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The Sheet Metal Shop .Com Forum Index » Sheet Metal Forums » Sheet Metal Basics

Help punching Copper disc

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avldo

Post subject:Help punching Copper disc

Posted: Mar 20, 2008 - 02:46 AM #7405

Joined: Mar 20, 2008
Posts: 1

I need to punch 4" copper discs while making them concave. I'm using .062 medium hard copper. Will a 30 ton press accomplish this task?

bigt

Post subject:RE: Help punching Copper disc

Posted: Mar 20, 2008 - 08:05 PM #7408

Joined: Mar 03, 2005
Posts: 21
Location: Stuart Fl.

The formula that I use shows for that thikness in steel would be almost 20 tons and if you mutiply that by .57 for copper-rolled you would be 11.4 tons. As for the concave shape you are going for that you would have to talk to a tooling manufacturer, I use Wilson Tool (www.wilsontool.com) they are very helpful. I hope this helps you some!

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