What is the difference between cold, warm, and hot forging?
Cold Forging is used in the production of parts that are symmetrical and weigh 25 lbs or less. The process is performed when the metal, usually carbon and standard alloy steels, at room temperature goes through impression die forging or true closed die forging. The dies used in cold forging are usually circular and require lubricant. The end products are draftless, close-tolerance parts. Cold forging typically improves mechanical properties of the finished pieces, however the improvement isn’t necessarily useful in many applications.
