vacuum chuck
vacuum chuck
(OP)
I need to machine to .018 thick (7"square). - one off job. Where might I get a used vacuum chuck
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RE: vacuum chuck
RE: vacuum chuck
RE: vacuum chuck
start with a 1 inch thick alu plate
.125 slotx.275deep around the edge(.125 inside the 7x7)
buy retangluar gasket from vac-u-form .125x.3125 rockford il. about 50 bucks
brush or cut pattern in inside area for vacuum
add vacuum (side or bottom)from a cheap pump can be done with a hand pump
or surplus pumps can be found on the net
i have built a few for maching .385 7x10 alu plates with lots of deep pockets-thin wall
good luck
RE: vacuum chuck
Good Luck Libor PĂrko Czech Republic
RE: vacuum chuck
Punch it out / laser cut it / waterjet cut it.
Require a milled finnish? leave 0.5mm /0.020" on the edges to clean up on a machine centre
bolt it down with service lugs you add to the profile and crop them off when you are finished.
It is even possible just to mill it from solid use high cobalt hss I find carbide snaps too easy I use 6mm HSS Tin coated.
RE: vacuum chuck
RE: vacuum chuck
Robert Setree
www.advanced-grinding.com