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Minimum Quantity Lubrication (MQL)Minimum Quantity Lubrication (MQL) refers to the use of a precision dispenser to supple a minuscule amount of  cutting to the tool-workpiece interface, typically at a flow rate of 5 to 500 ml/hour. 
Minimum Quantity Cutting Fluid (MCQF) Parameters
Stage I
Cutting Fluids

- Physical Properties and Chemical properties 
- Emulsion Composition 

Stage II
Minimum Quantity Cutting Fluid (MCQF) 

 
- Nozzle standoff distance
- Nozzle spray angular position

Stage III
Machining 
- Machining forces

- Coefficient of friction
- Workpiece surface roughness
 

Single Point Cutting Tool Operations


Turning 
Boring 
Planing 
Threading 


Multi-Point Cutting Tool Operations


Tapping 
Broching 
Sawing 
Milling 
Drilling 
Reaming 
Hobbing