Search for dissertations about: "Laser technology"

Showing result 1 - 5 of 711 swedish dissertations containing the words Laser technology.

  1. 1. Laser cutting and piercing: Experimental and theoretical investigation

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Jetro Pocorni; Luleå tekniska universitet.; [2017]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing Systems Engineering; Produktionsutveckling; Laser cutting; laser piercing; efficiency; fibre laser; CO2 laser; high speed imaging;

    Abstract : This thesis concerns experimental investigations of laser cutting and piercing, with theoretical and practical discussions of the results. The thesis is made up of an introduction to laser cutting and six scientific Papers. READ MORE

  2. 2. Laser cladding an experimental and theoretical investigation

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Hans Gedda; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Produktionsutveckling; Manufacturing Systems Engineering;

    Abstract : Avhandlingen omfattar studier vid laserpåsvetsning och lasergjutning med CO2-laser och Nd:YAG-laser. Avhandlingen är indelad i sex kapitel. Kapitel 1 är en presentation/introduktion av laserpåsvetsning och några applikationsområden tillsammans med alla abstract, sammanfattningar och de viktigaste figurerna som ingår i de övriga kapitlen. READ MORE

  3. 3. Conduction laser welding modelling of melt pool with free surface deformation

    University dissertation from Trollhättan : University West

    Author : Josefine Svenungsson; Högskolan Väst.; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Conduction laser welding; numerical modelling; Computational Fluid Dynamics; OpenFOAM; free surface deformation; melt pool; Production Technology; Produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik;

    Abstract : Laser welding is commonly used in the automotive-, steel- and aerospace industry. It is a highly non-linear and coupled process where the weld geometry is strongly affected by the flow pattern in the melt pool. Experimental observations are challenging since the melt pool and melt flow below the surface are not yet accessible during welding. READ MORE

  4. 4. Phenomena in material addition to laser generated melt pools

    University dissertation from Luleå : Luleå University of Technology

    Author : Himani Siva Prasad; Luleå tekniska universitet.; [2019]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; laser metal deposition; additive manufacturing; laser welding; multi-material; high speed imaging; powder incorporation; off-axis wire feed; streak imaging; laser cladding; absorptivity; Produktionsutveckling; Manufacturing Systems Engineering;

    Abstract : .... READ MORE

  5. 5. The Absorption of Laser Light by Rough Metal Surfaces

    University dissertation from Luleå : Luleå University of Technology

    Author : David Bergström; Mittuniversitetet.; Luleå tekniska universitet.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap; absorptance; reflectance; laser; metals; roughness; integrating sphere; Produktionsutveckling; Manufacturing Systems Engineering;

    Abstract : In Laser Material Processing of metals, an understanding of the fundamental absorption mechanisms plays a vital role in determining the optimum processing parameters and conditions. The absorptance, which is the fraction of the incident laser light which is absorbed, depends on a number of different parameters. READ MORE