With closed die aluminum forging, also recognized as impression-die forging, a piece is contained in a die attached to an anvil. The shaped hammer drops onto the aluminum, forcing the piece into the die cavity. The metal assumes the shape of the die cavity.
Modern Closed Die Aluminum Forging
Modern equipment used for closed die aluminum forging has the ability to hammer the aluminum many times in just a brief amount of time. This forces out any excess material so it can be trimmed and all that is left is the metal filling the die.
In operations with high production, the aluminum piece is moved through a number of different dies, taking it from its original shape through a series of different shapes until the desired final shape is achieved. This makes it possible for the manufacturer to create the required shape quickly and efficiently. Therefore, in recent years, the process of closed die aluminum forging has become more automated.
When to Use Closed Die Aluminum Forging
Closed die aluminum forging is commonly used when projects require small or medium-sized components. This process is primarily used to make complex shapes that require the least amount of finishing work.
For the more complicated shapes, the closed die aluminum forging process is done in steps until it the final shape is achieved. The reason for this is that when you force a piece to change its shape too rapidly, the part may break. While this is a bigger concern with forging steel than it is with forging aluminum it must still be taken into consideration when working with complicated parts.
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