• ICALEO 2010 Paper #1701 (A Thermo-Kinetic Phase Transformation Model for Multi-Pass Laser Heat Treatment by using High Power Direct Diode Laser)

    A Thermo-Kinetic Phase Transformation Model for Multi-Pass Laser Heat Treatment by using High Power Direct Diode Laser
    Authors:
    Soundarapandian Santhanakrishnan, Research Center for Advanced Manufacturing, Southern Methodist University; Dallas TX USA
    Fanrong Kong, Research Center for Advanced Manufacturing, Southern Methodist University; Dallas TX USA
    Radovan Kovacevic, Research Center for Advanced Manufacturing, Southern Methodist University; Dallas TX USA
    Presented at ICALEO 2010

    Nowadays, high-power direct diode laser (HPDDL) is successfully used in industry as a versatile tool for locally heat treating the metallic components. Laser phase transformation hardening (...

    $28.00

  • ICALEO 2010 Paper #1605 (New Perspectives for the Absorber Free Laser Welding of Thermoplastics)

    New Perspectives for the Absorber Free Laser Welding of Thermoplastics
    Authors:
    Andrei Boglea, Fraunhofer Institute for Laser Technology; Aachen Germany
    Andreas Röesner, Fraunhofer Institute for Laser Technology; Aachen Germany
    Alexander Olowinsky, Fraunhofer Institute for Laser Technology; Aachen Germany
    Presented at ICALEO 2010

    Polymeric products play an important role in almost every facet of our lives and constitute a wide variety of products starting from everyday products up to high tech products in the automotive, electronics, aerospace, medical and other sectors. The possibility to fabricate complex shapes in various sizes provides design flexibility and high ...

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  • ICALEO 2010 Paper #1604 (Analysis of Laser Welding of Long Fiber Reinforced Composites)

    Analysis of Laser Welding of Long Fiber Reinforced Composites
    Authors:
    C. Binetruy, Inst. Carnot Mines; Douai France
    A. Bueter, Fraunhofer-LBF; Darmstadt Germany
    P. Castaing, CETIM; Nantes Ced ex France
    S. Clement, CLFA, c/o Mines Paris Tech; Paris Cedex 6 France
    M. Deleglise, Inst. Carnot Mines; Douai France
    C. Franz, Fraunhofer Ilt; Aachen Germany
    A. Giessi, Fraunhofer-LBF; Darmstadt Germany
    Wolfgang Knapp, CLFA Fraunhofer ILT; Paris Cedex France
    M. Oumarou, Institute Carnot MINES, Mines ParisTech; Evry Cedex France
    J. Renard, Inst. Carnot Mines; Evry France
    A. Roeser, Frauhofer Ilt...

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  • ICALEO 2010 Paper #1603 (Laser Welding of Dissimilar Copper-Aluminum Connections by Means of Roll-Cladded Inserts)

    Laser Welding of Dissimilar Copper-Aluminum Connections by Means of Roll-Cladded Inserts
    Authors:
    Markus Weigl, Bayerisches Laserzentrum GmbH; Erlangen Germany
    Alexander Grimm, Bayerisches Laserzentrum GmbH; Erlangen Germany
    Thomas Frick, Bayerisches Laserzentrum GmbH; Erlangen Germany
    Michael Schmidt, Chair of Photonic Technologies, University of Erlangen-Nuernberg; Erlangen Germany
    Presented at ICALEO 2010

    Thermal welding processes of copper and aluminum often lead to insufficient connections due to an embrittlement and an unsatisfactory ductility of the melting zone. This embrittlement is caused by an extensive intermixture of the dissimilar base materi...

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  • ICALEO 2010 Paper #1602 (Learning More About Laser Beam Welding by Applying It to Copper and Copper Alloys)

    Learning More About Laser Beam Welding by Applying It to Copper and Copper Alloys
    Authors:
    Dirk Petring, Fraunhofer-Institute for Laser Technology ILT; Aachen Germany
    Vahid Nazery Gonghany, Fraunhofer-Institute for Laser Technology ILT; Aachen Germany
    Presented at ICALEO 2010

    Welding of copper is generally considered to be difficult, particularly due to its high heat conductivity. During welding with high-power lasers the low absorptance of the near and even more the far IR wavelengths means an additional hurdle. Resulting back reflections can be hazardous for optics, beam guidance and laser source. On the other hand copper and its alloys gain in importance e.g. in view of the comi...

