• PICALO 2008 Paper #1204 (Mechanism Analysis on Dry-Friction Abrasive Wear Resistance of Particulate Reinforced Mmc Coatings by Laser Deposition for Corrugated Rollers)

    Mechanism Analysis on Dry-Friction Abrasive Wear Resistance of Particulate Reinforced Mmc Coatings by Laser Deposition for Corrugated Rollers
    Authors:
    Zhaoyong Qian, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
    Minlin Zhong, Tsinghua University; Beijing Peoples Republic of China
    Wenjin Liu, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
    Mingxing Ma, Tsinghua University; Beijing Peoples Republic of China
    Chaofeng Wu, Tsinghua University; Beijing Peoples Republic of China
    Dongye Zhang, Tsinghua University; Beijing Peoples Republic of China
    Presented at PICALO 2...

    $28.00

  • PICALO 2008 Paper #1205 (Metal Matrix Nano H-Bn Self-Lubricating Composite Coating Synthesized by Nd:Yag Laser Cladding)

    Metal Matrix Nano H-Bn Self-Lubricating Composite Coating Synthesized by Nd:Yag Laser Cladding
    Authors:
    A.H. Wang, Huazhong University of Science and Technology; Wuhan Peoples Republic of China
    X.L. Zhang, Huazhong University of Science and Technology ; Wuhan Peoples Republic of China
    X.F. Zhang, Huazhong University of Science and Technology ; Wuhan Peoples Republic of China
    X.W. Xiong, Huazhong University of Science and Technology ; Wuhan Peoples Republic of China
    H.G. Xu, Huazhong University of Science and Technology ; Wuhan Peoples Republic of China
    C.S Xie, Huazhong University of Science and Technology ; Wuhan Peoples Republic of China<...>

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  • PICALO 2008 Paper #1207 (Laser Melt Injection of Monocrystalline WC Particles into Ti-6Al-4V)

    Laser Melt Injection of Monocrystalline WC Particles into Ti-6Al-4V
    Authors:
    Dejian Liu, Harbin Institute of Technology; Harbin Peoples Republic of China
    Fuquan Li, Harbin Institute of Technology; Harbin Peoples Republic of China
    Liqun Li, Harbin Institute of Technology; Harbin Peoples Republic of China
    Yanbin Chen, Harbin Institute of Technology; Harbin Peoples Republic of China
    Presented at PICALO 2008

    The laser melt injection (LMI) process was explored to produce WC particles (WCp) reinforced Ti-6Al-4V metal matrix composites (MMCs). In particular the high strength monocrystalline WC particles was used as injection particles to avoid the intercrysta...

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  • PICALO 2008 Paper #1208 (Residual Stress Distribution in Laser Alloying Zone with Fecsib Powder)

    Residual Stress Distribution in Laser Alloying Zone with Fecsib Powder
    Authors:
    Haiyan Zhao, Department of Mechanical Engineering, Tsinghua University ; Beijing Peoples Republic of China
    Zhengyang Li, Department of Mechanical Engineering, Tsinghua University; Beijing Peoples Republic of China
    Bin Zhang, Department of Mechanical Engineering, Tsinghua University; Beijing Peoples Republic of China
    Minlin Zhong, Department of Mechanical Engineering, Tsinghua University; Beijng Peoples Republic of China
    Yu Gu, Department of Mechanical Engineering, Tsinghua University; Beijing Peoples Republic of China
    Qiulin Wu, Beijing Beiye Functional Materials Co.Lt...

    $28.00

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  • PICALO 2008 Paper #202 (Colour Marking of Metals with Fibre Lasers)

    Colour Marking of Metals with Fibre Lasers
    Authors:
    Anthony Tse, A & P Instrument Co. Ltd; Kowloon Bay Hk Hong Kong
    Lu Ming, Spi Lasers; Southampton Great Britain
    Tony Hoult, Spi Lasers Llc; Santa Clara CA USA
    Presented at PICALO 2008

    Laser marking has become a standard industrial process. Recent refinements in laser source technology have enabled the development of colour marking of metals such as stainless steel. The high level of control of the localised heating required in the material can be achieved with a pulsed 20W laser capable of operating in the 20-500kHz range. The flexibility offered by the laser in terms of pulse shape, length and power enables an extensi...

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  • PICALO 2008 Paper #203 (Laser Producing Ni-Matrix Composite Reinforced by In-Situ Synthesized Particles)

    Laser Producing Ni-Matrix Composite Reinforced by In-Situ Synthesized Particles
    Authors:
    Mingxing Ma, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
    Jiannan Gu, Tsinghua University; Breijing Peoples Republic of China
    Minlin Zhong, Tsinghua University; Beijing Peoples Republic of China
    Ruiquan Kang, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
    Wenjin Liu, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
    Weiming Zhang , Tsinghua University; Beijing Peoples Republic of China
    Hongjun Zhang, Tsinghua University; Beijing Pe...

    $28.00

  • PICALO 2008 Paper #204 (Microstructure and Property of Ni-P-Nano Al2O3 Electroless Plating Layer Produced on Medium Carbon Steel Treated by Laser Technology)

    Microstructure and Property of Ni-P-Nano Al2O3 Electroless Plating Layer Produced on Medium Carbon Steel Treated by Laser Technology
    Authors:
    Fanzhi Kong, Zhejiang University of Technology; Hangzhou Peoples Republic of China
    Aihuan Dun, Zhejiang University of Technology; Hangzhou Peoples Republic of China
    Jianhua Yao, Zhejiang University of Technology; Hangzhou Peoples Republic of China
    Presented at PICALO 2008

    Uniform Ni-P-nano Al2O3 eletroless plating layer was produced on medium carbon steel, and scanned by high power continuous waveCWCO2 laser beam. Optical microscope (OM) and scanning electron microscopy (SEM) were used to observe the morphologies of coating...

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  • PICALO 2008 Paper #205 (Surface Modification of Dental Hard Tissues using Pulsed Uv Lasers (Invited Presentation))

    Surface Modification of Dental Hard Tissues using Pulsed Uv Lasers (Invited Presentation)
    Authors:
    Rui Vilar, Instituto Superior Tecnico; Lisboa Codex Portugal
    Victor Oliveira, Instituto Superior Técnico; Lisboa Portugal
    Presented at PICALO 2008

    In the presentation the surface texture, structural and chemical changes induced in human dental hard tissues (dentin and enamel) by laser processing with KrF excimer laser radiation will be analysed. In dentin, the evolution of surface topography depends on the orientation of the tubules in relation to the incoming laser beam and on the radiation fluence. For fluences larger than 1 J/cm2 the processed surface is flat and covered with a th...

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  • PICALO 2008 Paper #206 (Numerical and Experimental Investigation of Thermal Stresses and Distortions in the Induction Assisted Laser Cladding)

    Numerical and Experimental Investigation of Thermal Stresses and Distortions in the Induction Assisted Laser Cladding
    Authors:
    Dietrich Lepski, Fraunhofer Institute for Material and Beam Technology Iws; Dresden Germany
    Frank Brückner, Fraunhofer IWS Dresden; Dresden Germany
    Eckhard Beyer, Fraunhofer Institute for Material and Beam Technology Iws & Lot/Iof Dresden University of Technology; Dresden Germany
    Presented at PICALO 2008

    In the laser cladding process the powdery coating material is resorbed by the laser induced melt pool and strongly joint to the subjacent substrate. The very high gradients of the laser induced temperature field as well as density changes due ...

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