Closed die forging is an efficient method to produce custom metal parts. This process uses pressure to compress the metal piece to fill an enclosed die impression which is why closed die forging is also known as impression forging.
A medium frequency induction heating furnace is used to heat the steel. Then as the dies press together, the material is forged to fill the impressions, and the excess metal is squeezed out. This is the best method to meet tolerances and results in finished parts that are completely filled and produced with the least amount of flashing.
Closed die forging results in a forged part that is very close to the final configuration of your steel part with very little finishing needed. We provide closed die forgings in a variety of carbon, alloy and stainless steels.
Cold forging uses a displacement process to shape the material into the desired shape. Compressive force squeezes the metal between a punch and die at room temperature until the material conforms to the die's contours. Cold forging techniques include rolling, pressing, drawing, spinning, heading, and extruding.
In open die forging, a hammer strikes and deforms the workpiece, which is placed on a stationary anvil. Open die forging gets its name from the fact that the dies (the surfaces that are in contact with the workpiece) do not enclose the workpiece, allowing it to flow except where contacted by the dies. The operator, therefore, needs to orient and position the workpiece to get the desired shape.
Open die forging is an important technique for many types of manufacturing. It allows rough and finished shapes of many different steel grades. This type of forging is typically used for very large workpieces.
Open die forged parts are commonly used in the oil and gas, aerospace, mining and construction industries. High-pressure equipment especially benefits from the tough internal structure created in the open die forging process.
Seamless rolled ring forging begins by punching a hole in a thick, round piece of billet. The piece is then rolled and squeezed into a thin ring. The seamless rolled ring forging process orients the grain flow circumferentially, which provides great resistance to fatigue and impact. Ring rolled forgings can be produced in configurations ranging from flat, washer-like parts to tall, cylindrical shapes.
We can supply ring rolled forgings of 15-inch outside diameter and larger in a range of steels including alloy, stainless and carbon. We also provide contour rolled ring.