What it sounds like you need is a shim punch, such as that shown
http://www.harborfreight.com/cpi/cta...emnumber=47734

or
http://cgi.ebay.com/ws/eBayISAPI.dll... 861&tc=photo

Which can be driven with a hammer or a press



"Ron Hubbard" wrote:


"John Chase" wrote in message
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"Ron Hubbard" wrote in message
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"Ron Hubbard" wrote in message
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Here, I guess is a newbie question, because I don't remember that part
of
machine
shop. Does anyone know of a way to punch out nice round circles of
aluminum or
brass out of sheet metal in such a way that there are no holes in the
circles?

Ron


How big? How thick? How many? The obvious answer is a die set on a punch
press. I punch millions of rounds from 0.1875" x 6"


Is a punch press an expensive item to purchase?

If all you want to do is punch some rounds ("one-off" quantities), you might
get by with an arbor press, in which case the die set would likely be the
most expensive tool. If you want a "production-type" punch press, well,
depending on the size, you might have to build some place to house it. :-)


I just need to make a few thin aluminum or brass circles to
make custom piezo-buzzers like the kind used in alarm clocks, smoke alarms, etc.

Ron



jk