Sökning: "Titanium alloys"

Visar resultat 1 - 5 av 27 uppsatser innehållade orden Titanium alloys.

  1. 1. Modelling study of Ti64 and Ti6242 as a first approach to understand their additive manufacturing behaviors

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

    Författare :Clara De Monte; [2023]
    Nyckelord :Titanium alloy; CALPHAD; Additive manufacturing;

    Sammanfattning : Aerospace and aeronautics industries push forward the research to improve constantly the quality, safety, and cost of flights. The main ways of improving products are to create lighter and better components, under a highly controlled processing from the research and development to the production at a big scale. LÄS MER

  3. 2. Effect of dwell (hold) time on high temperature fatigue crack growth of AM components

    Master-uppsats, KTH/Lättkonstruktioner, marina system, flyg- och rymdteknik, rörelsemekanik

    Författare :Hemanth Venkatesan; [2023]
    Nyckelord :Dwell time; creep; fatigue; IN718; LPBF; hold time; sustained loading; Uppehållstid; krypning; utmattning; IN718; LPBF; hålltid; ihållande belastning;

    Sammanfattning : GKN Aerospace AB, Sweden (GAS) is one of the leading companies taking up the charge in manufacturing components using Additive Manufacturing(ed) (AM) techniques in the aerospace sector. They are a hub of engineering and they are a supplier of engine and engine components to the world’s leading aero-engine manufacturers, and airframes to civil and military aircraft manufacturers. LÄS MER

  4. 3. Study of Porosity in Uncoated Cemented Carbide Tools During Titanium Alloy Machining.

    Master-uppsats, Lunds universitet/Industriell Produktion

    Författare :Cornelis Botermans; [2023]
    Nyckelord :Technology and Engineering;

    Sammanfattning : During high speed machining of titanium alloys both the tool and workpiece material diffuse into one another affecting the surface integrity of the cutting tool edge and leading to fracture. One proposed mechanism by which the tool integrity is compromised results from the possible formation of porosity in to subsurface of the tool substrate close to the tool cutting edge. LÄS MER

  5. 4. Development of Nickel-Titanium Shape Memory Alloys using Electron Beam Melting

    Master-uppsats, KTH/Materialvetenskap

    Författare :Georgios Manolios; [2022]
    Nyckelord :;

    Sammanfattning : In this project, the effect of electron beam melting on the behavior of NiTi shape memory alloyshas been studied, with focus on the effects of recycling powder within the process and theprocess parameters used and how “smoking” is affected. Flowability, powder characteristicsand chemical composition have been evaluated using imaging analysis techniques, Hallflowmeter measurements, FT4 powder rheometry and energy dispersive X-ray spectroscopyboth in virgin powder and in recycled powders. LÄS MER

  7. 5. Experimental Study and Modelling of Heat Transfer in Milling of Titanium Alloys

    Master-uppsats, Lunds universitet/Industriell Produktion

    Författare :Belén Cámara Herrero; [2022]
    Nyckelord :Titanium alloys; heat transfer; milling; modelling; thermal simulation; Technology and Engineering;

    Sammanfattning : The purpose of this project is studying heat transfer to indexable cutting tools during milling of a selection of titanium alloys, relevant to the industry. To achieve this goal, both experimental and theoretical models were contemplated to formulate the current thesis. LÄS MER