• ICALEO 2013 Paper #1905 (Investigations on Processing of Carbon Fiber Reinforced Plastics Using Ultrashort Pulsed Laser Radiation with High Average Power)

    Investigations on Processing of Carbon Fiber Reinforced Plastics Using Ultrashort Pulsed Laser Radiation with High Average Power
    Authors:
    Johannes Finger, Chair for Laser Technology, Rwth Aachen University; Aachen Germany
    Marco Weinand, Chair for Laser Technology, Rwth Aachen University; Aachen Germany
    Dirk Wortmann, Chair for Laser Technology, Rwth Aachen University; Aachen Germany
    Presented at ICALEO 2013

    Due to an outstanding ratio of strength to weight, carbon fiber reinforced plastics (CFRP) are a promising material for lightweight applications e.g. in aerospace and automotive industry. The main challenge for laser processing is the strong difference between the o...

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  • ICALEO 2013 Paper #1904 (Correlation of Interlaminar and Tensile Properties with Resulting Thermal Impact While CFRP Laser Processing)

    Correlation of Interlaminar and Tensile Properties with Resulting Thermal Impact While CFRP Laser Processing
    Authors:
    Oliver Suttmann, Laser Zentrum Hannover E.V.; Hannover Germany
    Peter Jaeschke, Laser Zentrum Hannover e.V.; Hannover USA
    Heinz Haferkamp, Laser Zentrum Hannover E.V.; Hannover Germany
    Presented at ICALEO 2013

    Continuous carbon fibre reinforced composites (CFRP) are recognized as having a significant lightweight construction potential for a wide variety of industrial applications. However, a today‘s barrier for a comprehensive dissemination of CFRP structures is the lack of economic, quick and reliable manufacture processes, e.g. the cutting and tr...

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  • ICALEO 2013 Paper #1903 (Macro-Structuring of Composite Material by UV-Laser Ablation)

    Macro-Structuring of Composite Material by UV-Laser Ablation
    Authors:
    Hagen Dittmar, Laser Zentrum Hannover e.V.; Hannover Germany
    Peter Jaeschke, Laser Zentrum Hannover E.V.; Hannover Germany
    Oliver Suttmann, Laser Zentrum Hannover E.V.; Hannover Germany
    Ludger Overmeyer, Laser Zentrum Hannover E.V.; Hannover Germany
    Presented at ICALEO 2013

    Composite materials like carbon fibre reinforced plastics (CFRP) or glass fibre reinforced plastics (GFRP) have been in use by the aviation and wind energy industry for years due to their lightweight benefits. With the automotive industry entering the CFRP market, the demand for a more economic CFRP production will in...

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  • ICALEO 2013 Paper #1902 ( Dependence of Cutting Carbon Fiber Reinforced Plastics with nanosecond Laser On The Laser Wavelength and Oxygen Concentration of the Air.)

    Dependence of Cutting Carbon Fiber Reinforced Plastics with nanosecond Laser On The Laser Wavelength and Oxygen Concentration of the Air.
    Authors:
    Shin-Ichiro Masuno, Osaka Univ.; Ibaraki,Osaka Pref. Japan
    Kenjiro Takahashi, Osaka Univ.; Ibaraki, Osaka Japan
    Yuji Sato, Osaka Univ.; Ibaraki, Osaka Japan
    Masahiro Tsukamoto, Osaka Univ.; Ibaraki, Osaka Japan
    Kazuya Miyagawa, Osaka Univ.; Ibaraki, Osaka Japan
    Kazuki Nakai, Osaka Univ.; Ibaraki, Osaka Japan
    Tatsuya Nariyama, Kinki Univ.; Higashiosaka, Osaka Japan
    Presented at ICALEO 2013

    Carbon fiber reinforced plastic(CFRP) is complex material made of carbon fibers and m...

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  • ICALEO 2013 Paper #1901 (High-Efficiency Laser Processing of CFRP)

    High-Efficiency Laser Processing of CFRP
    Authors:
    Rudolf Weber, IFSW, University of Stuttgart; Stuttgart Germany
    Volkher Onuseit, Ifsw, University of Stuttgart; Stuttgart
    Simon Tscheulin, Ifsw, University of Stuttgart; Stuttgart
    Thomas Graf, Ifsw, University of Stuttgart; Stuttgart
    Markus Grafried, Ifsw, University of Stuttgart; Stuttgart
    Presented at ICALEO 2013

    Industrial large-volume application of CFRP requires efficient and high-quality processing. Laser processing of carbon fibres is very promising but highly energy consuming due to the large sublimation enthalpy of graphite. In contrast, the sublimation enthalpy of the embedding...

