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  • ICALEO 2009 Paper #607 (Fiber Laser Blanking of Coil Strips at Extreme Speed-Extreme-Power)

    Fiber Laser Blanking of Coil Strips at Extreme Speed-Extreme-Power
    Authors:
    Charles Caristan, Air Liquide Industrial U.S. LP; Houston TX USA
    Jay Finn, Automatic Feed Inc.; Napoleon OH USA
    Presented at ICALEO 2009

    Fiber lasers for flat bed laser cutting systems open new niche applications where users can take advantage of their high wall-plug to beam output energy efficiency, low maintenance burden, and a leaner manufacturing approach with the elimination of external beam alignment needs for set-up. The increase in output power of fiber lasers also call for the right choice in methods and machines. This paper presents developments of special optics and methods at extreme speed ext...

    $28.00

  • ICALEO 2009 Paper #605 (Fiber Laser Orbital Cutting of Stainless Steel Tubes)

    Fiber Laser Orbital Cutting of Stainless Steel Tubes
    Authors:
    Tuomas Purtonen, Lappeenranta University of Technology; Lappeenranta Finland
    Antti Salminen, -; -
    Presented at ICALEO 2009

    Fiber laser cutting of metallic materials has been studied in numerous occasions for the past few years. Most of the research done in this field has been focused on one or two-dimensional vertical cutting of sheet metals. Different industrial aspects have shown an increasing interest in laser cutting of pipes. Conventional CO2-laser laser pipe cutting machines can not fulfill the requirements set for some applications. Some applications of pipe cutting are such that vertical cutting positions can n...

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  • ICALEO 2009 Paper #602 (Effects of Internal Design Geometry in De Laval Nozzles for Off-Axis Assist Gas Injection on Inert-Gas Laser Cutting Performance)

    Effects of Internal Design Geometry in De Laval Nozzles for Off-Axis Assist Gas Injection on Inert-Gas Laser Cutting Performance
    Authors:
    Antonio Riveiro, Universidade De Vigo; Vigo Spain
    Felix Quintero, Universidade De Vigo; Vigo Spain
    Rafael Comesana, Universidade De Vigo; Vigo Spain
    Jesus Del Val, Universidade De Vigo; Vigo Spain
    Mohamed Boutinguiza, Universidade De Vigo; Vigo Spain
    Fernando Lusquinos, Universidade De Vigo; Vigo Spain
    Juan Pou, Universidade De Vigo; Vigo Spain
    Presented at ICALEO 2009

    The aerodynamic interactions of the assist gas during fusion laser cutting are an essential parameter determining c...

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  • ICALEO 2009 Paper #601 (Scaling Laws for the Reactive-Gas Laser Cutting of Thick Steel Sheets)

    Scaling Laws for the Reactive-Gas Laser Cutting of Thick Steel Sheets
    Authors:
    Anatoly Orishich, Institute of Theoretical and Applied Mechanics, Russian Academy of Sciences, Sib; Novosibirsk Russia
    Alexandr Malikov, Itpm Sb Ras; Novosibirsk Russia
    Victor Shulyatyev, Itpm Sb Ras; Novosibirsk Russia
    Presented at ICALEO 2009

    In spite of many investigations, modern theoretical models do not allow to predict the optimum modes of the laser cutting from the viewpoint of the minimum roughness. This is particularly important for thick sheets. In the present paper, for the case of low-carbon steel of 5 25 mm thick, we defined experimentally the parameter range at which the cu...

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  • ICALEO 2009 Paper #509 (Investigation on the Electrochemical Catalysis Properties of NI-Decorated Nanoporous Copper Formed by Hybrid Laser Deposition)

    Investigation on the Electrochemical Catalysis Properties of NI-Decorated Nanoporous Copper Formed by Hybrid Laser Deposition
    Authors:
    Yu Gu, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
    Mingxing Ma, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
    Minlin Zhong, Tsinghua University; Beijing Peoples Republic of China
    Wenjin Liu, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
    Changsheng Dong, -; -
    Yide Kan, -; -
    Presented at ICALEO 2009

    Nano-alloys or nano-structure often display novel physical, chemical and mech...

