Search for dissertations about: "wear mechanisms"

Showing result 1 - 5 of 105 swedish dissertations containing the words wear mechanisms.

  1. 1. On wear of wood-cutting tools : Tool materials, wear mechanisms and modelling

    University dissertation from Karlstad : Karlstad University Studies

    Author : Johan Nordström; [2005]
    Keywords : Tool material; Wood cutting; Wear; Modelling;

    Abstract : Bandsaw blades are commonly used in the sawmill industry for timber cutting. The saw teeth are gradually worn during cutting and will finally cause unacceptable surface roughness and dimensional deviations on the sawn wood product. Maintenance by re-sharpening of the saw teeth is therefore necessary after a certain time of sawing. READ MORE

  2. 2. Simulation of Wheel and Rail Profile Evolution Wear Modelling and Validation

    University dissertation from Stockholm : KTH

    Author : Roger Enblom; KTH.; [2004]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; contact; wear; wear prediction; wear model; wheel profile; rail profile; simulation vehicle-track interaction; multibody simulation; MBS; TECHNOLOGY; TEKNIKVETENSKAP;

    Abstract : Numerical procedures for reliable wheel and rail wearprediction are rare. Recent development of simulationtechniques and computer power together with tribologicalknowledge do however suggest computer aided wear prediction. READ MORE

  3. 3. Wear mechanisms in sheet metal forming Effects of tool microstructure, adhesion and temperature

    University dissertation from Karlstad : Karlstad University

    Author : Anders Gåård; Karlstads universitet.; Karlstads universitet.; Karlstads universitet.; [2008]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materialteknik; Materials Engineering; Galling; sheet metal forming; wear; friction; adhesion; temperature;

    Abstract : The general trend in the car body manufacturing industry is towards low-series production and reduction of press lubricants and car weight. The limited use of lubricants, in combination with the introduction of high and ultrahigh-strength sheet materials, continuously increases the demands on the forming tools. READ MORE

  4. 4. Friction and Wear Mechanisms of Ceramic Surfaces With Applications to Micro Motors and Hip Joint Replacements

    University dissertation from Uppsala : Acta Universitatis Upsaliensis

    Author : Johanna Olofsson; Uppsala universitet.; [2011]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Tribology; Friction; Wear; Ceramic; Tribofilm; Alumina; Silicon nitride; Ultrasonic Motors; Hip Joint Replacement; PVD coating; TECHNOLOGY Materials science; TEKNIKVETENSKAP Teknisk materialvetenskap; Teknisk fysik med inriktning mot materialvetenskap; Engineering Science with specialization in Materials Science;

    Abstract : Surfaces exposed to wear always transform and typically a layer of new structure and composition is formed. This layer, often called tribofilm, changes the friction and wear properties. READ MORE

  5. 5. On Simulation of Uniform Wear and Profile Evolution in the Wheel - Rail Contact

    University dissertation from Stockholm : KTH

    Author : Roger Enblom; KTH.; [2006]
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; wheel-rail contact; wear; wear prediction; wear model; wheel profile; rail; TECHNOLOGY Engineering mechanics Vehicle engineering; TEKNIKVETENSKAP Teknisk mekanik Farkostteknik;

    Abstract : Numerical procedures for reliable wheel and rail wear prediction are rare. Recent development of simulation techniques and computer power together with tribological knowledge do however suggest computer aided wear prediction as possible. READ MORE