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Question about coolant mix and tool life
I was talking to a guy at a supply house in Toledo who said he runs his coolant at a 12 to 1 mix instead of the usual 10 to 1. He claimed it cut his end mill wear by almost 20% on aluminum parts. I tried it on a run of 304 stainless brackets last month and my inserts definitely lasted longer. Has anyone else played with their coolant concentration and seen real results?
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adams.vera4mo ago
Yeah but 304 is nothing like aluminum for coolant needs though.
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kevinking5mo ago
Tried that once and ended up with a coolant so weak it was basically fancy water. My tools threw a fit and my finish looked like a cat scratched it. I run a little richer now too, especially on nasty stuff, but I'm too scared to write down my mix ratio in case the coolant rep sees it.
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