Sökning: "tribology"

Visar resultat 21 - 25 av 81 uppsatser innehållade ordet tribology.

  1. 21. Evaluation of Refined Tribological Properties of Diamond Coated Cutting Tools Used in Machining of High-Strength Aluminum Alloys : Master thesis report regarding refined frictional & wear behavior of uncoated & CVD diamond coated WC-Co cemented carbide cutting tools used for machining of Al 7xxx alloys.

    Master-uppsats, Karlstads universitet/Fakulteten för hälsa, natur- och teknikvetenskap (from 2013)

    Författare :Christian Hultman; [2022]
    Nyckelord :tribology; machining; metal cutting; turning; milling; friction; wear; material transfer; surface technology; tribologi; skärande bearbetning; svarvning; fräsning; friktion; förslitning; nötning; materialöverföring; ytteknologi;

    Sammanfattning : High strength aluminum alloys have for a long time been a popular material utilized in the automotive and aerospace sector due to coveted mechanical properties in terms of weight, strength, fatigue, and corrosion. However, tribological mechanisms such as tribo-film formation and material transfer during the metal cutting manufacturing process of aluminum impose significant reduction of machining and tool-life performance. LÄS MER

  3. 22. Tribological behaviour of CVD diamondcoated tools during machining of highstrength aluminum alloy : Master thesis project on tribological behavior of super hard materials: chemicalvapor deposition diamond (CVD) coated cutting tools and polycrystalline diamond(PCD) cutting tools used in machining of high strength aluminium alloy

    Master-uppsats, Karlstads universitet/Institutionen för ingenjörsvetenskap och fysik (from 2013)

    Författare :Oskar Lundquist; [2022]
    Nyckelord :CVD diamond coating; CVD; Aluminum machining; Tool coatings; PCD; diamond coating; diamond; Tribology; Material Science.;

    Sammanfattning : Machining of Aluminum can be complicated due to large amounts of adhesion and diffusion of the aluminum onto the cutting tool, causing effects such as built-up layers and built-up edges. This leads to poor surface finishes and can significantly affect the tool life. LÄS MER

  4. 23. Tribological Performance of Ferritic Nitrocarburizing (FNC) Treated Automotive Brake Discs

    Master-uppsats, Lunds universitet/Industriell Produktion

    Författare :Chandan Kumar Ravindra Reddy; Shanmukharaj Jayasankar; [2021]
    Nyckelord :Tribology; Gray Cast Iron; Ferritic NitroCarburized; Coefficient of Friction; Wear.; Technology and Engineering;

    Sammanfattning : The increase of electric vehicles in the market demands the automotive industries to search for better brake disc material with high wear resistance, corrosion resistance, and longer service life. The GCI brake discs, a traditionally used material that has less wear and corrosion resistance. LÄS MER

  5. 24. Macro composites for crushing - additive manufacturing of hard phase : Development and testing of macro composites for crushing purposes

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

    Författare :Maria Wojtowicz; [2021]
    Nyckelord :stone; rock; crushing; tribology; jaw crusher; selective laser melting; SLM; additive manufacturing; steel; macro composite; bronze;

    Sammanfattning : During this master thesis a crushing material composite was developed in order to determine if a specific design consisting of a pointy hard phase with a ductile phase in between can reduce the load needed to crush stone and therefor decrease the energy consumption during stone crushing. The steel hard phase (ASP 2012) was printed using an additive manufacturing method called selective laser melting (SLM). LÄS MER

  7. 25. Sustainable polymer-tribology : Developing novel multiscale thermoplastic composites using recycled high-performance fibers

    Master-uppsats, Luleå tekniska universitet/Maskinelement

    Författare :Alejandra Marcela Ventura Cervellón; [2021]
    Nyckelord :Tribology; Carbon Fibers; Recycled Carbon Fibers; Circular Economy; Composite; UHMWPE; Ultra High Molecular Weight Polyethylene;

    Sammanfattning : The transition to a Circular Economy scheme that enables a more efficient usage of the resources is one of the most pressing needs in our society. From the industrial perspective this has been translated into new design philosophies and the search for more efficient systems. LÄS MER