What does Minimal Quantity Lubrication mean?

lubrication mean quantity
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What does Minimal Quantity Lubrication mean?

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Generally speaking, minimal quantity lubrication (MQL) is the supply of very small quantities of lubricant to friction points. The equipment used can be metering units, micro-pumps (injection oilers), oil and air units, etc. However, the term has acquired a specific meaning in the context of metal machining, namely the replacement of flood lubrication with a cooling lubricant-emulsion consisting of a low (minimal) quantity of non-water soluble oils, oil mist and/or aerosols.

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