• ICALEO 2013 Paper #M1001 (Comparison Between Laser Technologies and Alternative Processes on Paint and Polymer Layer Removal on Composite Substrate)

    Comparison Between Laser Technologies and Alternative Processes on Paint and Polymer Layer Removal on Composite Substrate
    Authors:
    Charly Loumena, Alphanov; Talence France
    Anthony Kirsch, Alphanov; Talence France
    Rainer Kling, Alphanov; Talence Cedex France
    Presented at ICALEO 2013

    The application of composites and in particular CFRP (Carbon Fiber Reinforced Polymer) is a booming market. This material tends to gradually replace metals and alloys in many fields such as automotive, renewable energies, and aerospace. Indeed, composite materials combine high mechanical performances, low weight and good corrosion resistance. However this highly technical material requires ...

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  • ICALEO 2013 Paper #C103 (Additive Manufacturing In Micro Scale)

    Additive Manufacturing In Micro Scale
    Authors:
    Christian Noelke, Laser Zentrum Hannover e.V.; Hannover Germany
    Matthias Gieseke, Laser Zentrum Hannover e.V.; Hannover Germany
    Stefan Kaierle, Laser Zentrum Hannover e.V.; Hannover Germany
    Presented at ICALEO 2013

    Additive manufacturing is getting increasingly attractive for industrial production of unique or small series parts. Since a lot industrial metals like titanium and aluminum are established in AM processes, increasing the resolution within these processes is the next challenge. The aim is not only the production of micro-sized parts or important details, there is also a request to achieve ready to use surface qu...

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  • ICALEO 2013 Paper #906 (Study of Filler Metal Mixing and Its Implication on Weld Homogeneity of Laser-Hybrid and Laser Cold-Wire Welded Thick Austenitic Stainless Steel Joints)

    Study of Filler Metal Mixing and Its Implication on Weld Homogeneity of Laser-Hybrid and Laser Cold-Wire Welded Thick Austenitic Stainless Steel Joints
    Authors:
    Miikka Karhu, VTT Technical Research Centre of Finland; Lappeenranta Finland
    Veli Kujanpaaa, Vtt Technical Research Centre of Finland; Lappeenranta Finland
    Andrey Gumenyuk, Bam - Federal Institute for Materials Research and Testing, Berlin, Germany; Berlin Germany
    Marco Lammers, Bam - Federal Institute for Materials Research and Testing, Berlin, Germany; Berlin Germany
    Presented at ICALEO 2013

    Austenitic stainless steel AISI 316L grade base material with butt joint thicknesses of 10-15 mm and diffe...

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  • ICALEO 2013 Paper #905 (Hybrid Laser Welding of Single Sided Fully Penetrated Fillet Welds)

    Hybrid Laser Welding of Single Sided Fully Penetrated Fillet Welds
    Authors:
    Wojciech Suder, Cranfield University; Cranfield Great Britain
    Josef Camilleri, Cranfield University; Cranfield Great Britain
    Stewart Williams, Cranfield University; Cranfield Great Britain
    Presented at ICALEO 2013

    Fillet welds are inherent part of large structures in shipbuilding industry, where distortion is a major issue. Hybrid laser welding enables fully penetrated fillet welds to be achieved with a lower energy than arc-based welding processes. This has significant effect on increase of productivity, decrease of distortion and reduction of weight. To achieve defects-free welds with good fa...

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  • ICALEO 2013 Paper #904 (Hybrid Laser Welding of Cladded Tubes.)

    Hybrid Laser Welding of Cladded Tubes.
    Authors:
    Frederic Coste, PIMM-UMR 8006; Paris France
    Presented at ICALEO 2013

    The use of cladded pipe-lines with an inner layer of stainless steel or Nickel base alloys tends to increase for deep offshore pipe line applications. End users and certification code generally ask for conventional welding. This ensures an optimum quality on the inner side of the root pass and preserves the anti-corrosion property of the inner clad. However, this is obtained with a small thickness of the first pass and a low welding speed. Laser hybrid welding seems to be an attractive technique for increasing both the thickness of the root pass and the welding speed. Combinati...

