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  • 1
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Materials science forum Vol. 519-521 (July 2006), p. 1835-1840 
    ISSN: 1662-9752
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes: The needs for high-strength and lightweight structural materials have increased inautomotive and aerospace structural applications. Semi-solid processed light alloys have satisfiedthese requirements because of processing advantages and significant weight reduction.Conventional semi-solid casting methods have got a wide variety of problems and difficulties. Thecup-cast method that has been just developed is a novel process that make semi-solid casting aseasy as pouring the water from a pitcher into a drinking glass, and avoid all the problem anddifficulties of other semi-solid casting processes. Cup cast method is based on the heat and masstransfer and spherical equiaxed particles with controlling the nucleation and growth of solidparticles were produced. In this study the different factor of this method was optimized bymicro-structural investigation on the Al-A356 alloy. Pouring height and temperature, duration ofpouring, and cup coating had played important roles in this method
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 116-117 (Oct. 2006), p. 358-361 
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: Semi-Solid metal (SSM) processing is now considered a commercially successfulmanufacturing route producing millions of near net shape parts per annum for the automotiveindustry. Although semi-solid process is currently widely used as a manufacturing process whichproduces near net-shape metal component, the processes those used for the preparation ofsemi-solid slurry still take a great deal of time, energy and money. Cup cast method – recentlydeveloped by the authors – is able to make semi-solid slurry preparation as easy as pouring waterfrom a pitcher into drinking glass. In this method globular solid particles are prepared by controllingthe turbulence and heat distribution in the melt through pouring instead of applying certain externalstirring forces, in other common method. In the current study, cup cast method applied to Al-A356alloy using simple cylinder. Vital factors of this method were optimized by investigatingmicro-structures
    Type of Medium: Electronic Resource
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  • 3
    Electronic Resource
    Electronic Resource
    s.l. ; Stafa-Zurich, Switzerland
    Solid state phenomena Vol. 116-117 (Oct. 2006), p. 569-572 
    ISSN: 1662-9779
    Source: Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
    Topics: Physics
    Notes: Cup-cast method is a new method deals with semi-solid slurry preparation recentlydeveloped by the authors. In this method, suspension of globular solid particles in molten metal isprepared by controlling the nucleation and growth of solid-particles through the simplest andquickest techniques. In this method, heat transfer phenomenon plays an important role in governingthe shape, size, and fraction of solid particles. In the current study, a heat transfer model wasproposed and applied to Al-A356 alloy semi-solid slurry preparation. The heat transfer model wasbased on heat balance consideration between cup and slurry and it was in a good agreement withexperimental results
    Type of Medium: Electronic Resource
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