"Paul K. Dickman" wrote in message
...

"Lloyd E. Sponenburgh" lloydspinsidemindspring.com wrote in message
. 3.70...
Ok, 'solutions guys'...

I have some 0.010" phosphor bronze (spring temper) in rolls 6" wide x
80" long.

I need to cleanly slit some 3/8" strips x 80" from this without any edge
distortion.

We tried taking one a sheet metal house that had a long scissor-type
shear, and it cut it, but also curled the edge too much for our
application. It has to wind flat in a coil when finished.

I've tried sheet metal hand shears without much joy, a nibbler just chews
it, and sawing it on anything we've got is impossible.

We must not heat it. Also cost is an issue, or I'd have it done at a
waterjet and laser house down the road, but they want a couple-hundred
just to set up a job. For only five strips, that's not in budget.

A virgin roll has perfect edges, and rolls tightly. The mill that makes
the rolls from larger sheet stock cannot go narrower than 1".

Any ideas?

Thanks,
Lloyd

Try scoring it with a razor knife or one of those hooked blades you use to
score Plexiglas.

I have found that, once you have a score line, spring bronze tears pretty
easy in the direction of the grain.

I was thinking that myself, but like shearing, it might curl -- but proly
less so.
..010 is pretty thin.
Also, you could score it from both sides. Ditto the wheel on a SG.
--
EA



Paul K. Dickman