• ICALEO 2007 Paper #304 (Customized Short and Ultrashort Laser Pulses for the Photovoltaics Industry)

    Customized Short and Ultrashort Laser Pulses for the Photovoltaics Industry
    Authors:
    Juergen Stollhof, TRUMPF Laser Technology Center; Plymouth Township MI USA
    S. Weiler, Trumpf Laser GmbH; Schramberg Germany
    C. Tan, Trumpf Laser GmbH; Schramberg Germany
    I. Zawischa, Trumpf Laser GmbH; Schramberg Germany
    D.H. Sutter, Trumpf Laser GmbH; Schramberg Germany
    J. Kleinbauer, Trumpf Laser GmbH; Schramberg Germany
    M. Kumkar, Trumpf Laser GmbH; Schramberg Germany
    Presented at ICALEO 2007

    Market studies anticipate a dramatic increase in the worldwide production capacity of solar cells and modules in the next years. To achieve t...

    $28.00

  • ICALEO 2007 Paper #305 (Laser Surface Texturing for Reducing Reflection Losses in Multicrystalline Silicon Solar Cells)

    Laser Surface Texturing for Reducing Reflection Losses in Multicrystalline Silicon Solar Cells
    Authors:
    Barbara Terheiden, Isfh; Hameln Germany
    Rainer Grischke, Institute for Solar Energy Research Hamelin; Emmerthal Germany
    Susanne Mau, ISFH; Hamelin Germany
    Aart Schoonderbeek, Laser Zentrum Hannover; Hannover Germany
    Nils Peter Harder, ISFH; Hamelin Germany
    Andreas Ostendorf, LZH; Hannover Germany
    Rainer Kling, LZH; Hannover Germany
    B. Denkena, LZH; Hannover Germany
    Rolf Brendel, ISFH; Hamelin Germany
    Presented at ICALEO 2007

    On monocrystalline silicon solar cells the light trapping effect c...

    $28.00

  • ICALEO 2007 Paper #306 (Laser Technology for Solar Cells and Solar Receivers)

    Laser Technology for Solar Cells and Solar Receivers
    Authors:
    Aart Schoonderbeek, Laser Zentrum Hannover e.V.; Hannover Germany
    Lars Richter, Laser Zentrum Hannover e.V.; Hannover Germany
    Rainer Kling, Laser Zentrum Hannover e.V.; Hannover Germany
    Andreas Ostendorf, Laser Zentrum Hannover e.V.; Hannover Germany
    Berend Denkena, Laser Zentrum Hannover e.V.; Hannover Germany
    Rainer Grischke, ISFH; Emmerthal Germany
    S. Mau, ISFH; Emmerthal Germany
    N.P. Harder, ISFH; Emmerthal Germany
    R. Brendel, ISFH; Emmerthal Germany
    Presented at ICALEO 2007

    During the last years, solar energy conversion by pho...

    $28.00

  • ICALEO 2007 Paper #308 (Micro Welding for Environmental-friendly Products)

    Micro Welding for Environmental-friendly Products
    Authors:
    Florian Wagner, BIAS; Bremen Germany
    Frank Vollertsen, BIAS - Bremer Institut für angewandte Strahltechnik GmbH; Bremen Germany
    Claus Thomy, BIAS; Bremen Germany
    Presented at ICALEO 2007

    Laser welding can be scaled down even to very small dimensions, where other welding techniques are not applicabel. A high processing speed, high precision, good process control and low penetration depth with deep penetration welding even at thicknesses of some 100 micron are the benefits of micro laser welding. Process developments, using pulsed and cw laser, are shown. Welding of similar and dissimilar materials like alumini...

    $28.00

  • ICALEO 2007 Paper #309 (High-Speed Laser Welding of Fuel Cell Metals)

    High-Speed Laser Welding of Fuel Cell Metals
    Authors:
    Stanley Ream, EWI; Columbus OH USA
    Presented at ICALEO 2007

    As concerns about energy independence increase, government and industry are focusing more attention on improving energy utilization. Among the many opportunities for higher energy efficiency fuel cells have attracted considerable scientific, engineering, and popular attention. While most of the envisioned fuel cell devices and systems are still in the design stages, the potential manufacturers of these products are recognizing the need to develop manufacturing solutions to their unique fabrication challenges. Despite the tremendous diversity in fuel cell system designs one fabric...

