• ICALEO 2012 Paper #1909 (Study on Temperature Dependence of Recoil Pressure Near the Boiling Temperature - Towards Better Modeling and Simulation)

    Study on Temperature Dependence of Recoil Pressure Near the Boiling Temperature - Towards Better Modeling and Simulation
    Authors:
    Koji Hirano, Instrument & Control R&D Div., Process Technology Center, Technical Development Bureau, Nippon Steel Corporation; Futtsu-City, Chiba Japan
    Remy Fabbro, PIMM Laboratory, CNRS-Arts et Métiers ParisTech; Paris France
    Maryse Muller, PIMM Laboratory, CNRS-Arts et Métiers ParisTech; Paris France
    Presented at ICALEO 2012

    Nowadays it is widely accepted that recoil pressure is an important driving force of molten material in various laser material processing. However, we do not fully understand the physical processes that occur around ...

    $28.00

  • ICALEO 2012 Paper #201 (Pulse Shaping During Laser Percussion Drilling by Using Fiber Laser Radiation)

    Pulse Shaping During Laser Percussion Drilling by Using Fiber Laser Radiation
    Authors:
    Hermann Uchtmann, Lehrstuhl fuer Lasertechnik RWTH Aachen Univ.; Aachen Germany
    Jens Dietrich, Lehrstuhl fuer Lasertechnik RWTH Aachen Univ.; Aachen
    Ingomar Kelbassa, Lehrstuhl fuer Lasertechnik RWTH Aachen Univ.; Aachen Germany
    Presented at ICALEO 2012

    Laser percussion drilling is commonly used for drilling holes such as cooling holes in the aerospace industry. Flash lamp pumped Nd:YAG laser sources are state of the art for drilling. For a short time pulsed diode pumped laser sources such as fiber lasers with high average power are available, coming along with benefits due to the ...

    $28.00

  • ICALEO 2012 Paper #202 (Development of an Azimuthally Polarized All-in-One Pulsed CO2 Laser for Microdrilling)

    Development of an Azimuthally Polarized All-in-One Pulsed CO2 Laser for Microdrilling
    Authors:
    Masamori Endo, Department of Physics, Tokai Univ.; Hiratsuka Japan
    Motoi Sasaki, Research & Development Dept., SBY Group Production & Information Division, Shibuya Kogyo Co., Ltd.; Kanazawa Japan
    Ryoji Koseki, Research & Development Dept., SBY Group Production & Information Division, Shibuya Kogyo Co., Ltd.; Kanazawa Japan
    Presented at ICALEO 2012

    Applications of cylindrically polarized laser beams are of interest since they are believed to have superior machining characteristics. For drilling, it has been proven that azimuthally polarized beam can drill at faster rate and th...

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  • ICALEO 2012 Paper #203 (Comparison of Keyhole Characteristics Obtained by Two Experimental Methods: The "Direct Observation of Drilled Hole" Method and the "Sandwich" Method)

    Comparison of Keyhole Characteristics Obtained by Two Experimental Methods: The “Direct Observation of Drilled Hole” Method and the “Sandwich” Method
    Authors:
    Simone Matteï, Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS / Univ. de Bourgogne; Le Creusot France
    Jean-Marie Jouvard, Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS / Univ. de Bourgogne; Le Creusot France
    Massaud Mostafa, Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS / Univ. de Bourgogne; Le Creusot France
    Iryna Tomashchuk, Laboratoire Interdisciplinaire Carnot de Bourgogne, UMR 6303 CNRS / Univ. de Bourgogne; 71200 Lez Creusot France
    ...

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  • ICALEO 2012 Paper #204 (Simulation of the Laser Drilling Process with the Constraint Natural Element Method)

    Simulation of the Laser Drilling Process with the Constraint Natural Element Method
    Authors:
    Jeremie Girardot, PIMM Laboratory (CNRS), Arts et Metiers ParisTech; Paris France
    L. Illoul, PIMM Laboratory (CNRS), Arts et Metiers ParisTech; Paris France
    Philippe Lorong, PIMM Laboratory (CNRS), Arts et Metiers ParisTech; Paris France
    Nicolas Ranc, PIMM Laboratory (CNRS), Arts et Metiers ParisTech; Paris France
    Matthieu Schneider, PIMM Laboratory (CNRS), Arts et Metiers ParisTech; Paris France
    Laurent Berthe, PIMM Laboratory (CNRS), Arts et Metiers ParisTech; Paris France
    Veronique Favier, PIMM Laboratory (CNRS), Arts et Metiers ParisTech; P...

