring facula’s mathematic model is established based on the temperature field’s superposinghardness 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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A Dual-Platform Laser Scanner for 3D Reconstruction of Dental Pieces Article

Shuming Yang, Xinyu Shi, Guofeng Zhang, Changshuo Lv

Engineering 2018, Volume 4, Issue 6,   Pages 796-805 doi: 10.1016/j.eng.2018.10.005

Abstract: paper presents a dual-platform scanner for dental reconstruction based on a three-dimensional (3D) laser-scanningThe scanner combines translation and rotation platforms to perform a holistic scanning.A hybrid calibration method for laser scanning is proposed to improve convenience and precision.

Keywords： Laser scanning     Hybrid calibration     Neural network     Dental pieces    

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Review of MEMS differential scanning calorimetry for biomolecular study

Shifeng YU, Shuyu WANG, Ming LU, Lei ZUO

Frontiers of Mechanical Engineering 2017, Volume 12, Issue 4,   Pages 526-538 doi: 10.1007/s11465-017-0451-0

Abstract:

Differential scanning calorimetry (DSC) is one of the few techniques that allow direct determinationbovine serum albumin denaturation study, the relationship between the melting point of lysozyme and the scanning

Keywords： differential scanning calorimetry     biomolecule     MEMS     thermodynamic    

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A Portable Noncontact Profile Scanning System for Aircraft Assembly

Bing Liang, Wei Liu, Kun Liu, Mengde Zhou, Yang Zhang, Zhenyuan Jia

Engineering 2022, Volume 15, Issue 8,   Pages 207-214 doi: 10.1016/j.eng.2020.09.017

Abstract:

Three-dimensional (3D) profile scanning plays a crucial role in the inspection of assembled largeThen, a profile-driven 3D automated scanning method and strategy are designed to rapidly scan and reconstructThe automated scanning process is completed in a timeframe of 208 s with an average error of less than

Keywords： Aircraft testing     Three-dimensional measurement     Profile reconstruction     Automated scanning     Scanning strategy    

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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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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, laserpower of 30 W, scanning speed of 3500 mm/s, and scanning hatch space of 0.2 mm.Thereafter, 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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NC flame pipe cutting machine tool based on open architecture CNC system

Xiaogen NIE, Yanbing LIU

Frontiers of Mechanical Engineering 2009, Volume 4, Issue 2,   Pages 147-152 doi: 10.1007/s11465-009-0025-x

Abstract: Based on the analysis of the principle and flame movement of a pipe cutting machine tool, a retrofit NC flame pipe cutting machine tool (NFPCM) that can meet the demands of cutting various pipes is proposed. The paper deals with the design and implementation of an open architecture CNC system for the NFPCM, many of whose aspects are similar to milling machines; however, different from their machining processes and control strategies. The paper emphasizes on the NC system structure and the method for directly creating the NC file according to the cutting type and parameters. Further, the paper develops the program and sets up the open and module NC system.

Keywords： flame pipe cutting     flame incision tracks     CNC     open architecture CNC system    

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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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Programmable Adaptive Security Scanning for Networked Microgrids Article

Zimin Jiang, Zefan Tang, Peng Zhang, Yanyuan Qin

Engineering 2021, Volume 7, Issue 8,   Pages 1087-1100 doi: 10.1016/j.eng.2021.06.007

Abstract: In this study, a programmable adaptive security scanning (PASS) approach is presented to protect DER

Keywords： Networked microgrids     Programmable adaptive security scanning     Coordinated detection     Software defined    

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Title Author Date Type Operation

Influence of Particle Size on Laser Absorption and Scanning Track Formation Mechanisms of Pure TungstenPowder during Selective Laser Melting

Jiayao Zhang, Dongdong Gu, Ying Yang, Hongmei Zhang, Hongyu Chen, Donghuai Dai, Kaijie Lin

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

New kind of subarea-parallel scanning mode for laser metal deposition shaping

BIAN Hongyou, LIU Weijun, ZHAO Jibin

Journal Article

Temperature field simulation of laser homogenizing equipment

Juanjuan WANG, Yunshan WANG, Fudong ZHU

Journal Article

A Dual-Platform Laser Scanner for 3D Reconstruction of Dental Pieces

Shuming Yang, Xinyu Shi, Guofeng Zhang, Changshuo Lv

Journal Article

Review of MEMS differential scanning calorimetry for biomolecular study

Shifeng YU, Shuyu WANG, Ming LU, Lei ZUO

Journal Article

A Portable Noncontact Profile Scanning System for Aircraft Assembly

Bing Liang, Wei Liu, Kun Liu, Mengde Zhou, Yang Zhang, Zhenyuan Jia

Journal Article

Development of Laser Cutting and Joining Processing

Chen Li, Gong Shuili, He Enguang

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

NC flame pipe cutting machine tool based on open architecture CNC system

Xiaogen NIE, Yanbing LIU

Journal Article

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

Journal Article

Programmable Adaptive Security Scanning for Networked Microgrids

Zimin Jiang, Zefan Tang, Peng Zhang, Yanyuan Qin

Journal Article