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GPCL | Sand Casting |
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Sand Casting is the process of production of objects by pouring molten material in to a cavity called a mold which is the negative of the object, and allowing it to cool and solidify. Sand casting is a means of producing rough metal castings that are further refined by any or all of hammer peening, shot peening, polishing, forging, plating, rough grinding, machine grinding or machining. Sand castings not further worked by polishing or peening are readily recognized by the sand-like texture imparted by the mold. As the accuracy of the casting is limited by imperfections in the mold making process there will be extra material to be removed by grinding or machining, more than is required by other more accurate casting processes.
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