• ICALEO 2007 Paper #105 (Adaptive Metal Deposition and Data Management for Automated Overhaul of Complex Turbine Components)

    Adaptive Metal Deposition and Data Management for Automated Overhaul of Complex Turbine Components
    Authors:
    Claus Bremer, BCT GmbH; USA
    Presented at ICALEO 2007

    The automated overhaul of turbine components consist of a chain of different processes as inspection, material addition and re-shaping. The direct metal deposition methods have been improved by employing adaptive machining technology. The adaptation algorithms make use of the geometrical information provided by optical scanning systems or in-process measuring equipment and compensate for the part-to-part variation of the turbine components to be overhauled. With this approach, the metal deposition of the individually worn and deformed...

    $28.00

  • ICALEO 2007 Paper #106 (Heat Flow and Structural Development during Direct Metal Deposition of Waspaloy Wire using a High Power Diode Laser)

    Heat Flow and Structural Development during Direct Metal Deposition of Waspaloy Wire using a High Power Diode Laser
    Authors:
    D Graham McCartney, School of Mechanical, Materials and Manufacturing Engineering; Nottingham Great Britain
    Ian R Pashby, School of Mechanical, Materials and Manufacturing Engineering, The University of Nottingham; Nottingham Great Britain
    Joel Segal, School of Mechanical, Materials and Manufacturing Engineering; Nottingham Great Britain
    Nur Hussein, School of Mechanical, Materials and Manufacturing Engineering, The University of Manchester; Nottingham Great Britain
    Presented at ICALEO 2007

    Direct metal deposition using a wire fed hi...

    $28.00

  • ICALEO 2007 Paper #108 (Acoustic Phenomena during Laser Drilling)

    Acoustic Phenomena during Laser Drilling
    Authors:
    Paul Jacobs, LFI Inc.; Smithfield RI USA
    Matthew Hayman, LFI Inc.; Smithfield RI USA
    Terri Marsico, Connecticut Center for Advanced Technology; East Hartford CT USA
    Abby Ilumoka, University of Hartford; West Hartford CT USA
    Paul Denney, Conneticut Center for Advance Technology; East Hartford CT USA
    Robin Bright, Univeristy of Connecticut; Storrs CT USA
    Presented at ICALEO 2007

    Precision laser drilled holes are critical to enable film cooling of numerous jet engine components. A single modern jet engine can require nearly one million film cooling holes! At present, laser drilling ...

    $28.00

  • ICALEO 2007 Paper #109 (Comparison of Microstructures and Properties of Laser Surface-Treated Thermally Sprayed and Laser-Clad Coatings of Inconel 625)

    Comparison of Microstructures and Properties of Laser Surface-Treated Thermally Sprayed and Laser-Clad Coatings of Inconel 625
    Authors:
    Guijun Bi, University of Nottingham; Nottingham Great Britain
    K.T. Voisey, University of Nottingham; Nottingham Great Britain
    Nauman Ahmed, University of Nottingham; Nottingham Great Britain
    D.G. McCartney, University of Nottingham; Nottingham Great Britain
    I.R. Pashby, University of Nottingham; Nottingham Great Britain
    Presented at ICALEO 2007

    Inconel 625 is a corrosion-resistant Ni-based alloy which has multiple applications in various industrial sectors including aerospace and petrochemical. Whilst thermal ...

    $28.00

  • ICALEO 2007 Paper #1102 (Computation of Temperature Fields for Laser Transmission Welding of Plastics)

    Computation of Temperature Fields for Laser Transmission Welding of Plastics
    Authors:
    Thomas Frick, Bavarian Laser Centre; Erlangen Germany
    Presented at ICALEO 2007

    Laser transmission welding of plastics is a joining technique which permits the welding of plastic parts with low thermal and mechanical stresses. In order to compute the temperature fields during the welding process a simulation model of the process is established. Especially the optical and thermal properties of the welded materials are necessary as input parameters in order to model the process properly. While the thermal properties of polymers are well-investigated, there is little knowledge about the optical properties of plast...