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  • ICALEO 2010 Paper #1601 (Benefits from Combining Laser Beams with Different Wavelengths (Green and Ir) for Copper Welding)

    Benefits from Combining Laser Beams with Different Wavelengths (Green and Ir) for Copper Welding
    Authors:
    Axel Hess, Institut Strahlwerkzeuge IFSW, University of Stuttgart; Stuttgart Germany
    Andreas Heider, Institut Strahlwerkzeuge IFSW, University of Stuttgart; Stuttgart Germany
    Rainer Schuster, Institut Strahlwerkzeuge IFSW, University of Stuttgart; Stuttgart Germany
    Rudolf Weber, Institut Strahlwerkzeuge IFSW, University of Stuttgart; Stuttgart Germany
    Thomas Graf, Institut Strahlwerkzeuge IFSW, University of Stuttgart; Stuttgart Germany
    Presented at ICALEO 2010

    Due to its very good electric and thermal conductivity, copper is a fundamental...

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  • ICALEO 2010 Paper #1506 (Chances and Challenges Processing With High Brightness Lasers )

    Chances and Challenges Processing With High Brightness Lasers
    Authors:
    Thomas Seefeld, BIAS Bremer Institut für angewandte; Bremen Germany
    Presented at ICALEO 2010

    Solid state fiber and thin disk lasers offer high power and high beam quality. They provide the opportunity to overcome former limitations by achieving e.g. previously unattained processing speed and processing depth in laser beam welding, and offer yet unmatched process efficiency. This contribution highlights current work on some of the challenges associated with the application of high brightness systems, including thermally induced focus shift, single and multi passes thick section welding, pool stability at high welding sp...

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  • ICALEO 2010 Paper #1505 (MATLAB Laser Toolbox)

    MATLAB Laser Toolbox
    Authors:
    Gert-willem Römer, University of Twente, Faculty Engineeing Technology, Chair of Applied Laser Technology; Enschede Netherlands
    A. J. Huis in 't Veld, Tno Science & Industry, Department Materials Technology; Eindhoven Netherlands
    Presented at ICALEO 2010

    MATLAB is a program for numeric computation, simulation and visualization, developed by the Mathworks. It is used heavily in education, research, and industry, for general and special purpose problem solving that arise in various disciplines such as control theory, statistics, and digital signal processing, etc. For this purpose MATLAB has numerous sets of application-specific scripts, called "toolbox...

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  • ICALEO 2010 Paper #1502 (Laser-Assisted Machining: Its Potential and Future)

    Laser-Assisted Machining: Its Potential and Future
    Authors:
    Yung Shin, Center of Laser-based Manufacturing School of Mechanical Engineering Purdue University; - USA
    Presented at ICALEO 2010

    Laser-assisted machining has been developed over the last fifteen years at Purdue University. This paper presents various case studies on applications of laser-assisted machining and scientific tools developed to design laser-assisted machining processes. LAM has been successfully applied to various materials including ceramics, high temperature alloys, stainless steel, compacted graphite iron as well as metal matrix composites. LAM has shown to provide various benefits including reduced cutting force,...

    $28.00

  • ICALEO 2010 Paper #1501 (Advance in Laser Processing of Metal Matrix Composites (MMCS))

    Advance in Laser Processing of Metal Matrix Composites (MMCS)
    Authors:
    Annamaria Gisario, Dipartimento di Meccanica e Aeronautica, Universitá La Sapienza; Rome Italy
    Francesco Veniali, Dipartimento di Meccanica e Aeronautica, Universitá La Sapienza; Rome Italy
    Presented at ICALEO 2010

    The present work deals with the application of a High Power Diode Laser (HPDL) to improve the mechanical properties of Al2O3 particle-reinforced Aluminum Matrix Composites (AMCs). An experimental plan in which laser power and interaction time were individually varied was carried out to evaluate the influence of both process parameters on the surface performance of the AMCs. In this respect, the evol...

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