Editing Cutting fluid (section)

=== Aerosols (mists) ===
Some cutting fluids are used in [[aerosol]] (mist) form (air with tiny droplets of liquid scattered throughout). The main problems with mists have been that they are rather bad for the workers, who have to breathe the surrounding mist-tainted air, and that they sometimes don't even work very well. Both of those problems come from the imprecise delivery that often puts the mist everywhere and all the time except at the cutting interface, during the cut—the one place and time where it's wanted. However, a newer form of aerosol delivery, {{Visible anchor|MQL}} (minimum quantity of lubricant),<ref name="Z">{{Citation |last=Zelinski |first=Peter |date=2006-08-28 |title=Toward more seamless MQL |journal=Modern Machine Shop |url=http://www.mmsonline.com/articles/toward-more-seamless-mql }}</ref><ref name="K">{{Citation |last=Korn |first=Derek |date=2010-09-24 |title=The many ways Ford benefits from MQL |journal=Modern Machine Shop |url=http://www.mmsonline.com/articles/the-many-ways-ford-benefits-from-mql }}</ref> avoids both of those problems. The delivery of the aerosol is directly through the flutes of the tool (it arrives directly through or around the [[tipped tool|insert]] itself—an ideal type of cutting fluid delivery that traditionally has been unavailable outside of a few contexts such as [[gun drill]]ing or expensive, state-of-the-art liquid delivery in production milling). MQL's aerosol is delivered in such a precisely targeted way (with respect to both location and timing) that the net effect seems almost like dry machining from the operators' perspective.<ref name="Z"/><ref name="K"/> The chips generally seem like dry-machined chips, requiring no draining, and the air is so clean that machining cells can be stationed closer to inspection and assembly than before.<ref name="Z"/><ref name="K"/> MQL doesn't provide much cooling in the sense of heat transfer, but its well-targeted lubricating action prevents some of the heat from being generated in the first place, which helps to explain its success.