Die cutting pressure?

Sep 16, 2005 1 Replies

I do a lot of die cutting of 1"x6" HDPE plastic about 60 mills thick. I want to try and cut 5 to 10 pieces out at a time and need to design a multiple die and press. How do I determine the force needed to cut the pieces? I am thinking that a "clicker press" would work but I need to know how much force I need.



For an approximate guage, multiply the circumference of the hole by the thickness of the material and multiply that by the absolute tensile strength of the material. For example:

.5 inch dia. hole in .062 inch PVC sheet with a tensile strength of 5000 psi.

punching force in lbs = .5 * 3.14159 * .062 * 5000 = 486 lbs

Hul

gtslabs wrote:

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