Search for dissertations about: "powder compaction"

Showing result 1 - 5 of 36 swedish dissertations containing the words powder compaction.

  1. 1. Micromechanics of Powder Compaction

    Author : Erik Olsson; Per-Lennart Larsson; Christophe Martin; KTH; []
    Keywords : Hållfasthetslära; Solid Mechanics;

    Abstract : Compaction of powders followed by sintering is a convenient manufacturing method for products of complex shape and components of materials that are difficult to produce using conventional metallurgy. During the compaction and the handling of the unsintered compact, defects can develop which could remain in the final sintered product. READ MORE

  2. 2. Experimental approaches to powder filling and lubrication in powder die pressing

    Author : Erik Hjortsberg; Chalmers University of Technology; []
    Keywords : XPS; friction; die filling; interference microscopy; density variations; lubrication; compaction; experimental equipment; tribology; powder metallurgy;

    Abstract : There is a continuous need to improve the mechanical properties of steel parts produced through powder metallurgy in order to ensure the market growth of this sector and competitiveness against alternative production techniques. One of the more promising routes able to achieve this is to aim for components with higher densities. READ MORE

  3. 3. Nanopowder as sintering aid for water-atomized ferrous powder

    Author : Swathi Kiranmayee Manchili; Chalmers University of Technology; []
    Keywords : master sintering curve; hydrogen; thermal analysis; reduction kinetics; nanopowder; water-atomized iron powder; surface oxide; water-atomized steel powder; sintering; compaction; dilatometry;

    Abstract : Press and sinter powder metallurgy steels are cost-effective solutions for structural applications. There is a constant drive for improvement in the density of these powder metallurgy steels to expand their usage in high-performance applications. READ MORE

  4. 4. Biomaterial Components Prepared by Titanium Powder Technology

    Author : Mikael Eriksson; Chalmers University of Technology; []
    Keywords : dental; coping; biomaterial; titanium-hydroxyapatite composite; crown; cold isostatic pressing; deformation; titanium powder; high velocity compaction; powder metallurgy;

    Abstract : The main objectives of this work were twofold: First, to determine if a pressed-powder method could be used to fabricate titanium dental copings, and to line out what problems or benefits this new method would have. Second, to test if high velocity compaction of titanium powder could be used to form biomaterial components such as copings or dental implants. READ MORE

  5. 5. Mechanical Modelling of Powder Compaction : Due to Corona is not possible to attend this defense in person, instead attend via this link:​

    Author : Hjalmar Staf; Per-Lennart Larsson; Göran Frenning; KTH; []

    Abstract : Cutting tool inserts, for instance used in steel machining, have the requirement to be toughand are therefore most often manufactured out of cemented carbides, using powdermetallurgy. Manufacturing components with powder metallurgy has its advantages in highproductivity and good net shape. READ MORE