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  • ICALEO 2013 Paper #1805 (Dissimilar Joining of Titanium Alloy Ti-6Al-4V to Aluminum Alloy 2024 Via Laser Welding)

    Dissimilar Joining of Titanium Alloy Ti-6Al-4V to Aluminum Alloy 2024 Via Laser Welding
    Authors:
    Vittorio Alfieri, University of Salerno; Fisciano Italy
    Fabrizia Caiazzo, University of Salerno; Fisciano Italy
    Vincenzo Sergi, University of Salerno; Fisciano Italy
    Presented at ICALEO 2013

    Dissimilar joining of titanium to aluminum is required for several purposes in automotive and aerospace industries. Nevertheless, a number of issues arise due to their different properties, in terms of crystal micro structure, melting point, heat conductivity and coefficient of linear expansion. In addition, brittle intermetallic formation is induced at the interface, thus affecting the...

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  • ICALEO 2013 Paper #1804 (Laser Processing of Thin Copper and Aluminium Thin Sheets with Green (532Nm) and Infrared (1064Nm) Pulsed Laser Beam Sources)

    Laser Processing of Thin Copper and Aluminium Thin Sheets with Green (532Nm) and Infrared (1064Nm) Pulsed Laser Beam Sources
    Authors:
    Paola De Bono, TWI Ltd; Cambridge USA
    Ioannis Metsios, TWI Ltd; Cambridge Great Britain
    Jonathan Blackburn, TWI Ltd; Cambridge Great Britain
    Paul Hilton, TWI Ltd; Cambridge Great Britain
    Presented at ICALEO 2013

    In this study processing of thin copper C101 (Cu C101) and aluminium 3003 (Al 3003) were investigated, using both infrared (IR), at 1064nm wavelength, and green, at 532nm wavelength, pulsed laser beam sources. The power density (peak power divided by the area of the minimum focused laser beam width) thresholds for ke...

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  • ICALEO 2013 Paper #1803 (Effect of Process Parameters on the Weld Quality in Laser Welding of Az31B Magnesium Alloy in Lap Joint Configuration)

    Effect of Process Parameters on the Weld Quality in Laser Welding of Az31B Magnesium Alloy in Lap Joint Configuration
    Authors:
    Masoud Harooni, Southern Methodist University-RCAM; Dallas TX USA
    Radovan Kovacevic, Southern Methodist University; Dallas TX
    Blair Carlson, GM Research Center; Warren MI
    Presented at ICALEO 2013

    Magnesium is the lightest structural metal; therefore, it has been used in different industries such as automotive, aerospace, electronics and defense. Among different joining processes, laser welding is highly efficient due to its low heat input, high depth-to-width ratio and good mechanical properties. A fiber laser is used to weld AZ31B magnesiu...

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  • ICALEO 2013 Paper #1802 (Investigation on the Laser Welding Process of Tin Phosphor Bronze)

    Investigation on the Laser Welding Process of Tin Phosphor Bronze
    Authors:
    Hui-chi Chen, Singapore Institute of Manufacturing Technology; Singapore Singapore
    Guijun Bi, Singapore Institute of Manufacturing Technology; Singapore Singapore
    Mui Ling Sharon Nai, Singapore Institute of Manufacturing Technology; Singapore Singapore
    Jun Wei, Singapore Institute of Manufacturing Technology; Singapore Singapore
    Presented at ICALEO 2013

    Tin phosphor bronze is a tin-based copper alloy which is widely used in the electronics industry. It is being used in components such as computer and mobile connectors, lead frames, vibrating plates and terminals. Because of the high...

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  • ICALEO 2013 Paper #1801 (Welding of Dissimilar Metallic Materials Using a Scanned Laser Beam)

    Welding of Dissimilar Metallic Materials Using a Scanned Laser Beam
    Authors:
    Paola De Bono, Twi Ltd; Cambridge Great Britain
    Paul Hilton, Twi Ltd; Cambridge Great Britain
    Jonathan Blackburn, TWI Ltd; Cambridge Great Britain
    Michael Gittos, TWI Ltd; Cambridge Great Britain
    Sullivan Smith, Twi Ltd; Cambridge Great Britain
    Presented at ICALEO 2013

    For most dissimilar metal combinations, a key challenge which must be addressed for fusion joining processes is the chemical incompatibility of the metals, which typically leads to the formation of brittle intermetallic phases and, consequently, inadequate weld properties. To counteract this issue, a te...

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