Who needs coolant????

[depronman]

We have some machines at BAE that rip though titanium and absolutly mad rates, you can't see the cutter for a cloud of chips. These used to be cut with coolant, literally gallons per second flooded at high pressure to cool and remove the chips
However some years ago they moved to tooling that cuts dry and the feed rates are insane, however I recal this was for roughing out only, and the finish cuts are still done under flood coolant, likely to be for surface finish and crack protection

Paul

[Voicecoil]

We have some machines at BAE that rip though titanium and absolutly mad rates, you can't see the cutter for a cloud of chips. These used to be cut with coolant, literally gallons per second flooded at high pressure to cool and remove the chips
However some years ago they moved to tooling that cuts dry and the feed rates are insane
Paul

I'm suprised you can cut Ti dry like that as it burns rather well - sprinkle some fine swarf into a gas flame if you want to experiment! Or maybe they just have to make sure the chips are big enough?