Toymaker,
One thing to keep in mind is your health. Petroleum oil mists and smoke can give airway problems, and even give pneumonia a chance to get started.
Water is still the best coolant, if cooling is what you need. The synthetic coolant dilutions available improve the lubricity, help reduce rusting. They are still not good to breath in mist form.
If you get mist and smoke produced from your work, you need a bit of ventilation to remove it. Some kind of a wall fan and a 4" dryer hose ducted to it will help. If you have a dust collector, that should help remove fumes, if the exhaust is outside.
Flood coolant is pretty safe, because there is so much being applied, that steamy mists do not get a chance to form. However, mists can still be formed from high speed chucks and such if the coolant is being flung off.
I like the Trico microdrop lubrication system for aluminum milling, which can use a vegetable based oil applied with air. It is non fogging by design, but a hot work zone can still turn this into smoke, too. It's still not good to inhale the smoke, even if it is vegetable based.
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(Note: The opinions expressed in this post are my own and are not necessarily those of CNCzone and its management) |