Hi Nicklas,
A bit off the wall but maybe bend unhardened then flame harden with a
closely following spray quench followed by temper.
Speed in bending may have an effect on spring back.
This, of course, is much easier to talk about than it is to do. :-)
Dave
On 10/11/20 9:07 AM, Nicklas SB Karlsson wrote:
Maybe a little bit off topic but Linuxcnc will be used then
manufacturing it. Should make tool for bending of sheet metal, reason
is it is quite many small bends around the edges and I need to try
machine on something. I figured there need to be a pressure pad
holding it in place while a punch bend it around a corner, this is
rather simple but do anybody know if it is possible to get a 90 degree
bend then spring back is accounted for?
First thing I think about is to add a small uphill leaning inside the
corner small enough not to bend the plate, tool will be simple but are
not sure how to calculate geometry. This will be me first bending tool
and would guess this is not a to uncommon problem then bending sheet
metal.
I also have problem finding a spring, ideally it should be
manufactured in non conductive material straight or slightly bent 40mm
long and have a force of around 100N then pressed a few millimeters. I
found plastic lose quite much force after a while and even to some
degrees years after assembled, this is not good so I guess I have to
stick to ordinary steel springs. Searched resellers and even though
far from ideal I could use some of the standard if necessary. Might be
able to find someone who could harden a few nearby, even a simple old
style black smith should be able to do it. A little bit interested if
anyone know about something non conductive not losing force over time.
Regards Nicklas Karlsson
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