Transfer Die Stamping is similar to a progressive die, but the part is transferred from station to station by a mechanical transport system. Mainly used where the part has to be free from the strip to allow operations to be performed in a free state. A transfer die can be a single die by itself or a numbers of dies or machines arrange in row to form a production line.
Transfer Press Stamping is an excellent option for the production of stampings and often offers the benefit of lower tooling costs. A transfer press tool can be a single die by itself or a number of dies arranged into sequential stations. A transfer press is used in circumstances where the part has to be free from the metal strip to allow operations to be performed in a free state. The transfer press process begins with a strip of metal fed into the first station where the blank for the component is cut from the strip. The blank is then transferred mechanically by transfer fingers that carry the part through various forming stations to completion. All parts are transferred to the next station at the same time. Transfer presses are extremely versatile and many part features such as pierced holes, chamfering, cut-outs, ribs, knurls and threading can be designed into primary press operations, eliminating the need for additional cost involved in many secondary operations.
Some examples of when to use Transfer Die Stamping: