• ICALEO 2013 Paper #1104 (Numerical Simulation of Wire Temperature Field for prediction of Wire Transfer Stability in Laser Hot Wire Welding)

    Numerical Simulation of Wire Temperature Field for prediction of Wire Transfer Stability in Laser Hot Wire Welding
    Authors:
    Shiqing Zheng, Tsinghua university; Beijing Peoples Republic of China
    Wen Peng, Tsinghua University; Beijing Peoples Republic of China
    Feng Zahenhua, Tsinghua University; Beijing Peoples Republic of China
    Shan Jiguo, Tsinghua University; Beijing Peoples Republic of China
    Presented at ICALEO 2013

    In laser welding with filling cold wire, the limited spot size and power of laser source is required not only to melt the base metal, but also to melt the cold wire, which largely results in poor processing stability and low deposition effici...

    $28.00

  • ICALEO 2013 Paper #1105 (Detection and Repairing of Weld Defects)

    Detection and Repairing of Weld Defects
    Authors:
    Peter Berger, IFSW, University of Stuttgart; Stuttgart Germany
    Timo Bauknecht, Ifsw, University of Stuttgart; Stuttgart Germany
    Meiko Boley, Ifsw, University of Stuttgart; Stuttgart Germany
    Felix Abt, Ifsw, University of Stuttgart; Stuttgart Germany
    Rudolf Weber, Ifsw, University of Stuttgart; Stuttgart Germany
    Thomas Graf, Ifsw, University of Stuttgart; Stuttgart Germany
    Presented at ICALEO 2013

    There are different strategies to react on a detected weld defect. A very expensive one is to check the generated weld seam after welding and to put the part back into the clamping device f...

    $28.00

  • ICALEO 2013 Paper #1201 (Laser-Based Fabrication With Ti- and Ni-Base Superalloys)

    Laser-Based Fabrication With Ti- and Ni-Base Superalloys
    Authors:
    Christoph Leyens, Fraunhofer IWS; Dresden Germany
    Frank Brueckner, Fraunhofer Iws; Dresden Germany
    Thomas Finaske, Fraunhofer Iws; Dresden Germany
    Steffen Nowotny, Fraunhofer Iws; Dresden Germany
    Eckhard Beyer, Fraunhofer Iws; Dresden Germany
    Sebastian Thieme, Tu Dresden; Dresden Germany
    Presented at ICALEO 2013

    Meanwhile laser-based technology of direct metal deposition is a well industrially established technique for precise coating tasks and additive manufacturing. By means of precise nozzle systems, suitable process equipment as well as well customized manufactu...

    $28.00

  • ICALEO 2013 Paper #1202 (Laser-Based Generation of Precise Functional Structures and Components)

    Laser-Based Generation of Precise Functional Structures and Components
    Authors:
    Frank Brueckner, Fraunhofer IWS; Dresden Germany
    Mirko Riede, Fraunhofer Iws Dresden; Dresden Germany
    Thomas Finaske, Fraunhofer Iws Dresden; Dresden Germany
    Steffen Nowotny, Fraunhofer Iws Dresden; Dresden Germany
    Christoph Leyens, Fraunhofer Iws Dresden / Technische Universitaet Dresden; Dresden Germany
    Eckhard Beyer, Fraunhofer Iws Dresden / Technische Universitaet Dresden; Dresden Germany
    Presented at ICALEO 2013

    Functionalization of surfaces as well as the precise generation of metallic components are increasingly required in specific applications...

    $28.00

  • ICALEO 2013 Paper #1203 (Integrated Rapid 3D Mapping and Laser Additive Repair of Gas Turbine Engine Components)

    Integrated Rapid 3D Mapping and Laser Additive Repair of Gas Turbine Engine Components
    Authors:
    Lijue Xue, National Research Council of Canada; London ON Canada
    Yangsheng Li, National Research Council Canada; London ON Canada
    Jianyin Chen, National Research Council Canada; London ON Canada
    Shaodong Wang, National Research Council Canada; London ON Canada
    Glen Campbell, National Research Council Canada; London ON Canada
    Matt Donovan, United Technologies Aerospace Systems; West Des Moiness IA USA
    Presented at ICALEO 2013

    National Research Council Canada (NRC) have developed precision laser additive repair of worn gas turbine compone...

