Sökning: "pulvermetallurgi"

Visar resultat 1 - 5 av 7 uppsatser innehållade ordet pulvermetallurgi.

  1. 1. Simulation and Experimental Based Hardenability Evaluation of Chromium Alloyed Powder Metal Steels

    Master-uppsats, KTH/Materialvetenskap

    Författare :Atharva Kotasthane; [2023]
    Nyckelord :Hardenability; Martensite; Simulation Modelling; Microhardness; Microstructure; Härdbarhet; Martensit; Simuleringsmodellering; Mikrohårdhet; Mikrostruktur;

    Sammanfattning : Powder metallurgy is a branch of metal forming technology where metal powders are used to manufacture parts and components. It is a flexible and economical technique for manufacturing complicated shapes. This present work focuses on press and sinter technology and forms a part of Höganäs’s efforts of modelling hardenability through quenching. LÄS MER

  3. 2. Characterizing flowability of metal powders

    Kandidat-uppsats, KTH/Materialvetenskap

    Författare :David Correa Zapisotski; Martin Wallhed; [2019]
    Nyckelord :Powder Metallurgy;

    Sammanfattning : Powder metallurgy is a growing field with much potential. The core purpose and problem in this work is attempting to describe and understand what and how metal powder properties impact powder flowability. LÄS MER

  4. 3. Modelling the influence of porosity on fatigue strength of sintered steels

    Uppsats för yrkesexamina på avancerad nivå, Uppsala universitet/Strukturkemi

    Författare :Emily Hall; [2019]
    Nyckelord :Fatigue; Powder metallurgy; PM; sintered steels; fracture mechanics; porosity; metal powders; fatigue strength; fatigue limit; utmattning; pulvermetallurgi; metallpulver; utmattningsgräns; brottmekanik; porositet; sintring;

    Sammanfattning : The pores in pressed and sintered components constitute weak points in the material since the stress concentration is larger than the nominal stress there. Therefore, fatigue cracks initiate at the pores. Specifically, it can be assumed that the fatigue cracks initiate at the largest pore in the stressed volume. LÄS MER

  5. 4. Property Optimization of PM-gearing

    Kandidat-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Marcus Söderberg Jansson; Oskar Lundkvist; [2017]
    Nyckelord :Gear; Powder Metallurgy; Property optimization; Egenskapsoptimering; Kugghjul; Pulvermetallurgi;

    Sammanfattning : The purpose of this bachelor thesis is to design and optimize a powder metal gear through FEM-analyzes. The moment of inertia and weight of the gear shall be reduced at the same time as the demands on tension and bending stiffness are met. LÄS MER

  7. 5. A model-based design approach to redesign a crankshaft for powder metal manufacturing

    Master-uppsats, KTH/Maskinkonstruktion (Inst.)

    Författare :Vasileios Angelopoulos; [2015]
    Nyckelord :Crankshaft; balancing; modularization; Powder Metallurgy; Vevaxel; balansering; modularisering; pulvermetallurgi;

    Sammanfattning : A crankshaft is a component which is used to convert a reciprocating movement into rotating or vice versa. Through the past years classical manufacturing techniques did not leave space for a new approach regarding manufacturing this component. LÄS MER