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Sringback

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nicrs

nicrs

Mechanical
Feb 15, 2005
1
Looking for "springback ratios/constants." Trying to make a die with a rather large diameter (14" or so) and want to eliminate the number of guess and checks, so I found equations dealing with spring back, know I need to know where to find the springback constants (usually assigned the variable "K") for different steels aluminums.
 
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It has been my experience that the spring back will vary from mill run to mill run in the same mill. If you are talking about different suppliers you have a problem. The big players (automotive) have enough clout to demand a tight tolenrance on mechanical and chemical properties but the average joe does not unless you want to pay a good bit extra.

Good Luck
Barry1961
 
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