Sökning: "Jorge Santos"

Hittade 4 avhandlingar innehållade orden Jorge Santos.

  1. 1. Al-7Si-Mg semi-solid castings – microstructure and mechanical properties

    Författare :Jorge Santos; Anders E.W. Jarfors; Jönköping University; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rheometal™ process; semi‐solid casting; aluminium alloys; grain refinement; segregation; intermetallic phases; heat treatment; mechanical properties;

    Sammanfattning : The vehicles industry is facing increasing demands for fuel efficiency and cost reduction due to environmental legislation, sustainability and customer demands. Therefore, there is a great need to develop and produce lightweight components by using materials and processes that offer higher specific strength and/or design optimization. LÄS MER

  3. 2. Semi-solid Al-7Si-Mg castings – Microstructure and mechanical properties

    Författare :Jorge Santos; Anders E.W. Jarfors; Arne Dahle; Hongbiao Dong; Jönköping University; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Rheometal™ process; semi-solid casting; aluminium alloys; dissolution; grain refinement; segregation; intermetallic phases; heat treatment; mechanical properties; fatigue properties; Rheometal™ processen; semi-solid gjutgarna; aluminiumlegeringar; upplösning; kornförfining; segregering; intermetalliska faser; värmebehandling; mekaniska egenskaper; utmattningsegenskaper;

    Sammanfattning : The use of lightweight parts by the vehicle industry produces immediate benefits on the reduction of emissions because less energy is consumed during the production, service, and recycle stages of a product life cycle. Therefore, the development of processes that allow high design freedom for topology optimisation and materials with high specific strength is a great need. LÄS MER

  4. 3. Feedback Control of Robotic Friction Stir Welding

    Författare :Jeroen De Backer; Gunnar Bolmsjö; Anna-Karin Christiansson; Jorge Dos Santos; Högskolan Väst; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction stir welding; Process automation; Temperature control; Force control; Deflection model; Robotics; Svetsning; FSW; processtyrning; temperaturstyrning; robot; utböjning; kraftstyrning; Industriell arbetsvetenskap; Industrial engineering; Manufacturing and materials engineering; Produktions- och materialteknik;

    Sammanfattning : The Friction Stir Welding (FSW) process has been under constant developmentsince its invention, more than 20 years ago. Whereas most industrial applicationsuse a gantry machine to weld linear joints, there are applications which consistof complex three-dimensional joints, requiring more degrees of freedom fromthe machines. LÄS MER

  5. 4. Robot system for flexible 3D friction stir welding

    Författare :Mikael Soron; Ivan Kalaykov; Jorge F. dos Santos; Örebro universitet; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Friction Stir Welding; robotics; TECHNOLOGY; TEKNIKVETENSKAP; Automatic control; Reglerteknik; Reglerteknik; Automatic Control;

    Sammanfattning : Applying Friction Stir Welding (FSW) on complex joint geometries requires not only a machine with 3-dimesional work space capacity, but also a sound definition of the part geometry as well as knowledge about the process. Having a joining process, such as FSW, with great characteristics from both seam quality and environmental perspective, but yet only a minor presence in the manufacturing industry may be related to flexibility and cost issues. LÄS MER