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Visar resultat 1 - 5 av 261 uppsatser som matchar ovanstående sökkriterier.

  1. 1. Increasing the diodicity of ceramic Tesla valves by exploiting the design freedom of additive manufacturing : A study in design optimizations of Tesla valves for ceramic 3D printing

    Master-uppsats, Uppsala universitet/Institutionen för materialvetenskap

    Författare :Udit Sharma; [2024]
    Nyckelord :additive; manufacturing; Tesla; valve; ceramic; 3D; printing;

    Sammanfattning : The work presented in this thesis was conducted at Uppsala University and at Fraunhofer IKTS, Dresden. The thesis aims to study design optimizations for increasing the diodicity and thereby performance of a Tesla valve, a type of “no moving parts” (NMP) valve, through design freedoms offered by ceramic additive manufacturing. LÄS MER

  3. 2. Effektivisering av SAQ 5.0 för SME:s : Att möta utmaningarna inför SAQ 5.0 hos Företag X och svenska SME:s

    Kandidat-uppsats, Jönköping University/Tekniska Högskolan

    Författare :Alexander Aronsson; [2024]
    Nyckelord :Global changes; Sustainability regulations; Suppliers to the automotive industry; Documentation in sustainability; Policies and certifications; Global Automotive Sustainability Guiding Principles; Drive Sustainability; Self-Assessment Questionnaire SAQ ; SAQ 5.0; SAQ 4.0; Environmental and quality management systems; Gap analysis; SME Small and Medium-sized Enterprises ; Hållbarhetsregleringar; Leverantörer till fordonsindustrin; Dokumentering inom hållbarhet; Policys och certifieringar; Miljö- och kvalitetsledningssystem; Gap-analys; SME Små och medelstora företag ; SAQ 4.0; SAQ 5.0;

    Sammanfattning : The current global changes and regulations in sustainability have a direct impact on suppliers to the automotive industry. Therefore, it is crucial for suppliers to the automotive industry to proactively monitor developments to avoid risking their competitiveness. LÄS MER

  4. 3. Effect of temperature on early stage adhesion during TiAlN sliding against Inconel 718 and Stainless steel 316L : High temperature tribology

    Master-uppsats, Luleå tekniska universitet/Institutionen för teknikvetenskap och matematik

    Författare :Ahsan Ali; [2023]
    Nyckelord :High temperature tribology; Early-stage adhesion; Adhesive wear; Friction; Wear resistant coatings; Physical vapour deposition PVD coatings; TiAlN; Tungsten carbide WC Co ; Difficult to machine super alloys; Inconel 718; Stainless steel 316L; High-performance materials; Abrasion; Oxidation; Chipping; Ploughing; Characterization;

    Sammanfattning : High-performance materials such as stainless steels and nickel based super alloys are widely used in demanding applications where high mechanical and thermal properties are required. The applications of super alloys are mainly found in jet engines, power plants and gas turbines demanding high fatigue strength, corrosion and oxidation resistance as well as wear resistant properties. LÄS MER

  5. 4. Jämförelse av torr bearbetning och minimalsmörjningseffekter på fräsning av austenitiskt rostfritt stål

    M1-uppsats, Högskolan i Gävle/Maskinteknik

    Författare :Adam Norell; Darav Hajo; [2023]
    Nyckelord :MQL; milling; stainless steel; tool wear; MQL; fräsning; rostfritt stål; verktygsförslitning;

    Sammanfattning : Fräsning och annan intermittent skärande bearbetning ger upphov till termisk utmattning av skärverktyg. Problemet med termiska sprickor blir större vid bearbetning av värmehållfasta material som austenitiskt rostfritt stål eftersom värmeväxlingarna i skärverktyget blir mer extrema. LÄS MER

  7. 5. Life cycle assessment of metal laser powder bed fusion : A deep dive into the significance of system boundary expansion and improvement potential

    Master-uppsats, Linköpings universitet/Industriell miljöteknik

    Författare :Christian Rotter; Erik Fagerberg; [2023]
    Nyckelord :additive manufacturing; life cycle assessment; powder bed fusion; system boundaries; metal laser powder bed fusion; environmental impact; global warming potential;

    Sammanfattning : Metal additive manufacturing (MAM) is a manufacturing technology experiencing a rapid expansion rate. Metal laser powder bed fusion (ML-PBF) is among the most popular techniques in this field. The environmental implications of it are often discussed in literature and compared to conventional manufacturing. LÄS MER