    $28.00

  • ICALEO 2007 Paper #1105 (New Applications of Laser Welding in the Field of Thermoplastic Polymer Composites)

    New Applications of Laser Welding in the Field of Thermoplastic Polymer Composites
    Authors:
    Stephane Abed, Clfa Fraunhofer Ilt; Evry France
    Wolfgang Knapp, Clfa Fraunhofer Ilt; Paris France
    Presented at ICALEO 2007

    Laser beam welding of thermoplastic polymers offers innovative solutions to overcome limitations of conventional joining technologies. These benefits are used in more and more industrial applications due to the accuracy and flexibility of the process and the quality of the weld seams. To meet industrial requirements specific welding procedures (contour, quasi-simultaneous or simultaneous) or adapted materials (color) have already been developed. In parallel new sectors o...

    $28.00

  • ICALEO 2007 Paper #1106 (Laser Heat Sealing of the Polymer Coated Steel Sheet)

    Laser Heat Sealing of the Polymer Coated Steel Sheet
    Authors:
    Tatsuhiko Sakai, Nippon Steel; Futtsu, Chiba Japan
    Hirofumi Imai, Nippon Steel; Futtsu, Chiba Japan
    Hirokazu Yokoya, Nippon Steel; Futtsu, Chiba Japan
    Hiroshi Nishida, Nippon Steel; Futtsu, Chiba Japan
    Naoya Hamada, Nippon Steel; Futtsu, Chiba Japan
    Presented at ICALEO 2007

    The polymer coated thin steel sheet is used for materials for electronics and building applications. At least two steel sheets are joined by tight rolling at their edge for the materials processing. The edge of the steel sheet is needed to be wrapped inside the joint roll and be sufficiently sealed off against th...

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  • ICALEO 2007 Paper #1201 (The Influence of Pulse Parameters on the Laser Drilling of Hastelloy X)

    The Influence of Pulse Parameters on the Laser Drilling of Hastelloy X
    Authors:
    Paul Jacobs, LFI, Inc.; Smithfield RI USA
    Robin Bright, University of Connecticut Institute of Materials Science; Storrs CT USA
    Harris Marcus, University of Connecticut Institute of Materials Science; Storrs CT USA
    Mark Aindow, University of Connecticut Institute of Materials Science; Storrs CT USA
    Presented at ICALEO 2007

    Pulsed laser drilling has recently become of increasing importance to the aerospace industry as a method of creating cooling holes in a variety of high temperature gas turbine engine components. The potential for improved processing speed, accuracy, and repr...

    $28.00

  • ICALEO 2007 Paper #1202 (Laser Design Characteristics and Parameter Variables and Their Impact on Percussion Hole Quality)

    Laser Design Characteristics and Parameter Variables and Their Impact on Percussion Hole Quality
    Authors:
    Robert Wright, University of Hartford; West Hartford CT USA
    Terri Marsico, Conneticut Center for Advance Technology; East Hartford CT USA
    Paul Denney, Conneticut Center for Advance Technology; East Hartford CT USA
    Presented at ICALEO 2007

    Laser drilling is the primary method for the production of cooling holes in gas turbine engine components. Hole quality, which includes surface debris (its amount and location), hole taper, size, and barreling, is a major factor in determining the success of the cooling holes and therefore the performance of the engine. As the n...

    $28.00

  • ICALEO 2007 Paper #1203 (Methods of Employing Lasers in the Production and Repair of Cooling Holes used in the Latest Turbine Engine Designs)

    Methods of Employing Lasers in the Production and Repair of Cooling Holes used in the Latest Turbine Engine Designs
    Authors:
    John Stackhouse, Winbro Group Technologies; Coalville Great Britain
    Martin Bull, Winbro Group Technologies; Great Britain
    Presented at ICALEO 2007

    The latest Turbine Cooling Hole designs employ strategies that maximize engine efficiency in ways that were unheard of just a few years ago. These include randomly spaced and angled cooling holes, that often include fan-shaped exits to provide efficient, diffused cooling, and Thermal Barrier Coating (TBC) of the components surfaces. The challenges that are presented in manufacturing these cooling holes a...

    $28.00

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