Wednesday, August 28, 2013

Steps of the Die Casting Process

The die casting process may seem complicated, but it is surprisingly simple!  In fact, there are only four main steps involved in the die casting process: die preparation, filling, ejection, and shakeout.  We will outline each step so you fully understand the die casting process!

Die Preparation

Die preparation begins with misting the mold with a specialized lubricant. This preparation both assists in regulating the temperature of the die in addition to making the cavity easier to remove when the time comes.


Next, the die is closed before the liquid metal is added to the die amidst extremely high pressure. After the cavity is filled, the amount of pressure is regulated while the casting solidification happens.


Ejection begins when the dies open.  At this point, the shot, or a group of several castings, is removed via ejector pins.


The final step in the die casting process is the shakeout.  This step includes detaching the scrap from the shot.  The shakeout is usually executed by utilizing a trimming die with a press.  However, that is not the only method to complete this process.  Another way to execute the shakeout process includes sawing and grinding.  If you are in need of a method that involves less manual labor, then your best option would be to tumble the shots.  

You now know the basic steps involved in the die casting process!  Though there are only four main steps in the process; it is crucial that these steps are done correctly to result in the highest quality possible for the finished product.  For example, utilizing high-pressure injection results in the die being filled as fast as possible.  This step is crucial because it ensures that the whole cavity is full prior to the casting starting to solidify.  Since the die casting process is one of the leading processes is the manufacturing industry, it is important to know the factors involved in the process.

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