Anderson Shumaker is a leader in die forging. This is the best method to meet tolerances. It results in completely filled, finished parts and creates the least amount of material waste. But what exactly is open and closed die forging?
Open-die forging (“free forging”) deforms metal between multiple open dies. These dies hammer the metal to alter its dimensions until it achieves the desired shape. Open-die forging results in: better fatigue resistance, improved microstructure, continuous grain flow, increased strength, less flashing, and overall cost savings.
Alternatively, closed-die forging (“impression forging”) compresses metal to fill enclosed dies. As the dies press together, the metal fills the impressions, and excess material is squeezed out. Closed-die forging offers: better surface finish, no material limitation, tighter tolerances, increases product strength, and is highly economic for large runs.
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