Die springs play a critical role in determining the quality of metal stampings, and die-spring manufacturers continue to improve spring shape, tensile properties, coatings and tolerances to keep up with increase demands from metalformers. No stamping tool or die would work as designed without good-quality, dependable and durable die springs. In the case of wire die springs, these helical compressive-type springs resist applied compression forces, or store energy in a push mode. While the earliest die springs were of a straight cylindrical shape made from round wire, producers soon introduced rectangular-shaped wire - increasing energy-storage capacity, decreasing height, and improving space efficiency.
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