In article ,
Dev Null wrote:


The parts are leaves in a leaf shutter for a 500W high pressure
mercury lamp optical system. The leaves sort of look like a sickle
with a short, really fat blade.

I don't care about warping when the leaf is hot. I don't want the
leaf to remain warped when it cools. The normal operating temp is
probably 200F but if there is a focus problem the leaf gets hot.
If even one leaf gets warped the shutter will jam. Which is bad.

Why don't you re-design the shutter so it only has 2 overlapping pieces,
sheets with a "V" notch to give you an adjustable square opening. The
pieces can be a lot thicker and there will be less jamming and more
ability to take the heat.

--
Free men own guns, slaves don't
www.geocities.com/CapitolHill/5357/