This article discusses different factors for selecting progressive dies: costs, production volume, and press availability. It describes the purposes of strip development for a ring shaped part and presents the principles for the development of progressive dies. The article provides discussions on the general design features of progressive dies and the choice of proper auxiliary equipment such as coil feeders and scrap handling equipment. It concludes with information on different presses for progressive die work: open-back inclinable presses, four-column presses, and automatic underdrive presses.
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