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In metalworking and jewelry making, casting is a process in which a liquid metal is delivered into a mold (usually by a crucible) that contains a negative impression (i.e., a three-dimensional negative image) of the intended shape. The metal is poured into the mold through a hollow channel called a sprue.
Learn about the different types, characteristics and uses of aluminium alloys, which are alloys in which aluminium is the predominant metal. Compare aluminium alloys with steel and other materials in terms of strength, weight, corrosion resistance and manufacturing techniques.
Semi-solid metal casting (SSM) is a process that uses non-ferrous metals in a semi-solid state to produce near net shape parts. It combines the advantages of casting and forging, and has various techniques such as thixocasting, rheocasting, thixomolding, and SIMA.
After some time, graphite refractory in contact with aluminium will react to create aluminum carbides (harder and more detrimental inclusions). In aluminium alloy containing magnesium , the magnesium reacts with some refractories to create rather big and hard inclusions similar to spinels.
Direct Chill casting is a method for the fabrication of cylindrical or rectangular solid ingots from non-ferrous metals, especially Aluminum, Copper, Magnesium and their alloys. The original ingots are usually further processed by other methods (rolling, forging, etc.). More than half of global aluminum production uses the Direct Chill casting ...
Casting is the primary use of aluminum-silicon alloys, but they can also be utilized in rapid solidification processes and powder metallurgy. Alloys used by powder metallurgy, rather than casting, may contain even more silicon, up to 50%. [1] Silumin has a high resistance to corrosion, making it useful in humid environments.
Aluminium (or aluminum in North American English) is a chemical element; it has symbol Al and atomic number 13. Aluminium has a density lower than that of other common metals, about one-third that of steel. It has a great affinity towards oxygen, forming a protective layer of oxide on the surface when exposed to air.
Evaporative-pattern casting is a type of casting process that uses a pattern made from a material that will evaporate when the molten metal is poured into the molding cavity. The most common evaporative-pattern material used is polystyrene foam. [1] The two major evaporative-pattern casting processes are: [1] Lost-foam casting; Full-mold casting