I need to cut some 0.020" thick aluminum into 3/16" circles (just a few). Any suggestions? The disc cutters in Jewelry are 1/8" and 1/4".
Maybe drill a 3/16" hole into two pieces of steel and sandwich the aluminum. Then use a rod (maybe sharpened) to punch them out? Basically make a punch?
Use the punch press.
I assume this means we have a 3/16” punch?
Not sure if the press has that size, but if we do the press is the easiest way to do it.
(assuming we mean the turret punch press…)
It did have at some point in the past… not sure about right now…
IIRC it does, but for material that thin make sure you sandwich it between some sacrificial pieces. I was doing some 0.050 aluminium and whilst the pierce is great, getting the die out and keeping it clean is harder without the extra meat.
Well, since I’m here right now I’ll just walk out there and look. Thanks!
For reference, here are the punch sizes (3/16" to 1.5", in various increments) @artg_dms and I figured out how to use the punch. Unfortunately, I need the punch, not the surrounding material, and the punched part was significantly domed. But it was a great learning experience and the punch is super easy to use!
That punch machine was donated to DMS from my former employeer that I retired from. What is so nice about this punch is that it is manually operated.
Try turret punch in machine shop