Most manufacturers use the closed die forging technique when they need to forge metallic parts that are small or medium-sized. The fact that multiple elements and factors are being merged during the process of forging leaves us no reason to wonder why this technique is able to generate results that are geometrically accurate. However, before resulting in a closed die forging technique, it is essential to first determine the difference between open die or closed die forging.
Free forging, commonly known as open die forging, is the method of deforming the metals between the several dies. It is called open die forging since the multiple dies do not entirely enclose the metal. These dies often hammer the metal through a chain of movements. It tends to alter the dimension of the metals until the dies reach the desired shape.On the other hand, closed die forging is also called an impression forging. It takes advantage of a specific amount of pressure to force the metal piece into an encircled or bounded die. This process uses an induction heating furnace with medium frequency to heat the metal to reach the desired pattern.
In whatever you purchase or manufacture, one of the important factor to look into are the advantages or disadvantages of the product. Die forging is the perfect method to achieve maximum tolerance. When it comes to open die forging, it is cost-effective since it uses less material waste. Additionally, it offers reduced chances of voids in your final forging, can increase strength to achieve longer product life, improved microstructure, and has an excellent fatigue resistance.In contrast, closed die forging offers excellent net shapes, tighter tolerances, and better surface finish. It is resorted to so there can be no material limitation and it will be economically beneficial when it comes to large runs.
If you need more details about open and closed die forgings, contact Ferralloy, Inc. today!
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