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  • ICALEO 2013 Paper #902 (Induction Assisted Gma-Laser Hybrid Welding of High-Strength Fine-Grain Structural Steels)

    Induction Assisted Gma-Laser Hybrid Welding of High-Strength Fine-Grain Structural Steels
    Authors:
    Rabi Lahdo, Laser Zentrum Hannover e.V.; Braunschweig USA
    Oliver Seffer, Laser Zentrum Hannover E.V.; Hannover Germany
    Andre Springer, Laser Zentrum Hannover E.V.; Hannover Germany
    Stefan Kaierle, Laser Zentrum Hannover E.V.; Hannover Germany
    Ludger Overmeyer, Laser Zentrum Hannover E.V.; Hanover Germany
    Mareike Collmann, Institut FüR Stahlbau; Hannover Germany
    Peter Schaumann, Institut FüR Stahlbau; Hannover Germany
    JöRg Neumeyer, Institut FüR Elektroprozesstechnik; Hannover Germany
    Holger Schulbe, Institut ...

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  • ICALEO 2013 Paper #901 (A Study of High Power Fiber-Laser-TIG-Hybrid Welding of Low Alloyed Steel)

    A Study of High Power Fiber-Laser-TIG-Hybrid Welding of Low Alloyed Steel
    Authors:
    Antti Salminen, Lappeenranta University of Technology; Lappeenranta Finland
    Seppo Leppanen, La; Imatra Finland
    Presented at ICALEO 2013

    The use of laser welding is enlarging to new applications partly via various technological advancements. These include development of lasers and laser system components together with development in process techniques. The first studied and reported of so called laser-hybrid welding processes was laser-TIG-hybrid welding. This process has advantages over the laser-MIG-hybrid process due to the fact that wire feeding and arc parameters can really be controlled separate...

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  • ICALEO 2013 Paper #804 (Non-Disruptive, Low Loss In-Line Laser Beam Monitoring System for Industrial Laser Processing)

    Non-Disruptive, Low Loss In-Line Laser Beam Monitoring System for Industrial Laser Processing
    Authors:
    Michael Scaggs, HAAS Laser Technologies; Flanders NJ USA
    Gilbert Haas, Haas Laser Technologies, Inc.; Flanders NJ USA
    Presented at ICALEO 2013

    Monitoring both near and far field laser beam parameters is extremely helpful in understanding the quality of a laser process. The measurement of such parameters has not been practical to date due to the required disruption of the process beam in order to make the measurement. A significant quality control enhancement could be realized if one could monitor both near and far field patterns of the laser system during the process if it could...

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  • ICALEO 2013 Paper #801 (The Full Spectrum Absorptance of Engineering Grade Metals with Diverse Surface Appearances)

    The Full Spectrum Absorptance of Engineering Grade Metals with Diverse Surface Appearances
    Authors:
    Heng Zhao, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
    Dongyun Zhang, Institute of Laser Engineering, Beijing University of Technology; Beijing
    Rui Wu, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
    Congyang Li, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
    Presented at ICALEO 2013

    Acquisition of the as-received industrial material absorptance of light is important for guiding the laser machining...

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  • ICALEO 2013 Paper #703 (Research on Laser Drilling in Diverse Modes by Ns Pulse Laser)

    Research on Laser Drilling in Diverse Modes by Ns Pulse Laser
    Authors:
    Xiaobing Zhang, Beijing Aeronautical Manufacturing Technology Research Insitutte; Beijing Peoples Republic of China
    Presented at ICALEO 2013

    The paper reports the research of laser drilling technology by ns pulse laser for purpose of making cooling holes with thinner recast layer or even without recast in aero-engine. In research we employ diverse modes in making holes in nickel-based alloy samples. The first way is making holes with low power high frequency ns pulse laser in scanning mode of removing the material layer by layer, the second one is making holes with ns width pulse train laser in percussion mode, the third is ...

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