Sökning: "PVD coatings"

Visar resultat 1 - 5 av 10 uppsatser innehållade orden PVD coatings.

  1. 1. Modeling and Analysis of the Shot Peening Process : a Study of the Residual Stresses in an Insert using the Finite Element Method

    Magister-uppsats, Linnéuniversitetet/Institutionen för maskinteknik (MT)

    Författare :Hamid Torkaman; [2018]
    Nyckelord :Shot peening; Residual stresses; Cutting tool inserts; Post-coating treatment; Coated cemented carbide;

    Sammanfattning : Cutting tool inserts are often coated with thin layers either through chemical vapor deposition (CVD) or physical vapor deposition (PVD) processes. In order to have a better wear resistance cutting tools are mostly subjected to post-coating treatment processes. LÄS MER

  2. 2. Radar Transparency and Paint Compatibility

    Master-uppsats, KTH/Skolan för kemivetenskap (CHE)

    Författare :Jennie Lodén; [2017]
    Nyckelord :Automotive; Radar; 77 GHz; dielectric; permittivity;

    Sammanfattning : This study focus on trying to understand what factors regarding bumper materials and coatings affect the radar transparency at 77 GHz. Dielectric spectroscopy was done at 25 unique samples, consisting of various plastic substrates, primers, basecoats and clearcoats with the Free-spaced method in the 60-90 GHz region. LÄS MER

  3. 3. Metod för mätning av restspänningar i PVD-beläggningar på tunna substrat

    Kandidat-uppsats, Uppsala universitet/Institutionen för teknikvetenskaper; Uppsala universitet/Institutionen för teknikvetenskaper; Uppsala universitet/Institutionen för teknikvetenskaper; Uppsala universitet/Institutionen för teknikvetenskaper; Uppsala universitet/Institutionen för teknikvetenskaper; Uppsala universitet/Institutionen för teknikvetenskaper; Uppsala universitet/Institutionen för teknikvetenskaper

    Författare :Philip Eriksson; Emily Hall; Felix Jacobson; Ebba Saikoff; Johanna Söderberg; Pontus Theill; Erika Åkerfeldt; [2016]
    Nyckelord :Residual stress measurement; PVD coatings; thin substrates; foil; Mätning av restspänningar; PVD skikt; tunna substrat; folie;

    Sammanfattning : The aim of this project was to, based on a given idea, develop and evaluate a method for measuring residual stress in thin PVD coatings.AlCrN was deposited, by PVD, on thin circular samples of stainless steel foil and the radius of the emerged curvature was measured using an optical profilometer. LÄS MER

  4. 4. Optimizing Transmission Kikuchi Diffraction for Analysing Grain Size and Orientation of Nanocrystalline Coatings

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Tillämpad materialvetenskap

    Författare :Axel Tryblom; [2015]
    Nyckelord :TKD; t-EBSD; Kikuchi diffraction; coating; nanocrystalline; sample preparation; in situ lift-out; DualBeam; precision mechanical polishing; SEM;

    Sammanfattning : In order to increase efficiency and lifetime of cutting tools it is typical to apply thin coatings by physical or chemical vapour deposition. Applying coatings on cutting tools has shown an increase in both efficiency and lifetime and are of large interest in further development. LÄS MER

  5. 5. Wear mechanisms in austenitic stainless steel drilling : A comprehensive wear study

    Master-uppsats, KTH/Materialteknologi

    Författare :Alexander Dahlström; [2015]
    Nyckelord :Austenitic Stainless Steel; Cemented Carbide; Drilling; Wear mechanisms; Adhesive wear; Margin; Cracks.;

    Sammanfattning : This thesis is meant to serve as part of a competence platform for future product development projects at Sandvik Coromant AB, Solid Round Tools Department, Västberga, Sweden. The project objective is to gain generic knowledge of the wear mechanisms that restrict tool lifetime when drilling austenitic stainless steel. LÄS MER