Sökning: "WC-Co"

Visar resultat 16 - 20 av 24 uppsatser innehållade ordet WC-Co.

  1. 16. Alternative binder phases for WC cemented carbides

    Master-uppsats, KTH/Materialvetenskap

    Författare :Chunxin Liu; [2014]
    Nyckelord :Binder phase; cemented carbides; WC; Co;

    Sammanfattning : WC cemented carbides are composites consisting of WC and a binder phase. WC/Co is widely used as cutting tools due to its excellent combination of hardness and toughness. This thesis work was performed at the R&D department of Sandvik Coromant and aimed to find the alternative binder phase to substitute cobalt. LÄS MER

  3. 17. Protective coatings for Al press tools used in automotive industry

    Magister-uppsats, Högskolan Väst/Avd för tillverkningsprocesser

    Författare :Ruoyo Tan; [2014]
    Nyckelord :Protective coating; HVAF; APS; Aluminium substrate; Wear resistance;

    Sammanfattning : The application of the thermally sprayed WC-Co and Cr 3C2-NiCr coatings have been widely used in industry for its superior sliding, abrasive and erosive wear properties. The Al2O3 coating possessing high hardness can be utilized to improve the wear resistance of the metallic surface. LÄS MER

  4. 18. Tool wear in titanium machining

    Uppsats för yrkesexamina på avancerad nivå, Institutionen för kemi - Ångström

    Författare :Stina Odelros; [2012]
    Nyckelord :Tool wear; titanium machining; WC Co cutting tool; tool wear prediction; cutting temperature;

    Sammanfattning : The present work was performed at AB Sandvik Coromant as a part in improving the knowledge and understanding about wear of uncoated WC/Co cutting tools during turning of titanium alloy Ti-6Al-4V. When machining titanium alloys, or any other material, wear of the cutting tools has a huge impact on the ability to shape the material as well as the manufacturing cost of the finished product. LÄS MER

  5. 19. Evaluation of HVAF sprayed STR coatings

    Uppsats för yrkesexamina på avancerad nivå, Tillämpad materialvetenskap

    Författare :Robin Elo; [2012]
    Nyckelord :HVAF; coating; Cr3C2-NiCr; WC-Co; WC-CrC-Ni;

    Sammanfattning : The Seamless Stressometer® roll (Seamless STR) is used to measure the flatness of aluminum and steel strip when there is an extreme demand on the surface finish. To protect the roll and strip, the roll is coated with two layers deposited by high velocity oxygen fueled spraying (HVOF), Cr-Ni(Si,B) closest to the roll and WC-Co on top. LÄS MER

  7. 20. Development of a quantitative method for grain size measurement using EBSD : and Comparison of WC-Co materials produced with different production methods

    Master-uppsats, KTH/Materialvetenskap

    Författare :Fredrik Josefsson; [2012]
    Nyckelord :EBSD; WC-Co; Cemented carbide; Grain size measurement; quantitative;

    Sammanfattning : High performance cutting tools are essential in many industry areas. Cemented carbides (WC-Co) are common materials used for these applications due to the excellent mechanical properties. The mechanical properties of the material are manly dependent on the WC grain size distribution. LÄS MER