In CNC maintenance, metalworking fluids (cutting oils and coolants) are among the most critical elements, directly affecting both machining quality and the long-term operation of the machine. When used correctly, they reduce friction, control heat, and significantly extend tool life.
1. Heat Control (Cooling Effect)
Significant heat is generated during CNC operations due to high speed and pressure.
- Reduces temperature in the cutting zone
- Prevents part deformation
- Maintains dimensional accuracy
Excessive heat = tool wear and dimensional error
2. Friction Reduction (Lubrication Effect)
Metalworking fluids reduce friction between the cutting tool and the workpiece.
- Provides a smoother surface finish
- Delays tool wear
- Reduces energy consumption
3. Chip Evacuation
Ensures the removal of chips generated during machining.
- Prevents chip accumulation in the cutting zone
- Prevents damage to the cutting edge
- Ensures continuous and stable machining
4. Corrosion Protection
Metalworking fluids are effective not only during the process but also afterward.
- Forms a protective film on the part surface
- Protects internal machine parts from rusting
- Reduces oxidation during storage
5. Improved Surface Quality
- Achieves a smoother surface
- Reduces micro-cracks
- Reduces the need for post-processing (sanding, grinding, etc.)
6. Extended Tool Life
- Ensures cutting edges dull more slowly
- Reduces the frequency of tool changes
- Lowers production costs
7. Importance for CNC Machine Maintenance
- Controls the accumulation of dirt and bacteria in the system
- Proper filtration keeps the machine clean
- Prevents clogging of pump and piping systems
- If not regularly checked, bad odors, performance degradation, and corrosion can occur
8. Importance of Proper Use
- Correct concentration must be used
- Regular filtration must be performed
- Tank cleaning should not be neglected
- Dirty fluid should be replaced in a timely manner
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