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  • ICALEO 2009 Paper #M504 (Laser Processing of Preplaced Hydroxyapatite on Electron Beam Melted Titanium Alloy)

    Laser Processing of Preplaced Hydroxyapatite on Electron Beam Melted Titanium Alloy
    Authors:
    Shiva Gadag, Rcam-Smu; Dallas TX USA
    Ehsan Foroozmehr, Southern Methodist University; Dallas TX USA
    Soundarapandian Santhanakrishnan, Rcam-Smu; Dallas TX USA
    Gilbert Chahine, Rcam-Smu; Dallas TX USA
    Radovan Kovacevic, Rcam-Smu; Dallas TX USA
    Presented at ICALEO 2009

    Laser processing of nanoparticles of Hydroxyapatite (HAP) deposited on electron beam melted (EBM) titanium alloy is investigated. CW high power diode lasers for surface alloying as well as nanosecond Q switched pulsed Green and UV lasers are used to assess their suitability for biomedical d...

    $28.00

  • ICALEO 2009 Paper #M503 (Laser-Assisted Development of Ti Alloys: The Search for New Biomedical Alloys)

    Laser-Assisted Development of Ti Alloys: The Search for New Biomedical Alloys
    Authors:
    Amelia Almeida, Instituto Superior Tecnico; Lisbon Portugal
    Dheeraj Gupta, Instituto Superior Tecnico; Lisboa Portugal
    Rui Vilar, Instituto Superior Tecnico; Lisboa Portugal
    Presented at ICALEO 2009

    Ti-alloys used in prosthetic applications are mostly alloys initially developed for aeronautical applications, so their behavior was not optimized for medical use. A need remains to design new alloys for biomedical applications, where requirements such as biocompatibility, in-body durability, specific manufacturing ability, and cost effectiveness are considered. Materials for this applica...

    $28.00

  • ICALEO 2009 Paper #M502 (Nanosecond Fiber Laser Micro-Texturing of Titanium Surface for Biomedical Applications)

    Nanosecond Fiber Laser Micro-Texturing of Titanium Surface for Biomedical Applications
    Authors:
    Habib Abou Saleh, Department of Mechanical & Mechatronics Engineering; Waterloo ON Canada
    Ehsan Toyserkani, Department of Mechanical & Mechatronics Engineering; Waterloo ON Canada
    Fathy Ismail, Department of Mechanical & Mechatronics Engineering; Waterloo ON Canada
    Presented at ICALEO 2009

    Laser micro-texturing has emerged in the last decade as an effective tool for biomaterials surface engineering which resulted in significant improvement in cell/surface interactions. This paper intends to mainly investigate nanosecond fiber laser micro-texturing on biocompatible materials,...

    $28.00

  • ICALEO 2009 Paper #M407 (Computer Simulation of Quasi-Simultaneous Welding Process of Polycarbonate)

    Computer Simulation of Quasi-Simultaneous Welding Process of Polycarbonate
    Authors:
    Heidi Piili, Lappeenranta University of Technology; Lappeenranta Finland
    Lauri Taimisto, Lappeenranta University of Technology; Lappeenranta Finland
    Tuomas Purtonen, Lappeenranta University of Technology; Lappeenranta Finland
    Petri Laakso, VTT Technical Reseach Center of Finland; Lappeenranta Finland
    Antii Salminen, Lappeenranta University of Technology, Machine Technology Center Turku Ltd; Lappeenranta Finland
    Presented at ICALEO 2009

    Laser welding of polymers has had everyday industrial applications for over a decade. With modern scanner and laser technology,...

    $28.00

  • ICALEO 2009 Paper #M406 (Monitoring a High-speed Cw-laser Welding Process)

    Monitoring a High-speed Cw-laser Welding Process
    Authors:
    C. Thiel, Forschungsgesellschaft Fuer Strahlwerkzeuge (Fgsw); Stuttgart Germany
    R Weber, Institut Fuer Strahlwerkzeuge, University of Stuttgart; Stuttgart Germany
    F. Dausinger, Technologiegesellschaft fuer Strahlwerkzeuge mbH; Stuttgart Germany
    F. Abt, Forschungsgesellschaft fuer Strahlwerkzeuge FGSW; Stuttgart Germany
    Presented at ICALEO 2009

    The latest generation of high-brightness disk and fibre lasers allows deep penetration welding with a weld seam width of a few 10 µm and an aspect ratio of up to 15. Welding speeds exceeding 60 m/min are achieved. These properties are very promising for high-...

