• PICALO 2008 Paper #602 (Dissimilar Metal Welding Titanium and Steel Sheet by Fiber Laser)

    Dissimilar Metal Welding Titanium and Steel Sheet by Fiber Laser
    Authors:
    Jong-Do Kim, Department of Marine System Engineering, Korea Maritime University; Busan South Korea
    Seo-Jeong Park, Research Institute of Industrial Science & Technology; Pohang, Kyungbuk South Korea
    Woong-Seong Chang, Research Institute of Industrial Science & Technology; Pohang South Korea
    Presented at PICALO 2008

    Recently, the development of laser welding with dissimilar metal is demanded in the automobile, aerospace, and sea-water plant industry. Titanium alloy has been increasing to use for important mechanical parts. In this study, the lap and butt joint welding were performed with dissimila...

    $28.00

  • PICALO 2008 Paper #601 (Fibre Laser Welding of Ti6Al4V)

    Fibre Laser Welding of Ti6Al4V
    Authors:
    Jongkol Iammi, The University of Nottingham; Nottingham Great Britain
    Janet Folkes, The University of Nottingham; Nottingham Great Britain
    Guijun Bi, The University of Nottingham; Nottingham Great Britain
    Ian Pashby, The University of Nottingham; Nottingham Great Britain
    Presented at PICALO 2008

    Ti6Al4V is widely used in the aerospace industry due to its lightweight and high strength properties. Joining titanium is of prime importance and while other welding techniques have been documented, the use of a fibre laser to weld this material has not been extensively investigated. In this paper, autogenously butt weld joi...

    $28.00

  • PICALO 2008 Paper #511 (New Development of Far Distance Coaxial Powder Feeding System)

    New Development of Far Distance Coaxial Powder Feeding System
    Authors:
    Xichen Xichen, Laser Processing Center,Tianjin Polytechnic University; Tianjin AB Peoples Republic of China
    Liwei Feng, Tianjin Polytechnic University; Tianjin Peoples Republic of China
    Zhen Cao, Tianjin Polytechnic University; Tianjin Peoples Republic of China
    Nan Yang, Tianjin Polytechnic University; Tianjin Peoples Republic of China
    Presented at PICALO 2008

    Coaxial laser cladding has been widely used to 3D components direct manufacturing and repairing expensive parts. A new far distance coaxial powder feeding system has been developed. It consists of a mult dipper powder feeder,four ...

    $28.00

  • PICALO 2008 Paper #509 (Influence of Laser Dmd Technics on Microstructure of Inconel 718 High-Temperature Alloy)

    Influence of Laser Dmd Technics on Microstructure of Inconel 718 High-Temperature Alloy
    Authors:
    Jianhua Yao, Zhejiang University of Technology; Hangzhou Peoples Republic of China
    Jyoti Mazumder, University of Michigan; Ann Arbor MI USA
    Presented at PICALO 2008

    Direct Metal Deposition (DMD), combined with CAD/CAM technology, material powder metallurgy technology, optics technology, is an effective method of rapid manufacturing, which can be used to control the properties of metalwork by controlling the microstructure of metal deposition layer. As a high-temperature nickel-base alloy containing high Nb, Inconel 718 is widely applied in the key parts of aerospace engines in virtue o...

    $28.00

  • PICALO 2008 Paper #507 (Microstructural Evolution of a Graded Nickel-Titanium Alloy in Laser Solid Forming)

    Microstructural Evolution of a Graded Nickel-Titanium Alloy in Laser Solid Forming
    Authors:
    Xiaojing Xu, Northwest Polytechnical University; Xi'an AZ Peoples Republic of China
    Presented at PICALO 2008

    Laser Solid Forming (LSF) has been considered as a significant and promising technology to fabricate functionally graded materials. A rapidly solidified binary Nickel-Titanium graded material was fabricated by a CO2 laser solid forming equipment, using argon as the protecting gas. The compositional gradient in the graded alloy was changed from pure Ni to Ni-35at.%Ti in a thin-wall sample with the height of 24 mm. The results of SEM and EDS analysis showed that a series of phase evolutions, γ dend...