    $28.00

  • ICALEO 2012 Paper #301 (Laser-Assisted Development of New Ti-Mo-Zr Alloys for Biomedical Applications)

    Laser-Assisted Development of New Ti-Mo-Zr Alloys for Biomedical Applications
    Authors:
    Carole Loable, Instituto Superior Tecnico, Dep. Chemical Engineering and ICEMS-Institute of Materials and Surface Science and Engineering, Technical Univ. of Lisbon; Lisbon Portugal
    Amelia Almeida, Instituto Superior Tecnico, Dep. Chemical Engineering and ICEMS-Institute of Materials and Surface Science and Engineering, Technical Univ. of Lisbon; Lisbon Portugal
    Rui Vilar, Instituto Superior Tecnico, Dep. Chemical Engineering and ICEMS-Institute of Materials and Surface Science and Engineering, Technical Univ. of Lisbon; Lisbon Portugal
    Presented at ICALEO 2012

    Laser manufacturing me...

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  • ICALEO 2012 Paper #302 (Residual Stress Control in DMD Process)

    Residual Stress Control in DMD Process
    Authors:
    Hyung Min Chae, NSF Center for Lasers and Plasmas in Advanced Manufacturing, Department of Mechanical Engineering, The Univ. of Michigan; Ann Arbor MI USA
    Jyoti Mazumder, NSF Center for Lasers and Plasmas in Advanced Manufacturing, Department of Mechanical Engineering, Department of Materials Science and Engineering, The Univ. of Michigan; Ann Arbor MI
    Presented at ICALEO 2012

    The material fabricated by the Laser aided Direct Metal Deposition (DMD) process experiences extreme cyclic thermal loads during the process, which builds relatively high residual stress. The residual stress is directly related to fracture and fatigue behavior...

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  • ICALEO 2012 Paper #304 (A Verified Model of Transient and Residual Stresses in Laser Direct Metal Deposition)

    A Verified Model of Transient and Residual Stresses in Laser Direct Metal Deposition
    Authors:
    Michael Vogel, Manufacturing and Management Group, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; M Great Britain
    Mushtaq Khan, Manufacturing and Management Group, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester
    Andrew J. Pinkerton, Manufacturing and Management Group, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester Great Britain
    Juansethi Ibarra-Medina, Manufacturing and Management Group, School of Mechanical, Aerospace and Civil Engineering, The U...

    $28.00

  • ICALEO 2012 Paper #305 (3D Analysis of the Powder Flow of Laser Cladding Nozzles)

    3D Analysis of the Powder Flow of Laser Cladding Nozzles
    Authors:
    Rezak Mezari, STAMP-Arts et Métiers ParisTech; Paris France
    Pascal Aubry, STAMP-Arts et Métiers ParisTech; Paris France
    Thierry Malot, STAMP-Arts et Métiers ParisTech; Paris France
    Kevin Verdier, STAMP-Arts et Métiers ParisTech; Paris France
    Presented at ICALEO 2012

    In order to generate 3D complex structures by laser metal deposition, especially for Direct Manufacturing of parts where the number of deposited layers can be high, it is necessary to control the width and the height of the deposited material. If a process control is needed to ensure the stability of the process, it is very i...

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  • ICALEO 2012 Paper #401 (Remote Processing of Tailored Fiber Reinforced Lightweight Structures)

    Remote Processing of Tailored Fiber Reinforced Lightweight Structures
    Authors:
    Annett Klotzbach, Fraunhofer IWS Dresden; Dresden Germany
    Andreas Fürst, Fraunhofer IWS Dresden, Technische Univ. Dresden; Dresden
    Jan Hauptmann, Fraunhofer IWS Dresden; -
    Eckhard Beyer, Fraunhofer IWS Dresden, Technische Univ. Dresden; Dresden
    Presented at ICALEO 2012

    Fiber-reinforced polymers are applied more and more in the aircraft industry, as well as the automobile industry. The possibility for spheric variation of structure properties by the adaptation of fiber layers and fiber orientation within the material enables a wide range of applications. Newly developed TF...

    $28.00

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