Type of forging process

Types of forging process:
1. Impression Die Forging pounds or presses metal between two dies or toolings that contain a pre-cut profile of the desired parts. Parts from a few ounces to 60,000 pounds can be made using this process.
2. Open Die Forging is performed between flat dies with no percut profiles in the dies. Movvement of the work piece is the key to this method. Larger parts over 200,000 pounds and eighty feet in length can be hammered or preesed into shape this way.
3. Seamless Rolled Ring Forging is typically performed by punching a hole in a thick, round piece of metal ( creating a donut shape), and then rolling and squeezing( or in some cases, pounding) the donut into a thin ring. Ring diameters caan be anywhere from a few inches to thirty feet.
4. Cold Forging is more unusaual because most forging process is done as hot work, at temperatures up to 2,300 degrees F. Cold forging encompasses many processes, bending, cold drawing, cold heading, coining, extrusions and more, to yield a diverse range of part shapes. The temperature of metals being cold forged may range from room temperature to several hundred ddegrees.