What press force is needed ?
 

"Andre Majorel" wrote in message
...
Thanks for the hint, Ned. How do you know what press force is
needed for a given job ? Specifically, punching holes about
1 cm² in 1 mm steel or 3 mm aluminium.

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André Majorel URL:http://www.teaser.fr/~amajorel/
"Marque nouvelle. Dans le stock. Les navires de FL, les
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You can reduce the amount of force by grinding an angle on the punch.