Garolite G10CE

[Mookie 845]

Any advice for cutting Garolite G10CE. I'm assuming it's a type of phenolic.

Cut it  dry or with coolant. Will it chip when facing over existing holes.

[civiceg]

It can chip if your tools are not sharp. Make sure to face below the gel coat by .02 or so, so it does not delaminate. Making a chip with it will make the tools last...longer. I always cut it with coolant and run additional filters to collect the bulk of the crap. If you run coolant, run it on a machine with a small sump, because no matter how well you filter the coolant, overtime it will build up in the tank. 

If you do it properly it will not chip when facing over existing holes. 

[Mookie 845]

Thanks for the advice. I did a search and found some other info as well. All good stuff.

[Matthew Hajicek - Singularity]

"Graphite is added to these Garolite CE sheets to provide a slippery surface that reduces friction. Often used for bearings and wear pads, they’re constructed of a phenolic resin with cotton fabric reinforcement and 8% graphite filler."

https://www.mcmaster.com/#garolite/=19du9to

Harvey has cutters designed for composites, including "compression" cutters to avoid delamination.

[jeff]

It's abrasive as hell.  Use diamond coated tooling if you have a lot of them to do.

Cut it dry, don't let the dust/chips get into your coolant tank because it turns your coolant to goo and it will clog your coolant filters for months.

[Mookie 845]

It actually doesn't cut too bad, thought it would be way worse. Seems that either wet or dry is chip/dust containment is almost impossible. It's either in the air (bad)  or clogging the coolant screens. I only have 2 pieces to do so not the worst, just that they are 18 x 32 and 2 inches thick. Milling the width down from 21 to 18 and taking roughly .07 off the thickness.

[Leon82]

I always Dynamic face the stuff, even delrin