Search for dissertations about: "aluminium forming"

Showing result 1 - 5 of 40 swedish dissertations containing the words aluminium forming.

  2. 1. Hydro-mechanical forming of aluminium tubes : on constitutive modelling and process design

    Author : Mikael Jansson; Larsgunnar Nilsson; Odd Sture Hopperstad; Linköpings universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Hydroforming; Aluminium Extrusions; Anisotropic material; Solid mechanics; Fastkroppsmekanik;

    Abstract : Tube hydroforming is a forming method which has several advantages. By using pressure in combination with material feeding it is possible to manufacture products with high structural integration and tight dimensional tolerances. The forming method is especially suited for aluminium alloys which have a relatively low ductility. READ MORE

  4. 2. 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

  5. 3. Warm Sheet Metal Forming with Localized In-Tool Induction Heating

    Author : Linus Larsson; Industriell Produktion; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; warm sheet metal forming. elevated temperature; aluminium; malgnesiurn. induction heating;

    Abstract : The increasing use of light metals and high strength steel in the automobile industry, demands for new sheet metal forming processes that can be applied successfully. In this thesis the subject of warm sheet metal forming is studied. READ MORE

  6. 4. Hot forming tribology : galling of tools and associated problems

    Author : Leonardo Pelcastre; Ewald Badisch; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Maskinelement; Machine Elements; Centrumbildning - Centrum för högpresterande stål CHS ; Centre - Centre for High Performance Steel CHS ;

    Abstract : In recent years, the use of ultra high-strength steels (UHSS) as structural reinforcements and in energy-absorbing systems in automobiles has increased rapidly; mainly in view of their favourable strength to weight ratios. However, due to their high strength, the formability of UHSS is poor, thus complex-shaped UHSS components are invariably produced through hot-metal forming processes. READ MORE

  7. 5. Simulation of bending and hydroforming : constitutive modeling and failure prediction

    Author : Mikael Jansson; Linköpings universitet; []
    Keywords : hydroforming; anisotropy; aluminium; finite element simulation; forming limits;

    Abstract : In recent years, the automotive industry has shown increased interest in reducing weight and improving environmental effects of cars. This has lead to an increased use of lightweight parts. READ MORE