• ICALEO 2010 Paper #302 (Laser Drilling in Ablation Regime : Study of Drilling Velocity with Decoupled Q-Switch Laser)

    Laser Drilling in Ablation Regime : Study of Drilling Velocity with Decoupled Q-Switch Laser
    Authors:
    Laurent Berthe, Laboratoire Procédés et Inginièrie en matériaux et Mécanique, UPR CNRS 8006; Paris Cedex France
    Matthieu Schneider, Laboratoire PIMM Procédé et Ingénierie en Mécanique et Matériaux CNRS/ Arts et Métiers Paristech UPR 8006; Paris France
    Maryse Muller, Laboratoire PIMM Procédé et Ingénierie en Mécanique et Matériaux CNRS/ Arts et Métiers Paristech UPR 8006; Paris Cedex France
    Florian Carro, Laboratoire PIMM Procédé et Ingénierie en Mécanique et Matériaux CNRS/ Arts et Métiers Paristech UPR 8006; Paris Cedex France
    Presented at I...

    $28.00

  • ICALEO 2010 Paper #303 (Reliable Laser Micro-Welding of Copper)

    Reliable Laser Micro-Welding of Copper
    Authors:
    Christoph Ruettimann, LASAG AG, C.F.L.; Thun Switzerland
    Ulrich Duerr, LASAG AG, C.F.L.; Thun
    Anas Moalem, Laserzentrum Hannover e.V; - Germany
    Presented at ICALEO 2010

    The reliability of copper (spot) welds is still a problem today concerning the high demands of e.g. spot or contact welding for the electronic or medical industry. Two aspects characterising this reliability are tackled: the reproducibility of the weld geometry and the reduction of thermally induced side effects, like sputtering.
    One problem in copper welding is the low absorption on a clean polished surface which is about 5% at room temperature at the 1...

    $28.00

  • ICALEO 2010 Paper #304 (Continous Wave Fiber Laser Keyhole Drilling for the Production of Zero Tapered, Low Recast Holes in Ni-Alloys)

    Continous Wave Fiber Laser Keyhole Drilling for the Production of Zero Tapered, Low Recast Holes in Ni-Alloys
    Authors:
    H K Sezer, Laser Processing Research Centre School of Mechanical. Aerospace and Civil Engineering. The University of Manchester; - USA
    L Li, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester
    S Leigh, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester
    Z Liu, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester
    Pres...

    $28.00

  • ICALEO 2010 Paper #305 (Laser Percussion Drilling of Coated and Uncoated Aerospace Materials with a High Beam Quality and High Peak Power Lamp Pumped Pulsed Nd:Yag Laser)

    Laser Percussion Drilling of Coated and Uncoated Aerospace Materials with a High Beam Quality and High Peak Power Lamp Pumped Pulsed Nd:Yag Laser
    Authors:
    Mohammed Naeem, GSI Group, Inc. - Laser Division; Rugby Great Britain
    Presented at ICALEO 2010

    Aerospace gas turbines require a large number of small diameter holes (

    $28.00

  • ICALEO 2010 Paper #306 (Drilling of Aluminum with High Power Q-Switched Lasers)

    Drilling of Aluminum with High Power Q-Switched Lasers
    Authors:
    Leonard Migliore, Coherent, Inc.; Santa Clara CA USA
    George Nazary, Coherent, Inc.; Santa Clara CA USA
    Presented at ICALEO 2010

    Advances in the design of gain modules for diode-pumped solid-state lasers have allowed the manufacture of extremely compact high power products with an output wavelength of 1064nm. Their high Q-switched pulse energy combined with good mode quality also enable highly efficient harmonic conversion, resulting in a product producing several hundred watts of average power at a wavelength of 532nm.

    Among the applications for which these products may be suited is the rapid drilling of high-qualit...

    $28.00

  • ICALEO 2010 Paper #307 (Laser Drilling of Nickel Alloy: Effect of Process Gases on Drilling Time and Hole Quality)

    Laser Drilling of Nickel Alloy: Effect of Process Gases on Drilling Time and Hole Quality
    Authors:
    M M Okasha, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester Great Britain
    P T Mativenga, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester Great Britain
    L Li, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester Great Britain
    H K Sezer, Laser Processing Research Centre, School of Mechanical, Aerospace and Civil Engineering, The University of ...

    $28.00

  • ICALEO 2010 Paper #402 (Wavelength Optimization for Laser Metal Deposition)

    Wavelength Optimization for Laser Metal Deposition
    Authors:
    Antoni Candel-Ruiz, TRUMPF Laser- und Systemtechnik GmbH; Ditzingen Germany
    David Havrilla, TRUMPF Inc. und Systemtechnik GmbH; Plymouth MI USA
    Jűrgen Metzger, TRUMPF Laser- und Systemtechnik GmbH; Ditzingen Germany
    Presented at ICALEO 2010

    Study on deposition rate and quality as a function of laser wavelength and laser power.
    The study shows application results on the use of different wavelength lasers with different beam quality and laser power. Requirements outlining which laser for which application has been developed.

    $28.00

  • ICALEO 2010 Paper #403 (Comprehensive Predictive Modeling and Parametric Analysis of Multi-Track Direct Laser Deposition Processes)

    Comprehensive Predictive Modeling and Parametric Analysis of Multi-Track Direct Laser Deposition Processes
    Authors:
    Shoayi Wen, Center for Laser-based Manufacturing, School of Mechanical Engineering, Purdue University; W. Lafayette IN USA
    Yung Shin, Center for Laser-based Manufacturing, School of Mechanical Engineering, Purdue University; W. Lafayette IN USA
    Presented at ICALEO 2010

    Laser direct deposition is a very useful method of fabricating building complex parts directly from CAD drawings. Despite its usefulness, many parameters that affect the final quality of the fabricate part make the selection of optimal operating conditions difficult. The supplying powder jet conditi...

    $28.00

  • ICALEO 2010 Paper #404 (An Iterative, Energy-Mass Balance Model for Laser Metal Deposition)

    An Iterative, Energy-Mass Balance Model for Laser Metal Deposition
    Authors:
    M Naveed Ahsan, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester Great Britain
    Wei Wang, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester Great Britain
    Andrew J Pinkerton, School of Mechanical, Aerospace and Civil Engineering, The University of Manchester; Manchester Great Britain
    Presented at ICALEO 2010

    Multiple analytical models of the laser metal deposition process have been presented, but most rely on
    sequential solution of the energy and mass balance equations presented. Discretization of the pr...

    $28.00

  • ICALEO 2010 Paper #405 (Numerical Modeling of Direct Metal Deposition : Heat Transfer / Solute Transport of Ternary System)

    Numerical Modeling of Direct Metal Deposition : Heat Transfer / Solute Transport of Ternary System
    Authors:
    Hyung Min Chae, Center for Laser-Aided Intelligent Manufacturing, University of Michigan; Ann Arbor MI USA
    Jyoti Mazumder, Center for Laser Aided Intelligent Manufacturing University of Michigan; Ann Arbor MI USA
    Presented at ICALEO 2010

    Laser aided Direct Metal Deposition (DMD) process is used for rapid prototyping, tooling and die production, and repairing damaged parts or worn parts by depositing metal powders. Numerical simulation of DMD process helps provide optimal process parameters for better mechanical / thermal properties of products without performing a series of e...

    $28.00

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