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The time now is Oct 13, 2008 - 09:28 PM

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


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avldo
Post subject:Help punching Copper disc PostPosted: 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?
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bigt
Post subject:RE: Help punching Copper disc PostPosted: Mar 20, 2008 - 08:05 PM #7408



Joined: Mar 03, 2005
Posts: 23
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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