Sökning: "hardness"

Visar resultat 21 - 25 av 362 uppsatser innehållade ordet hardness.

  1. 21. Utvärdering av korrelationen mellan sträckgräns och rockwell hårdhet för Ti-6Al-4V producerat med E-PBF

    Uppsats för yrkesexamina på grundnivå, Mittuniversitetet/Institutionen för ingenjörsvetenskap, matematik och ämnesdidaktik (2023-)

    Författare :Pontus Jansson; [2023]
    Nyckelord :Rockwell; hardness; yield strength; correlation; Rockwell; hårdhet; sträckgräns; korrelation;

    Sammanfattning : Detta projekt genomförs för att undersöka en möjlig metod vilket ger företaget AIM möjlighet att på egen hand testa kvaliteten på sina byggen med hjälp av korrelationen mellan materialets hårdhet samt dess sträckgräns. Där hårdheten kommer undersökas med Rockwell metoden och HRC skala samt sträckgränsen kommer undersökas med dragprov. LÄS MER

  3. 22. 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

  4. 23. Increased build rate by laser powder bed fusion of SSAB steel powder

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

    Författare :Colin Daly; [2023]
    Nyckelord :Additive manufacturing; Laser powder bed fusion; Build rate; Steel powder;

    Sammanfattning : SSAB has built a pilot gas atomization facility looking to expand their expertise of steel into the metal powder and additive manufacturing industry. Laser powder bed fusion is an additive manufacturing method that melts and fuse metal feedstock powder together layer by layer using a high intensity laser. LÄS MER

  5. 24. Challenges and Metallurgical Benefits of Implementing Metal Additive Manufacturing : A Case Study on Excavator Bucket Teeth Comparing Sand Casting with Additive Manufacturing

    Master-uppsats, Mälardalens universitet/Akademin för innovation, design och teknik

    Författare :Sam Thai; Michael Thunberg; [2023]
    Nyckelord :Challenges; Electron Beam Melting; Metal Additive Manufacturing; Metallurgy; Microstructure; Porosity; Qualification; Sand Casting;

    Sammanfattning : Introduction: Production systems go through changes over time and there are different factors driving the change. Metal Additive manufacturing (AM) could be a factor with industries that already havetaken interest in the manufacturing technique. LÄS MER

  7. 25. The Effects of Material Properties in Saw Chain Cutting Efficiency Tests : Investigating the repeatability of cutting efficiency tests

    Master-uppsats,

    Författare :Petter Ödvall; Jakob Ivarsson; [2023]
    Nyckelord :Alternative Material; Cutting Efficiency; Density; Hardness; Knots; Moisture Content; Pinus Sylvestris; Polyethylene; Regression Model; Saw Chain;

    Sammanfattning : Manufacturers of saw chains continuously strive to increase the performance of their products by reducing cutting times and minimising the energy consumption required for cutting. However, the evaluation process through testing is problematic as several uncontrollable factors impact the results. LÄS MER