• PICALO 2008 Paper #705 (Enhancement of Laser Welding Capabilities by Hybridization or Combination of Different Processes)

    Enhancement of Laser Welding Capabilities by Hybridization or Combination of Different Processes
    Authors:
    Dirk Petring, Fraunhofer ILT; Aachen Germany
    Presented at PICALO 2008

    The laser welding process is the most flexible fusion welding process industrially available. This is mainly due to the excellent variability of lasers spatial and temporal power distribution down to very small geometries and time scales. The result is high flexibility regarding e.g. weldable materials, achievable penetration depths and possible seam and joint configurations and thereby a big potential for application-specific process optimization. The degree of freedom for optimization is further enhanced and process ...

    $28.00

  • PICALO 2008 Paper #704 (Spot Joining of Magnesium using Laser Assisted Self-Pierce Riveting Technology)

    Spot Joining of Magnesium using Laser Assisted Self-Pierce Riveting Technology
    Authors:
    Wei (William) Song, Cast Cooperative Research Centre, Swinburne University of Technology; Hawthorn Australia
    Yvonne Durandet, Cast Cooperative Research Centre, Swinburne University of Technology; Hawthorn Australia
    Brian Dempster, Cast Cooperative Research Centre, Swinburne University of Technology; Hawthorn Australia
    Milan Brandt, Cast Cooperative Research Centre, Swinburne University of Technology; Hawthorn Australia
    Stuart Blacket, Henrob (Uk) Pty Ltd; Geebung Australia
    Presented at PICALO 2008

    Spot joining of aluminium intensive vehicle bodies using sel...

    $28.00

  • PICALO 2008 Paper #702 (Comparison of Weldability in Nd:Yag-Gmaw Hybrid Welding of Sus316L and Xm-19 Stainless Steels)

    Comparison of Weldability in Nd:Yag-Gmaw Hybrid Welding of Sus316L and Xm-19 Stainless Steels
    Authors:
    Xudong Zhang, Hitachi Ltd., Materials Research Lab.; Hitachi-Shi, Ibaraki-Ken Japan
    Eiji Ashida, Hitachi Ltd., Materials Research Lab.; Hitachi-Shi, Ibaraki-Ken Japan
    Xiangjun Luo, Hitachi-Ge Nuclear Energy, Ltd.; Hitachi-Shi, Ibaraki-Ken Japan
    Noriaki Gotou, Hitachi-Ge Nuclear Energy, Ltd.; Hitachi-Shi, Ibaraki-Ken Japan
    Presented at PICALO 2008

    Laser-arc hybrid welding is prospectively considered as a high-efficiency and high-quality welding method for medium and thick section steels. SUS316L and XM-19 stainless steels are widely used in components and ...

    $28.00

  • PICALO 2008 Paper #701 (Studies on the Effect of Welding Current in Laser-Plasma Arc Hybrid Welding of an Al-Li Alloy)

    Studies on the Effect of Welding Current in Laser-Plasma Arc Hybrid Welding of an Al-Li Alloy
    Authors:
    Baohua Chang, Tsinghua University; Beijing Peoples Republic of China
    Jing Zhou, Tsinghua University; Beijing Peoples Republic of China
    Zhining Li, Tsinghua University; Beijing Peoples Republic of China
    Dong Du, Tsinghua University; Beijing Peoples Republic of China
    Presented at PICALO 2008

    Laser-plasma arc hybrid welding has high intensity heat source, high welding speed and good gap-bridging capability, and it is a promising technology in production of thin-walled structure of aluminum alloy in aerospace industry. This paper aims to solve the weld poros...

    $28.00

  • PICALO 2008 Paper #609 (Microstructure and Corrosion Behavior of Laser Welds Between Dissimilar Stainless Steels)

    Microstructure and Corrosion Behavior of Laser Welds Between Dissimilar Stainless Steels
    Authors:
    Chi Tat Kwok, University of Macau; Taipa Macau Peoples Republic of China
    S.L. Fong, University of Macau; Taipa, Macau Peoples Republic of China
    F.T. Cheng, The Hong Kong Polytechnic University; Hung Hom, Kowloon Hong Kong
    H.C. Man, The Hong Kong Polytechnic University; Hung Hom, Kowloon Hong Kong
    Presented at PICALO 2008

    In recent years, laser beam welding becomes very popular in joining dissimilar materials for improving performance and reducing cost of the engineering components because of its accuracy, precision, repeatability and low distortion. In the ...

