Search for dissertations about: "Produktions- och materialteknik"

Showing result 1 - 5 of 86 swedish dissertations containing the words Produktions- och materialteknik.

  1. 1. A study of the adhesion strength of plasma sprayed coatings

    University dissertation from Göteborg : Chalmers University of Technology

    Author : M. Fouzi Bahbou; Fouzi Bahbou; Högskolan Väst.; [2007]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Industrial engineering and economy Manufacturing engineering and work sciences Manufacturing engineering; TEKNIKVETENSKAP Industriell teknik och ekonomi Produktion och arbetsvetenskap Produktionsteknik; TECHNOLOGY Chemical engineering Metallurgical process and manufacturing engineering; TEKNIKVETENSKAP Kemiteknik Metallurgisk process- och produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik; Grit blasting; Thermal spraying; Coating; Surface pre-treatment; Surface roughness; Fractal analysis; Adhesion strength; Mechanical anchoring; Protal® process; Splat; Splat.;

    Abstract : Surface preparation prior to thermal spraying is a key factor in ensuring a good adhesion of the coating onto the part to be coated. Surface pre-treatment conditions and methods have mainly been developed experimentally and have changed little over the years. READ MORE

  2. 2. Microstructure model for Ti-6Al-4V used in simulation of additive manufacturing

    University dissertation from Luleå : Luleå tekniska universitet

    Author : Corinne Charles Murgau; Corinne Charles; Högskolan Väst.; Luleå tekniska universitet.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Production Technology; Produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik; Titanium alloy; Ti-6Al-4V; Welding; Metal deposition; Additive manufacturing; Wire feed; Finite Element Method; Microstructure model; Johnson-Mehl-Avrami- Kolmogorov; Thermally driven; Material Mechanics; Materialmekanik;

    Abstract : This thesis is devoted to microstructure modelling of Ti-6Al-4V. The microstructure and the mechanical properties of titanium alloys are highly dependent on the temperature history experienced by the material. The developed microstructure model accounts for thermaldriving forces and is applicable for general temperature histories. READ MORE

  3. 3. Non-intrusive instrumentation and estimation Applications for control of an additive manufacturing process

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Petter Hagqvist; Högskolan Väst.; [2015]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Manufacturing and materials engineering; Produktions- och materialteknik; Additive Manufacturing; Automation; Emissivity; Emissivity Compensated Spectral Pyrometry; Laser Metal Wire Deposition; Metal Deposition; Pyrometry; Resistance Feedback Control; Thermometry;

    Abstract : For integration of additive manufacturing into industrial production, there is a need for capable yet robust automation solutions. Such solutions are to ensure consistent process outputs, both with regard to deposit geometry and material properties. READ MORE

  4. 4. Modelling of cathode-plasma interaction in short high-intensity electric arc Application to Gas Tungsten Arc Welding

    University dissertation from Göteborg : Chalmers University of Technology

    Author : Alireza Javidi Shirvan; Högskolan Väst.; [2016]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; NATURVETENSKAP; NATURAL SCIENCES; Production Technology; Produktionsteknik; Manufacturing and materials engineering; Produktions- och materialteknik; Electric arc discharge; sheath; pre-sheath; Knudsen layer; doped refractory cathode; arc-cathode coupling; Gas Tungsten Arc simulation; OpenFOAM.; electric arc discharge;

    Abstract : In arc welding the quality of the weld is strongly influenced by the thermal history of the workpiece which is itself governed by the electric arc heat source. The models for predicting weld properties thus need a good evaluation of the distribution of the heat input from thearc to the workpiece. READ MORE

  5. 5. Simulation of robotic TIG-welding

    University dissertation from Lund : Lund Institute of Technology

    Author : Mikael Ericsson; Högskolan Väst.; Lund University.; Lunds universitet.; [2003]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TECHNOLOGY Materials science Other processing assembly; TEKNIKVETENSKAP Teknisk materialvetenskap Övrig bearbetning sammanfogning; TECHNOLOGY Other technology; TEKNIKVETENSKAP Övriga teknikvetenskaper; Manufacturing and materials engineering; Produktions- och materialteknik; Robotics; Bågsvetsning; robotteknik;

    Abstract : Robotised welding is one of the most important robot tasks used in manufacturing industry. The operator usually performs the programming of the robot manually, i.e. by jogging the robot arm to each coordinate pose in space. READ MORE