Glare Reduction
Glare Reduction
(OP)
Does anyone have any experience with glare reduction inside a bore? Specifically we are looking to machine internal threads into an aluminum bore (black anodized finish)and plan to machine AR threads. Can anyone suggest a thread form to use, thread angle, pitch??
RE: Glare Reduction
I specify a surface finish of 500/250 microinches (12/6 microns). Who cares what the thread profile is.
If you do not have a surface roughness gauge, get one. Maybe, you want to go rougher.
RE: Glare Reduction
I've also played with some different profiles but once you go away from a standard shape you might as well make them circular grooves instead of a helical. In that particular case it worked really well but if you want to go this route you'll need a non-sequential optics program to play with the shapes and see the effectiveness.
Bead blasting the surface has worked in the past but you need to be careful because that may create a lot of 'glare spots'. I normally try to avoid that but it's worked before.
HTH,
Dan
RE: Glare Reduction
http://pioneermetal.com/optical_black
Harold
SW2011 SP2.0 OPW2011 SP2.0 Win 7 Ultimate
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RE: Glare Reduction
RE: Glare Reduction
RE: Glare Reduction
TTFN
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RE: Glare Reduction
We used razor blades in one application to minimize the glint. Your comment about the sharp crests is spot on. Just make sure that your manufacturer doesn't start to get lazy and wind up with duller crests.
TTFN
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