    $28.00

  • ICALEO 2009 Paper #M405 (Humping Reduction Methods for High Speed Laser Welding)

    Humping Reduction Methods for High Speed Laser Welding
    Authors:
    Scott Cornell, Mound Laser & Photonics Center, Inc.; Miamisburg OH USA
    Kevin Hartke, Mound Laser & Photonics Center, Inc.; Miamisburg OH USA
    Sarah Bertke, Presenter not Author; -
    Presented at ICALEO 2009

    Conventional laser welding speeds, on the order of millimeters per second, are not economically feasible for future energy applications such as fuel cells. A typical fuel cell stack may have hundreds of feet of weld length which must be executed with high precision and no defects, as a single defective weld could result in failure of the entire stack. Recent technological advances in both laser systems ...

    $28.00

  • ICALEO 2009 Paper #M404 (Laser Welding of Aluminum and Copper for Battery Welding Applications using a 500W Single Mode Fiber Laser)

    Laser Welding of Aluminum and Copper for Battery Welding Applications using a 500W Single Mode Fiber Laser
    Authors:
    Geoff Shannon, Miyachi Unitek Corporation; Monrovia CA USA
    Hongqiang Chen, Miyachi Unitek Corporation; Monrovia CA USA
    Presented at ICALEO 2009

    The high brightness of single mode fiber lasers provides an excellent cutting source however in welding can be detrimental to weld quality, especially for ferrous materials. For conductive materials such as aluminum and copper the use of a single mode fiber presents some clear advantages of welding speed and cost effective welding solution. The ability to a focus to a sub 25 micron spot size enables the single mode fiber las...

    $28.00

  • ICALEO 2009 Paper #M403 (High-Efficiency and High Quality Welding of Aluminum Alloy by Hybrid System Combined Nd:YAG Laser and Diode Laser)

    High-Efficiency and High Quality Welding of Aluminum Alloy by Hybrid System Combined Nd:YAG Laser and Diode Laser
    Authors:
    Tomokazu Sakagawa, Kataoka Corporation; Yokohama-City Kanagawa Japan
    Shin-Ichi Nakashiba, Kataoka Corporation; Yokohama, Kanagawa Japan
    Shin Haraguchi, Okayama University; Okayama Japan
    Yasuhiro Okamoto, Okayama University; Okayama Japan
    Yoshiyuki Uno, Okayama University; Okayama Japan
    Presented at ICALEO 2009

    Recently, the welding of aluminum alloy has been strongly required for lightening the electronic products, automobiles and so on. Then hybrid laser system was newly developed in order to perform the high efficiency ...

    $28.00

  • ICALEO 2009 Paper #M402 (Advances in Laser Based Joining Processes of Micro-Devices using Localised Heating)

    Advances in Laser Based Joining Processes of Micro-Devices using Localised Heating
    Authors:
    Norbert Lorenz, Heriot-Watt University; Edinburgh Great Britain
    Martin D. Smith, Heriot-Watt University; Edinburgh
    Suzanne Millar, Heriot-Watt University; Edinburgh Great Britain
    Marc Desmulliez, Heriot-Watt University; Edinburgh
    Duncan P. Hand, Heriot-Watt University; Edinburgh Great Britain
    Presented at ICALEO 2009

    One of the remaining issues in the fabrication of micro-devices, including MEMS, is the packaging process. Standard techniques involve heating the whole device to high temperatures, preventing the use of temperature-sensitive materials wi...

    $28.00

  • ICALEO 2009 Paper #M308 (Laser Micro Processing of Metal and Silicon Using 100Khz and 2Mhz Ultrafast Lasers)

    Laser Micro Processing of Metal and Silicon Using 100Khz and 2Mhz Ultrafast Lasers
    Authors:
    John Lopez, Alphanov; Talence France
    Charly Loumena, Alphanov; Talence France
    Victor Archambault, Alphanov; Talence France
    Yoann Zaouter, Amplitude Systemes; Pessac France
    Alexandre Trisorio, Amplitude Systemes; Pessac France
    Marc Faucon, Alphanov; Talence France
    Eric Mottay, Amplitude Systemes; Pessac France
    Presented at ICALEO 2009

    Ultrafast laser micromachining has been widely proven to be a high quality, high flexibility process, with numerous potential, industrial applications. Indeed, femtosecond laser is a key technology...

    $28.00

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