Metal Casting is one of the oldest materials shaping methods known. Casting means pouring molten metal into a mold with a cavity of the shape to be made and allowing it to solidify. When solidified the desired metal object is taken out from the mold either by breaking the mold or taking the mold apart. The solidified object is called the casting. By this process intricate parts can be given strength and rigidity frequently not obtainable by any other manufacturing process. The mold into which th