High load bearing capacity with minimal compression set make Urethane a superior material choice.
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We have made many bulging dies made of urethane, wherein the elastomeric property of Urethane, combined with excellent elastic memory and high load bearing capacity with minimal compression set make Urethane a superior material choice.
Stainless steel pan covers are bulged with a Urethane punch, by bulging the part into a split Steel die. Tube in the photo is formed with round urethane rod and a split steel die.
Chemical composition does make a difference in the life expectancy of a Urethane product, in a severe deflecting application as this example.
As seen in this video, we were brought in to study the urethane (red part in the middle of the die set) when they were getting only 4000 hits, and the customer wanted us to increase the life expectancy to 10000 hits. The first part that we made lasted over 175000 hits.