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The setup guy in Mansfield swore I should run my rougher dry, and he was right
Six months back a setup guy at our shop in Mansfield watched me flood coolant on a roughing pass and said to try it dry at 70 percent spindle speed. I figured he was messing with the new guy, but the chips came off clean and my insert life went from about 4 hours to 11. Heat was going into the chip instead of the part, which I had read somewhere but never really trusted. Now I am second guessing every other habit I picked up. Has anyone else had an old timer hand them a tip that sounded wrong but paid off?
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park.wyatt18d ago
The heat going into the chip thing is real, but it's not just about going dry, it's the coating on the insert that needs the heat to work right. Run a plain uncoated insert dry at 70 percent and you'll cook it in 20 minutes.
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