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  • PICALO 2006 Paper #802 (Non-conventional Laser Beam Geometries for Laser Transformation Hardening of Mild Steels)

    Non-conventional Laser Beam Geometries for Laser Transformation Hardening of Mild Steels
    Authors:
    Shakeel Safdar, The University of Manchester; Manchester Great Britain
    Lin Li, The University of Manchester; Manchester Great Britain
    M.A. Sheikh, The University of Manchester; Manchester Great Britain
    Zhu Liu, The University of Manchester; Manchester Great Britain
    Presented at PICALO 2006

    In transformation hardening of steels it is desirable to have a slow heating rate and a rapid cooling rate to achieve full transformation. To date laser transformation hardening has been carried out using circular or rectangular beams which result in rapid heating and coolin...

    $28.00

  • PICALO 2006 Paper #707 (Development of 3D SFF System using a New Selective Dual-Laser Sintering Process)

    Development of 3D SFF System using a New Selective Dual-Laser Sintering Process
    Authors:
    Kyung Hyun Choi, School of Mechanical Engineering at Cheju National University; Cheju -
    Young Jin Ahn, Korea Institute of Machinery & Materials; Daejeon Korea
    Byung Oh Choi, Korea Institute of Machinery & Materials ; Daejeon Korea
    Chung Hwan Kim, Korea Institute of Machinery & Materials ; Daejeon Korea
    Doog-Soo Kim, Korea Institute of Machinery & Materials; Daejeon Korea
    Young Jin Ahn, Korea Institute of Machinery & Materials; Daejeon Korea
    Presented at PICALO 2006

    Selective Laser Sintering (SLS) is currently recognized as a leading process...

    $28.00

  • PICALO 2006 Paper #705 (Laser Metal Deposition of TiAl Alloys)

    Laser Metal Deposition of TiAl Alloys
    Authors:
    Andreas Weisheit, Fraunhofer ILT; Aachen Germany
    Ingomar Kelbassa, Fraunhofer ILT; Aachen Germany
    Konrad Wissenbach, Fraunhofer ILT; Aachen Germany
    Presented at PICALO 2006

    Laser Metal Deposition (LMD) is a validated process for repairing aero engine parts and complete components. An increase of the specific efficiency of aero engines is achieved by replacement of heavy parts out of Nickel Base Alloys in the HPC (High Pressure Compressor) and LPT (Low Pressure Turbine) sectors by lightweight parts out of TiAl Alloys in operating temperature ranges from 450 up to 700 °C. Due to the use of these upcoming new materials and n...

    $28.00

  • PICALO 2006 Paper #704 (Reconditioning of Nickel Base HPT Blades and Vanes used in Aero Engines and Power Plant Gas Turbines by Combination of Direct Laser Forming, Laser Metal Deposition and Laser Drilling)

    Reconditioning of Nickel Base HPT Blades and Vanes used in Aero Engines and Power Plant Gas Turbines by Combination of Direct Laser Forming, Laser Metal Deposition and Laser Drilling
    Authors:
    Ernst Wolfgang Kreutz, Lehrstuhl für Lasertechnik der RWTH Aachen; Aachen Germany
    Ingomar Kelbassa, Fraunhofer ILT; Aachen Germany
    Konrad Wissenbach, Fraunhofer ILT; Aachen Germany
    Lena Trippe, Lehrstuhl für Lasertechnik der RWTH Aachen; Aachen Germany
    Wilhelm Meiners, Fraunhofer ILT; Aachen Germany
    Presented at PICALO 2006

    Parts like HPT (High Pressure Turbine) blades and vanes with integrated cooling channels cannot be repaired. The parts are replaced...

    $28.00

  • PICALO 2006 Paper #703 (Laser Near Net Shape Manufacturing for Nickel Alloy Parts with Complex Structure)

    Laser Near Net Shape Manufacturing for Nickel Alloy Parts with Complex Structure
    Authors:
    Henry Peng, GE Global Research Center; Shanghai Peoples Republic of China
    Xiaoping Huang, General Electrical; Shanghai Peoples Republic of China
    Yanmin Li, GE Global Research Center; Shanghai Peoples Republic of China
    Magdi Azer, GE Global Research Center; Niskayuna NY USA
    Presented at PICALO 2006

    To get near net-shape nickel alloy fabrication for complex turbine blade airfoil, process of laser consolidation is studied in two aspects. One is steady process analysis to establish transfer function between shape variables of weld pool and process parameters. Another one...

