Sökning: "HPDC"

Visar resultat 1 - 5 av 6 avhandlingar innehållade ordet HPDC.

  1. 1. Investigations on the Formation of Defect Bands in Semi-Solid High Pressure Die Cast Aluminium-Silicon Alloys

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Madeleine Law; Pär Jönsson; Christopher Hulme-Smith; Taishi Matsushita; Jessica Elfsberg; [2020]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Semi-Solid Metals; SSM; Al-Si Alloys; Defect bands; HPDC; Semisolida metaller; SSM; Al-Si-Alloys; defektband; HPDC; Metallurgical process science; Metallurgisk processvetenskap;

    Sammanfattning : High-pressure die casting of semi-solid aluminium-silicon alloys is used in the automotive industry to manufacture components, like housings, brackets, and bars. It is commonly known that during high-pressure die casting, defect bands may be created that follow the contour of the component surface. These bands consist mainly of a eutectic phase. LÄS MER

  2. 2. Atmospheric corrosion of the MgAl alloy AM50 in rheocast and high pressure diecast conditions - Influence of Microstructure, CO2 and NaCl

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Mehrdad Shahabi Navid; [2014]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; SEM; MgAl alloy; Atmospheric corrosion; High pressure diecast; XPS; XRD; Rheocast;

    Sammanfattning : The NaCl-induced atmospheric corrosion of the high pressure diecast (HPDC) MgAl alloy AM50 was investigated. Commercially pure (CP) Mg was used as the reference. Two levels of salt; i.e. LÄS MER

  3. 3. The effect of microstructure and temperature on the atmospheric corrosion of Mg-Al alloys

    Detta är en avhandling från Stockholm : KTH Royal Institute of Technology

    Författare :Mohsen Esmaily; [2013]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Atmospheric corrosion; microstructure; temperature; corrosion product; magnesium;

    Sammanfattning : The NaCl-induced atmospheric corrosion behavior of the Mg-Al alloy AM50 produced by rheo-casting (RC) and high pressure die casting (HPDC) techniques was studied in the laboratory. The exposures were performed at 95% RH in the absence and presence of 400 ppm CO2 at 22, 4 and -4ºC. In parallel, 99.97%Mg was investigated as reference. LÄS MER

  4. 4. Optimization product parts in high pressure die casting process

    Detta är en avhandling från Västerås : Mälardalen University

    Författare :Mohammad Sadeghi; Rebei Bel-fdhila; Dan Loyd; [2015]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; industriell ekonomi och organisation; Industrial Economics and Organisations;

    Sammanfattning : This thesis describes optimization of die temperature in high pressure die-casting (HPDC) of A380 alloy by experimental observation and numerical simulation with the use of statistical tools. The goal of this research is to determine the optimum die temperature to minimize incidence of these defects and thus maximize production of parts without defects. LÄS MER

  5. 5. High performing cast aluminium-silicon alloys

    Detta är en avhandling från Jönköping : Jönköping University, School of Engineering

    Författare :Martin Riestra; Salem Seifeddine; Ehsan Ghassemali; Jessica Elfsberg; [2017]
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Aluminium cast alloys; melt quality; eutectic modification; grain refinement; microstructure; tensile properties;

    Sammanfattning : The need to produce lighter components due to environmental aspects and the development of electrical vehicles represents an opportunity for cast aluminium-silicon alloys. With high specific strength, good castability, high corrosion resistance and recyclability, these alloys offer an attractive combination of properties as an alternative to steel, cast iron and titanium-based components in certain applications. LÄS MER