Sökning: "powder metallurgy PM"

Visar resultat 1 - 5 av 28 avhandlingar innehållade orden powder metallurgy PM.

  1. 1. A comparative cost analysis of conventional wrought steel and powder metallurgy (PM) gear manufacturing technologies

    Författare :Babak Kianian; Industriell Produktion; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Gear manufacturing; Manufacturing cost analysis; Powder metallurgy PM ; Press and sintering P S ; Wrought steel conventional gear manufacturing; Decision support system DSS ; Sustainability; Sustainable production SP ; Automotive Industry;

    Sammanfattning : The transportation industry landscape is going through a massive transformation due to trends such as autonomous and electrified vehicles. The electrification trend has already started to display its ample influence on the automotive industry. LÄS MER

  2. 2. Key Aspects of Sintering Powder Metallurgy Steel Prealloyed with Chromium and Manganese

    Författare :Ola Bergman; Chalmers University of Technology; []
    Nyckelord :Manganese; Prealloyed; Sintering; Mechanical properties; Chromium; Spinel oxide; Powder metallurgy; PM steel; Oxide reduction; Residual oxides; Atmosphere;

    Sammanfattning : The powder metallurgy (PM) process is a cost efficient near net-shape technology suitable for sustainable manufacturing of structural steel components. A drawback with the PM technology is the difficulty to use oxidation sensitive alloying elements, such as Cr and Mn. LÄS MER

  3. 3. Novel approaches for achieving full density powder metallurgy steels

    Författare :Maheswaran Vattur Sundaram; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Cr- and Mo-alloyed PM steels; vacuum sintering; high density; full density; hot isostatic pressing.; cold isostatic pressing; liquid phase sintering; master alloy; double pressing-double sintering; powder metallurgy steels; sintering; water atomised powder;

    Sammanfattning : Powder metallurgy (PM) is one of the most resource-efficient methods for manufacturing structural components with complex shapes. The utilisation of the metal powder to shape the components allows to minimise material waste and increase energy efficiency. LÄS MER

  4. 4. Surface Composition and Microstructure Control during Pressureless Forming and Sintering of Ferrous Powder Metallurgy Materials

    Författare :Sílvia Magalhães; Chalmers University of Technology; []
    Nyckelord :metal injection moulding MIM ; surface reactions; SEM; MS; supersolidus liquid phase sintering; TGA; high speed steel HSS ; liquid phase sintering; starch consolidation SC ; XPS; ferrous powder; powder metallurgy PM ; degassing;

    Sammanfattning : This study addresses key issues related to different stages of ferrous PM materials processing. Several analytical tools are applied in the study of surface composition and microstructure control in the processing of ferrous powder including forming, degassing and sintering stages. LÄS MER

  5. 5. Net-Shape Consolidation of Water-Atomised and Gas-Atomised Steel Powder Towards Full Density

    Författare :Anok Babu Nagaram; Chalmers University of Technology; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; high temperature sintering; Prealloyed with Cr PM steel; hot isostatic pressing; cold isostatic pressing; high density; Powder metallurgy; PM steel; sintering atmosphere;

    Sammanfattning : Powder metallurgy (PM) provides resource- and cost-efficient routes to create near-net shape products compared to conventional metal fabrication techniques. To improve the mechanical performance of PM steels, it is a prerequisite to enhance the density of the material. LÄS MER