    $28.00

  • ICALEO 2013 Paper #1204 (Optimization of the Laser Direct Metal Deposition Process in 5-Axis Configuration.)

    Optimization of the Laser Direct Metal Deposition Process in 5-Axis Configuration.
    Authors:
    Didier Boisselier, IREPA Laser; Illkirch France
    Simon Sankare, Irepa Laser; Illkirch France
    Presented at ICALEO 2013

    The implementation of the continuous 5-axis configuration can push the limits of the Laser Direct Metal Deposition (LDMD) processes, particularly in terms of complexity of part to build. The inclination of the part growth axis makes it easier to follow the profile of the part. Although continuous 5-axis machining is well known nowadays, LDMD processes require a specific optimization. It depends on many parameters that need the implementation of smooth trajectories in order to ...

    $28.00

  • ICALEO 2013 Paper #1301 (Indirect Measurement of Keyhole Pressure Oscillations During Laser Deep Penetration Welding)

    Indirect Measurement of Keyhole Pressure Oscillations During Laser Deep Penetration Welding
    Authors:
    Joerg Volpp, Bias Ggmbh; Bremen Germany
    Daniel Freimann, Bias Ggmbh; Bremen Germany
    Presented at ICALEO 2013

    The laser deep penetration welding process is highly dynamic. Besides melt pool oscillations the keyhole geometry as well as the pressure inside the keyhole oscillate at high frequencies. Those keyhole oscillations are assumed to support the unwanted process pore formation. Due to limited technological possibilities a direct method for observing the pressure and radius oscillations inside the keyhole is not state of the art.

    Based on an existing indirect measuring system ...

    $28.00

  • ICALEO 2013 Paper #1304 (Laser Beam Welding in Vacuum of Thick Plate Structural Steel)

    Laser Beam Welding in Vacuum of Thick Plate Structural Steel
    Authors:
    Stefan Jakobs, Welding and Joining Institute, Rwth Aachen University; Aachen Germany
    Simon Olschok, Welding and Joining Institute; Aachen Germany
    Uwe Reisgen, Welding and Joining Institute; Aachen Germany
    Presented at ICALEO 2013

    Laser beam and electron beam welding methods are well established in the manufacturing industry. Each of the methods has specific advantages which are used for a large variety of application cases.

    For some time now, laser beam welding in vacuum has experienced a renaissance. First tests about the topic were made in Japan as early as in the Eighties. The brilliant sol...

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  • ICALEO 2013 Paper #1305 (Laser and Electron Beam Welding of 25 Mm Thick A516 Gr.70 Steel )

    Laser and Electron Beam Welding of 25 Mm Thick A516 Gr.70 Steel
    Authors:
    James Chen, Natural Resources Canada; Hamilton USA
    Andrew Laver, Natural Resources Canada; ON Canada
    Renata Zavadil, Natural Resources Canada; ON Canada
    Jie1 Liang, Natural Resources Canada; ON Canada
    Wenyue Zheng, Natural Resources Canada; ON Canada
    Presented at ICALEO 2013

    The safe and effective storage and disposal of high level waste and spent fuel is a high priority for many countries worldwide. In order to store vitrified high level waste in steel canisters in a facility 500 m underground, welding process has to be developed for the closure of nuclear waste canis...

    $28.00

  • ICALEO 2013 Paper #1307 (Effect of Shielding Gas Composition on Co2-Laser Welding Quality)

    Effect of Shielding Gas Composition on Co2-Laser Welding Quality
    Authors:
    Jukka Siltanen, Rautaruukki Oyj; Hämeenlinna Finland
    Ville-Matti Nurmela, Ruukki Metals Oy; Uusikaupunki Finland
    Ilpo Maaranen, Ruukki Metals Oy; Uusikaupunki Finland
    Sakari Tihinen, Ruukki Metals Oy; Raahe Finland
    Jukka Komi, Ruukki Metals Oy; Raahe Finland
    Jurgen Scholz, Linde AG; Unterschleissheim Germany
    Jyrki Honkanen, Oy AGA Ab; Espoo Finland
    Bo Williams, AGA Gas Ab Weldonova; Lidingo Sweden
    Presented at ICALEO 2013

    Shielding gas is significant cost factor for CO2-laser welding, especially if helium is used. Replacing a part ...

    $28.00

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