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Knowing the Casting Process
2016-03-23

Generally speaking, die casting is a process that forcing molten metal under high pressure into a steel mold to produce Precision Casting . Two hardened tool steel dies are used to create the mold cavity which has been machined into shape and work correspondingly to an injection mold throughout the action. The metal hardens quickly after the injection and then the part gets cast out from the mold. Die casting parts are characterized by their distinct, smooth or textured shells and dimensional regularly.

Basically, the steel molds which called dies are used in this process to enforce molten metal hooked on with tremendously high pressure. Die casting is a resourceful technique that allows for a range of stages of intricacy in manufacturing from steel sinks to tiny toy cars. Meanwhile, it still maintains complete exactitude to generate an unblemished end product. And according to the techniques used in the process, it matters a lot for the exactness.

Commonly, there are four steps involved in die casting and each phase must completed thoroughly before getting on to the next phase. And the die worker must be certain that the die casting machine is at the required temperature. If the die is cold when the molten metal is injected, failure may occur, because it will solidify too quickly without conforming to the correct shape. Heating will take some time depending on the size of the designed cast and only after the die reaches the right temperature the casting should begin.

The first step in die casting is spray the mold with lubricant. Lubricating helps to regulate the temperature inside of the die, ant the same time it also allows help in trouble-free removal of the cast. Then, the next step is to inject the molten metal into the die and the metal is inserted at an enormously high pressure, thereby it allows the metal to conform to the fixed figure of the die, devoid of the risks of puffiness or air pockets inside the product. After that the mold is allowed to cool and thereby the metal gets solidified. It differs according to the level of the stage. The mold is immersed or sprayed with cold water to ease the casting turn out solid but, this only happens in some cases. Still the high-pressure is maintained inside the mold so that the metal will not change properties. Finally, open the die and remove the solid cast.