    $28.00

  • PICALO 2008 Paper #506 (Quality and Properties of Laser-deposited Metals)

    Quality and Properties of Laser-deposited Metals
    Authors:
    Richard Grylls, Optomec; Albuquerque NM USA
    James Bullen, Optomec; Albuquerque NM USA
    David Keicher, Optomec; Albuquerque NM USA
    Presented at PICALO 2008

    Laser-Deposition of metals, such as titanium, stainless steel, nickel, and cobalt alloys, has found increasing application in repair and rapid manufacturing. The layerwise additive approach results in unconventional microstructures, and thus can also result in unconventional material properties. With a suitable choice and control of process parameters, the solidifying metal can cool at rates of over 1000°C/s, which can result in very fine microstructures. ...

    $28.00

  • PICALO 2008 Paper #505 (Innovative Laser Consolidation Process for Making Net-shape Functional Components for Various Industrial Applications (Invited Paper))

    Innovative Laser Consolidation Process for Making Net-shape Functional Components for Various Industrial Applications (Invited Paper)
    Authors:
    Lijue Xue, National Research Council Canada; London ON Canada
    Presented at PICALO 2008

    Laser consolidation is a novel computer-aided manufacturing process being developed by the Integrated Manufacturing Technologies Institute of National Research Council of Canada (NRC-IMTI). This rapid manufacturing process produces net-shape functional metallic parts layer by layer directly from a CAD model by using a laser beam to melt the injected powder and re-solidifying it on the substrate or previous layer. As an alternative to the conventional machining process,...

    $28.00

  • PICALO 2008 Paper #504 (Direct Diode Laser Deposition of Functionally Graded Ti-6Al-4V and Inconel 718 Components)

    Direct Diode Laser Deposition of Functionally Graded Ti-6Al-4V and Inconel 718 Components
    Authors:
    Kamran Shah, The University of Manchester; Manchester Great Britain
    Andrew Pinkerton, The University of Manchester; Manchester Great Britain
    Richard Moat, The University of Manchester; Manchester Great Britain
    Lin Li, The University of Manchester; Manchester Great Britain
    Michael Preuss, The University of Manchester; Manchester Great Britain
    Presented at PICALO 2008

    Direct laser deposition (DLD) has developed from a prototyping to a single metal manufacturing tool. Its potential for creating multi-material and functionally graded structures is n...

    $28.00

  • PICALO 2008 Paper #502 (Physical Influences of the Plasma during Metal Powder Irradiation using Different Wavelength Laser Systems)

    Physical Influences of the Plasma during Metal Powder Irradiation using Different Wavelength Laser Systems
    Authors:
    Konrad Bartkowiak, Fraunhofer IWS; Dresden Germany
    Mikhail Vasilyev, The Univ. of Michigan; Ann Arbor, MI USA
    Presented at PICALO 2008

    The plasma effect of the irradiated metal powder surface is a physical phenomenon which can give significant information about composition created in the melt pool and also it indicates range of temperatures involved in this process. It was observed that direct laser deposition (DLD) process is not completely free from plasma effects. Obviously it depends on laser cladding parameters, influence of shielding gas and deposited material, ...

    $28.00

  • PICALO 2008 Paper #501 (Analysis of the Powder Bed Laser Melting Process for Direct Manufacturing of Metallic Components (Invited Paper))

    Analysis of the Powder Bed Laser Melting Process for Direct Manufacturing of Metallic Components (Invited Paper)
    Authors:
    Olivier Hercher, Gip Gerailp; Arcueil France
    Pascal Aubry, Gip Gerailp; Arcueil France
    Philippe Robert, Gerailp; Cedex France
    Presented at PICALO 2008

    In this article, we propose to investigate the capabilities of the powder bed laser melting process for the direct manufacturing of aerospace components. First, we describe the powder bed laser melting process. The article starts with a brief presentation of the context of the study by presenting the main GERAILP projects related to the powder bed...

    $28.00

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