• ICALEO 2009 Paper #P148 (The Effect of the Relative Location Of Laser Beam And Arc In Different Hybrid Welding Processes)

    The Effect of the Relative Location Of Laser Beam And Arc In Different Hybrid Welding Processes
    Authors:
    Paul Kah, Lappeenranta University of Technology; Lappeerenta Finland
    Antti Salminen, Lappeenranta University of Technology, Finland; Lappeenranta Finland
    Jukka Martikainen, Lappeenranta University of Technology, Finland; Lappeenranta Finland
    Presented at ICALEO 2009

    Hybrid welding requires that several parameters be adjusted in order to reach high quality of welds. One of the main setup of hybrid welding is the order of the different power sources. The selection partly depends on what kind of results are desired in the weld joints, whether it is gap bridging, penetr...

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  • ICALEO 2009 Paper #P157 (Effect of Joint Gap on Nd: YAG Laser Welded Ti-6Al-4V)

    Effect of Joint Gap on Nd: YAG Laser Welded Ti-6Al-4V
    Authors:
    Xinjin Cao, Institute for Aerospace Research; Montreal QC Canada
    G. Debaecker, Ecole Centrale de Nantes; Nantes Canada
    E. Poirier, Aerospace Manufacturing Technology Center; Montreal QC Canada
    S. Marya, Ecole Centrale de Nantes; - Canada
    J. Cuddy, Standard Aero Limited; - Canada
    A. Birur, Standard Aero Limited; - Canada
    P. Wanjara, Aerospace Manufacturing Technology Center; Montreal QC Canada
    Presented at ICALEO 2009

    Conventionally, TIG, plasma arc, electron beam and CO2 laser welding have been used to join titanium alloys. To date, little has been reporte...

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  • ICALEO 2009 Paper #P158 (Frequency Doubling (SHG) of a 200 W cw Fiber Laser in Kaliumtitanylphosphat (KTP))

    Frequency Doubling (SHG) of a 200 W cw Fiber Laser in Kaliumtitanylphosphat (KTP)
    Authors:
    Markus Mundus, Laser Center, Muenster University of Applied Sciences; Steinfurt Germany
    Jürgen Gröninger, Laser Center, Muenster University of Applied Sciences; Steinfurt Germany
    Klaus Dickmann, Laser Center, Muenster University of Applied Sciences; Steinfurt Germany
    Presented at ICALEO 2009

    Since most metals are high reflective in case of fiber laser wavelengths these materials often can't be processed ideally. Therefore the wavelength of the beam is modified by frequency conversions in order to optimize the interaction of laser and
    material. In most state-of-the-art publica...

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  • ICALEO 2009 Paper #P160 (Drilling of Aluminum with a High Power Q-switched 532nm Laser)

    Drilling of Aluminum with a High Power Q-switched 532nm Laser
    Authors:
    Leonard Migliore, Coherent, Inc.; Santa Clara CA USA
    George Nazary, Coherent, Inc; Santa Clara CA USA
    Presented at ICALEO 2009

    Recent advances in the design of gain modules for diode-pumped solid-state lasers have allowed the manufacture of extremely compact high power products. Their high Q-switched pulse energy combined with good mode quality enable highly efficient harmonic conversion, resulting in a product producing several hundred watts of average power at a wavelength of 532nm. Among the applications for which this product is suited is the rapid drilling of high-quality holes in aluminum sheet. This pape...

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  • ICALEO 2009 Paper #P163 (Femtosecond Laser Materials Processing in the Townes Laser Institute)

    Femtosecond Laser Materials Processing in the Townes Laser Institute
    Authors:
    Mark Ramme, Townes Laser Institute, CREOL, UCF; Orlando FL USA
    Jiyeon Choi, Townes Laser Institute, CREOL, UCF; Orlando FL USA
    Troy Anderson, Townes Laser Institute, CREOL, UCF; Orlando FL USA
    Martin Richardson, Townes Laser Institute, CREOL, UCF; Orlando FL USA
    Presented at ICALEO 2009

    Femtosecond Laser Materials Processing (FLMP) is an active area of research for its superior processing quality compared to the conventional laser processing with nano- and picosecond pulses. Advancements in femtosecond laser technology including the development of high repetition rate fiber-based...

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  • ICALEO 2009 Paper #P165 (The Tribological Applications of WC-Co Electro-Spark Coatings Modified Via Laser Treatment)

    The Tribological Applications of WC-Co Electro-Spark Coatings Modified Via Laser Treatment
    Authors:
    Norbert Radek, Technical University of Kielce; Kielce Poland
    Konrad Bartkowiak, Fraunhofer IWS; Dresden Germany
    Matthias Luetke, Presenter not author - Technische Universitat Dresden; Dresden Germany
    Presented at ICALEO 2009

    Electro spark alloying (ESA) technique is a well established method. However, new lasers are becoming available on the market that can make this technique more attractive for various industry applications, e.g.: surface texturing technology has significant advantages for the wear decreasing into sliding friction. The work reported here concentrates o...

    $28.00

  • ICALEO 2009 Paper #P4 (Laser-assisted Deposition of Good Carbon - From Diamond Films to Nanotubes (Plenary, 30 minutes))

    Laser-assisted Deposition of Good Carbon — From Diamond Films to Nanotubes (Plenary, 30 minutes)
    Authors:
    Y.S. Zhou, -; -
    H. Ling, -; -
    Z.Q. Xie, -; -
    W. Xiong, -; -
    M. Mahjouri-Samani, -; -
    Y. Gao, -; -
    M. Mitchell, -; -
    Yongfeng Lu, University of Nebraska - Lincoln; Lincoln NE USA
    Presented at ICALEO 2009

    Carbon materials of versatile structures, from diamond, graphite, carbon nanotube to graphene, exhibit distinct properties and find applications in different fields. Laser-assisted deposition methods were developed for growing materials with unparallel advantages, such as selective interaction...

    $28.00

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