• PICALO 2006 Paper #502 (Economic Edge Preparation for Laser-MAG Hybrid Welding of High Strength Steel)

    Economic Edge Preparation for Laser-MAG Hybrid Welding of High Strength Steel
    Authors:
    Ben Boese, Laser Zentrum Hannover E.V.; Hannover Germany
    Gerd Kuscher, Schweitechniche Lehr- und Versuchsanstalt Hannover gGmbH; Hannover Germany
    Presented at PICALO 2006

    In the crane and freight vehicle manufacturing industry, lightweight construction is a strong issue. A reduction of material thickness in extension arms of cranes or mobile concrete pumps leads to an increase of the number of segments possible and therefore to a longer reach and a higher payload. For these applications, a wide range of high strength fine grain steels for coarse plates has been developed. While these steels hav...

    $28.00

  • PICALO 2006 Paper #503 (Laser and Laser-hybrid Welding of Thick Sheet Aluminium and Steel)

    Laser and Laser-hybrid Welding of Thick Sheet Aluminium and Steel
    Authors:
    Claus Thomy, BIAS Bremer Institut fuer angewandte Strahltechnik; Bremen Germany
    Florian Wagner, BIAS Bremer Institut Fuer Angewandte Strahltechnik; Bremen Germany
    Frank Vollertsen, BIAS Bremer Institut fuer angewandte Strahltechnik; Bremen Germany
    Harald Kohn, BIAS Bremer Institut fuer angewandte Strahltechnik; Bremen Germany
    Schilf Matthias, BIAS Bremer Institut für angewandte Strahltechnik; Bremen Germany
    Thomas Seefeld, BIAS Bremer Institut fuer angewandte Strahltechnik; Bremen Germany
    Presented at PICALO 2006

    Laser and laser hybrid welding offer the po...

    $28.00

  • PICALO 2006 Paper #504 (The Influence of Joint Gap on the Strength of Hybrid Nd:YAG Laser-MIG Welds)

    The Influence of Joint Gap on the Strength of Hybrid Nd:YAG Laser-MIG Welds
    Authors:
    Marc Wouters, Luleå University of Technology; Luleå Sweden
    John Powell, Laser Expertise Ltd.; Nottingham Great Britain
    Alexander Kaplan, Lulea University of Technology; Lulea Sweden
    Presented at PICALO 2006

    This paper presents the results of an experimental and theoretical analysis of the effect of joint gap on the strength of hybrid laser-MIG welds. The welds were of the non-full penetration butt type with various joint gaps but identical weld penetration. Impact testing established that a zero gap gave a weak weld because the weld geometry contained the equivalent of a sharp crack ...

    $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

  • 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 #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 #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 #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 #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 #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

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