Search for dissertations about: "urban forming"

Showing result 1 - 5 of 25 swedish dissertations containing the words urban forming.

  2. 1. On Transfer of Work Material to Tools

    Author : Jannica Heinrichs; Staffan Jacobson; Urban Wiklund; Uppsala universitet; []
    Keywords : Tribology; Friction; Forming; Cutting; Galling; Material transfer; Tribological coatings; Surface finish; Micro mechanisms; Aluminium; Materialvetenskap; Materials Science;

    Abstract : Bulk forming and cutting are widely used to shape metals in industrial production. Bulk forming is characterized by large strains, extensive plastic deformation and large surface expansions. Cutting is characterized by high speeds, high pressures and high temperatures. READ MORE

  4. 2. Mechanics and tribology of micro- and nanolayered PVD coatings

    Author : Urban Wiklund; Uppsala universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Materials science; Materialvetenskap; Materials science; Teknisk materialvetenskap; materialvetenskap; Materials Science;

    Abstract : Thin coatings produced by physical vapour deposition (PVD) are increasingly applied tomechanical components such as metal cutting tools, forming tools and machine elements.Improved micro- and nanolayered PVD coatings have been studied with respect tomechanical and tribological properties. READ MORE

  5. 3. Wear of coated and uncoated PCBN cutting tool used in turning and milling

    Author : Susanne Sveen; Mikael Olsson; Magnus Odén; Urban Wiklund; Högskolan Dalarna; []
    Keywords : PCBN; PVD coating; Wear mechanisms; Tool wear; Metal cutting; Steel Forming and Surface Engineering; Stålformning och ytteknik;

    Abstract : This licentiate thesis has the main focus on evaluation of the wear of coated and uncoated polycrystalline cubic boron nitride cutting tool used in cutting operations against hardened steel. And to exam the surface finish and integrity of the work material used. READ MORE

  6. 4. Evolving Urban Culture in Transforming Cities Architectural and Urban Design in a Fluid Context

    Author : Mir Azimzadeh; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; evolution; generative process; space; configuration; culture; society; urban design; architecture; urban spatial systems; metamorphosis; domestic space; public space; place; analytic theory; space syntax; cultural types; local structure; urban function; housing estate; city; spatial interface; street system;

    Abstract : The practice of architectural and urban design being involved in forming the space in our cities and built environments has certain effects on the social life in society that in its turn conditions the performance of the practice. The continuous changes in cities and societies, however, are just partially caused by the practice of architectural and urban design. READ MORE

  7. 5. Self Lubrication on the Atomic Scale : Design, Synthesis and Evaluation of Coatings

    Author : Mattias Lindquist; Sture Hogmark; Urban Wiklund; Ian Hutchings; Uppsala universitet; []
    Keywords : Materials science; Tribology; low friction; PVD; sputtering; nanocomposite; Materialvetenskap;

    Abstract : In this thesis a new design concept of tribologically active coatings aimed for low friction applications, have been explored. Materials modeled by ab initio DFT calculations were realized through deposition of carbide and nanocomposite coatings by DC-magnetron sputtering. READ MORE