    $28.00

  • ICALEO 2007 Paper #401 (Measuring Laser Absorption Coefficient during Laser Additive Manufacturing of 316L Stainless Steel and Ti-6V-4Al Alloys)

    Measuring Laser Absorption Coefficient during Laser Additive Manufacturing of 316L Stainless Steel and Ti-6V-4Al Alloys
    Authors:
    James Sears, South Dakota School of Mines & Technology; Rapid City SD USA
    Presented at ICALEO 2007

    There have been considerable modeling efforts aimed at studying the thermal response and residual stresses produced during Laser Powder Deposition. However, there has been little published on quantifying the laser energy transfer during Laser Powder Deposition. The energy transfer measurement is critical for producing accurate estimate of the thermal response and residual stresses produced. An accurate energy input is required when modeling. This input is dependent on...

    $28.00

  • ICALEO 2007 Paper #402 (Investigation of Laser Consolidation for Manufacturing Functional Net-Shape Components for Potential Rocket Engine Applications)

    Investigation of Laser Consolidation for Manufacturing Functional Net-Shape Components for Potential Rocket Engine Applications
    Authors:
    Lijue Xue, National Research Council Canada, Integrated Manufacturing Technologies Institute; London ON Canada
    Thomas Van Daam, Pratt & Whitney Rocketdyne, Inc. ; Canoga Park CA USA
    Yangsheng Li, National Research Council Canada, Integrated Manufacturing Technologies Institute; London ON Canada
    Clifford Bampton, Pratt & Whitney Rocketdyne, Inc.; Canoga Park CA USA
    Presented at ICALEO 2007

    Laser consolidation is an emerging novel computer-aided manufacturing process that produces net-shape functional metallic parts layer b...

    $28.00

  • ICALEO 2007 Paper #403 (Direct Laser Deposition - A Comparative Study Using Different CW YAG Lasers and with In Situ Real-Time Spectroscopy and Imaging)

    Direct Laser Deposition– A Comparative Study Using Different CW YAG Lasers and with In Situ Real-Time Spectroscopy and Imaging
    Authors:
    Konrad Bartkowiak, Poznan University of Technology; Dresden Poland
    Mikhail Vasilyev, Saint-Petersburg State Polytechnic University; Polytechnicheskaya SPb Russia
    Presented at ICALEO 2007

    Direct Laser Deposition (DLD) is an emerging technology which shows great potential for direct manufacture. The DLD method has become viable for the build up of three-dimensional parts, their repair or modification, as a means of rapid prototyping and tooling of metallic components. However, compositional monitoring of the DLD process is still requires investigat...

    $28.00

  • ICALEO 2007 Paper #405 (Laser Processing and Synthesis of Ceramic Biomaterials for Osseointegrable Applications)

    Laser Processing and Synthesis of Ceramic Biomaterials for Osseointegrable Applications
    Authors:
    Juan Pou, Universidade de Vigo; Vigo Spain
    Antonio Riveiro, Universidade de Vigo; Vigo Spain
    Félix Quintero, Universidade de Vigo; Vigo Spain
    Fernando Lusquiños, Universidade de Vigo; Vigo Spain
    Rafael Comesaña, Universidade de Vigo; Vigo Spain
    B. León, Universidade de Vigo; Vigo Spain
    Mohamed Boutinguiza, Univerisdade de Vigo; Vigo Spain
    M. Pérez-Amor, Universidade de Vigo; Vigo Spain
    Presented at ICALEO 2007

    Since 1970 ceramic materials have been used in different applications involving the repair of bo...

    $28.00

  • ICALEO 2007 Paper #406 (Cast Carbide-metal Composite Components via Laser Based Solid Freeform Fabrication)

    Cast Carbide-metal Composite Components via Laser Based Solid Freeform Fabrication
    Authors:
    William Hofmeister, University of Tennessee Space Institute; Tullahoma TN USA
    Deepak Rajput, University of Tennessee Space Institute; Tullahoma TN USA
    Lino Costa, University of Tennessee Space Institute; Tullahoma TN USA
    Kate Lansford, University of Tennessee Space Institute; Tullahoma TN USA
    Presented at ICALEO 2007

    Titanium-tungsten-carbon base alloys are a promising candidate material for high performance propulsion systems, given their ability to form cast carbide-metal composites having a fine microstructure consisting of a dispersion of hard titanium carbide p...

    $28.00

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