    $28.00

  • PICALO 2006 Paper #701 (Direct Metal Deposition: Environmentally Friendly Enabling Technology (Invited Presentation))

    Direct Metal Deposition: Environmentally Friendly Enabling Technology (Invited Presentation)
    Authors:
    H. Qi, CLAIM, The Univ. of Michigan; Ann Arbor MI USA
    Jyoti Mazumder, CLAIM, The University of Michigan; Ann Arbor MI USA
    S.J. Skerlos, CLAIM, The Univ. of Michigan; Ann Arbor Hills MI USA
    W.R. Morrow, CLAIM, The Univ. of Michigan; Ann Arbor MI USA
    B. Dutta, POM Group Inc.; Ann Arbor Hills MI USA
    Presented at PICALO 2006

    Direct Metal Deposition (DMD) is an enabling technology which can produce three dimensional parts directly from Computer Aided Design (CAD). This technology is being explored in wide variety of industry including tool and Die...

    $28.00

  • PICALO 2006 Paper #602 (Air-Clad Fibre Lasers)

    Air-Clad Fibre Lasers
    Authors:
    John Canning, OFTC; Sydney Australia
    M. Aslund, Optical Fibre Technology Centre, University of Sydney; Eveleigh, Sydney Australia
    S.D. Jackson, Optical Fibre Technology Centre, University of Sydney; Eveleigh, Sydney Australia
    J.S. Warwick, Optical Fibre Technology Centre, University of Sydney; Eveleigh, Sydney Australia
    K. Digweed, Optical Fibre Technology Centre, University of Sydney; Eveleigh, Sydney Australia
    S. Huntington, School of Physics, The University of Melbourne; Australia
    J.S. Holdsworth, School of Mathematical and Physical Sciences, University of Newcastle; NSW Australia
    Presented ...

    $28.00

  • PICALO 2006 Paper #601 (Diode Pumped 560mJ 400Hz 10ns All-solid-state Green MOPA System)

    Diode Pumped 560mJ 400Hz 10ns All-solid-state Green MOPA System
    Authors:
    Tang Chun, Institute of Applied Electronics; Miang Yang, Sichuan Peoples Republic of China
    Gao Qingsong, Institute of Applied Electronics, China Academy of Engineering Physics; Sichuan, China Peoples Republic of China
    Cai Zhen, Institute of Applied Electronics, China Academy of Engineering Physics; Sichuan Peoples Republic of China
    Tong Lixin, Institute of Applied Electronics, China Academy of Engineering Physics; Sichuan, China Peoples Republic of China
    Chen Xiaolin, Institute of Applied Electronics, China Academy of Engineering Physics; Sichuan Peoples Republic of China
    Tu B...

    $28.00

  • PICALO 2006 Paper #506 (Flux Free Joining of Zinc Coated Steel as Well as Steel/Aluminum through Laser and Controlled Short Arc Technology)

    Flux Free Joining of Zinc Coated Steel as Well as Steel/Aluminum through Laser and Controlled Short Arc Technology
    Authors:
    Johannes Wilden, Technical University Ilmenau; Neuhaus 1 Germany
    Jean Pierre Bergmann, Institute for Production Engineering, Technical University Ilmenau; Ilmenau Germany
    Markus Dolles, Institute for Production Engineering, Technical University Ilmenau; Ilmenau Germany
    Sven-F. Goecke, Institute for Production Engineering, Technical University Ilmenau; Ilmenau Germany
    Presented at PICALO 2006

    The steady development of short arc technology offers the unique chance to join metallic materials with minimized heat input. Due to the high dy...

    $28.00

  • PICALO 2006 Paper #505 (The Influence of High Power Diode Laser in Hybrid Laser-Controlled Dip Transfer GMA Welding)

    The Influence of High Power Diode Laser in Hybrid Laser-Controlled Dip Transfer GMA Welding
    Authors:
    Justino Mulima, University of Wollongong; Wollongong Australia
    Presented at PICALO 2006

    This paper describes an initial investigation of hybrid laser welding in conjunction with enhanced control short-circuiting techniques in Gas Metal Arc Welding (GMAW). A high power diode laser has been used together with controlled dip transfer, to improve deposition rate while achieving deep penetration, high welding speed and high quality butt welds in thin plain carbon steel sheet. The effect of the laser energy on the inherent control of the GMAW system is discussed and the results are compared with conv...

    $28.00

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