    $28.00

  • ICALEO 2009 Paper #508 (Nano WC Powder Cold Enhancing of Light Metal Surface by Laser Shock Peening Process)

    Nano WC Powder Cold Enhancing of Light Metal Surface by Laser Shock Peening Process
    Authors:
    Renjie Zhu, Tsinghua University, Dept of Mechanical Engineering; Beijing Peoples Republic of China
    Minlin Zhong, Tsinghua University; Beijing Peoples Republic of China
    Liang Lv, -; -
    Changsheng Dong, -; -
    Wenjin Liu, -; -
    Presented at ICALEO 2009

    Light metal alloys are nowadays widely used as structure materials in aerospace, transportation and electronic industries due to their good strength and light weight. One of the issues is their poor surface hardness resulting in poor wear resistance and shorter life time. Many efforts have been made to hard...

    $28.00

  • ICALEO 2009 Paper #507 (New Analysis on Laser-induced Damage Mechnism of CCD Device)

    New Analysis on Laser-induced Damage Mechnism of CCD Device
    Authors:
    Jingjing Dai, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
    Zhiyong Wang, Institute of Laser Engineering, Beijing University of Technology; Beijing Peoples Republic of China
    Presented at ICALEO 2009

    CCD (Charge Coupled Devices )is a solid-state TV camera tube which is widely used in many fields for its high nicety and sensitivity. However, just because of its high sensitivity to light, it is easily disturbed or damaged by laser. The research on laser inducing effect to CCD is of a great significance. Now the researches on the damage of CCD are focused on the po...

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  • ICALEO 2009 Paper #506 (Transition Metal Coatings on Graphite Via Laser Processing)

    Transition Metal Coatings on Graphite Via Laser Processing
    Authors:
    Deepak Rajput, Univ. of Tenn. Space Institute; Tullahoma TN USA
    Lino Costa, University of Tennessee Space Institute; Tullahoma TN USA
    Kathleen Lansford, University of Tennessee Space Institute; Tullahoma TN USA
    Alexander Terekhov, -; -
    George Murray, University of Tennessee Space Institute; Tullahoma TN USA
    William Hofmeister, University of Tennessee Space Institute; Tullahoma TN USA
    Presented at ICALEO 2009

    Graphite is a potential high temperature structural material due to its low specific gravity and high strength along with exceptional chemical and physicomec...

    $28.00

  • ICALEO 2009 Paper #505 (Research and Development of Laser Additive Manufacturing in Northwestern Polytechnical University)

    Research and Development of Laser Additive Manufacturing in Northwestern Polytechnical University
    Authors:
    Weidong Huang, Northwestern Polytechnical University; Xian Peoples Republic of China
    Presented at ICALEO 2009

    Research of Laser Additive Manufacturing (LAM) began at 1995 at the State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, China. The emphasis has been focused on obtaining excellent mechanical properties for LAMed metal parts through careful control of the material microstructures. The materials of LAMed parts include alloys of titanium, superalloys, and stainlessness steel. The mechanical properties of LAMed samples are usually in the classes of...

    $28.00

  • ICALEO 2009 Paper #504 (3D Laser Forming Through Circle Line Heating)

    3D Laser Forming Through Circle Line Heating
    Authors:
    K. Venkadeshwaran, School of Laser Science and Engineering; Jadavpur WA India
    Sandip Das, School of Laser Science and Engineering; Jadavpur India
    Dipten Misra, School of Laser Science and Engineering; Jadavpur India
    Presented at ICALEO 2009

    Metal forming by a moving heat source is a proven method for forming a sheet metal into desired shape. Line heating in straight line path is sufficient to form shapes with single curvature. However, to form spatially curved or doubly curved surfaces, it is more convenient to apply circle line heating. A single pass of circle line heating at a stretch for full circle over the plat...

    $28.00

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