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Found a coolant trick that saved my inserts from chattering
Running a production job on some 304 stainless last Tuesday. Inserts kept chattering after the first pass. Tried lowering speed, adjusting feed - nothing worked. Then I bumped coolant pressure to 400 PSI on a whim. Chattering stopped immediately. Got 87 parts out of one insert versus 35 before. Anyone else running high pressure coolant for stainless?
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joel_young28d ago
320 PSI cleaned up my chattering on 316 last month and doubled my insert life too.
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shah.ben28d ago
Whoa, wait, 400 PSI? That's nuts! I've never dared go that high on my machines for fear of blowing a seal or something. I run maybe 150 PSI on a good day and it helps a little with chip control on stainless, but nothing like a 250% jump in tool life like you got. That's seriously impressive. Must have been some gnarly harmonics going on that the extra pressure just blasted away.
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