Re: Cutting Oil as a coolant
Look at the synthetic cutting oils, they have a higher water content, with better corrosion and heat despation. I use to use one that was a 15:1 mix (h2o:oil). No foaming at all. It took a long time to get the film on the surface. Most was due to contamination by oils or from our cleaning bath. I only had to replace the mix every 6mo, not every month like petro oil was. The sys oil was for cutting stainless. We had another one for Al/soft metals.
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