    $28.00

  • PICALO 2008 Paper #607 (Effect of Zinc Coating Thickness in Gap-Free Laser Welding of Galvanized Sheet Steels )

    Effect of Zinc Coating Thickness in Gap-Free Laser Welding of Galvanized Sheet Steels
    Authors:
    Ian M Richardson, Delft University of Technology; Delft Netherlands
    Yu Pan, Netherlands Institute for Metals Research; Delft Netherlands
    Presented at PICALO 2008

    Laser beam welding has been used for joining zinc coated steel in the automotive industry. However, overlap laser welding of these steels is considered to be difficult because of the low boiling temperature of the zinc compared with the melting temperature of the steel. To date welding is normally undertaken when a gap is present between the plates, introduced prior to welding, or when welding with a modified laser beam configu...

    $28.00

  • PICALO 2008 Paper #606 (Gas Jet Effect on the Molten Bath Movements Produced during Deep Penetration Laser Welding)

    Gas Jet Effect on the Molten Bath Movements Produced during Deep Penetration Laser Welding
    Authors:
    El-Hachemi Amara, Advanced Technologies Development Centre (CDTA); Algiers Algeria
    Remy Fabbro, LALP(CNRS)-GIP GERAILP; Arcueil Cedex France
    Presented at PICALO 2008

    Practically, the melted bath movements induced during deep penetration laser welding can be controlled by external effects that can lead to make the flow more uniform. A technique consisting in directing an inert gas jet towards the keyhole aperture under a given angle and height of the gas delivering nozzle is used, and a laminar flow is observed. Consequently, the formation of porosities can be thus reduced, and the ob...

    $28.00

  • PICALO 2008 Paper #605 (Characteristic Melt Pool Hydrodynamic Behaviors for CW Nd-YAG Deep Penetration Laser Welding)

    Characteristic Melt Pool Hydrodynamic Behaviors for CW Nd-YAG Deep Penetration Laser Welding
    Authors:
    Remy Fabbro, LALP (CNRS)/GIP GERAILP; Arcueil Cedex France
    Sonia Slimani, ; Cedex France
    Frederic Coste, ; Cedex France
    Francis Briand, ; Cedex France
    Presented at PICALO 2008

    The hydrodynamics evolution of the melt pool during laser Yag welding of stainless steel has been experimentally studied by using a high-speed video camera that allowed us to analyze the main characteristic parts of such melt pools. Depending on operating conditions, very different and complex hydrodynamic behaviors can be observed when the welding speed varies from typically a ...

    $28.00

  • PICALO 2008 Paper #604 (Studies on the Laser Spot Welding of Magnet/Steel Dissimilar Materials)

    Studies on the Laser Spot Welding of Magnet/Steel Dissimilar Materials
    Authors:
    Baohua Chang, Tsinghua University; Beijing Peoples Republic of China
    Shaojun Bai, Tsinghua University; Beijing Peoples Republic of China
    Xiaogong Li, University of Waterloo; Ontario Canada
    Yuquan Ding, University of Waterloo; Ontario Canada
    Hua Zhang, Tsinghua University; Beijing Peoples Republic of China
    Dong Du, Tsinghua University; Beijing Peoples Republic of China
    Yunhong Zhou, University of Waterloo; Ontario Canada
    Presented at PICALO 2008

    Laser spot welding of high performance sintered NdFeB magnets of grade N48 and SPCC cold rolled ...

    $28.00

  • PICALO 2008 Paper #603 (A Comparative Study of Single Mode Fibre Laser and Nd:YAG Laser Welding of Ti-6Al-4V)

    A Comparative Study of Single Mode Fibre Laser and Nd:YAG Laser Welding of Ti-6Al-4V
    Authors:
    Hui-Chi Chen, The University of Manchester; Manchester Great Britain
    Andrew Pinkerton, The University of Manchester; Manchester Great Britain
    Jonathan Blackburn, Twi Ltd; Cambridge Great Britain
    Lin Li, The University of Manchester; Manchester Great Britain
    Paul Hilton, Twi Ltd; Cambridge Great Britain
    Presented at PICALO 2008

    In the past ten years, fibre laser systems have been developed intensively and can now be obtained commercially for industrial use. The fibre laser has been recognised as one of the laser types with most potential for the future...

    $28.00

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