Case Studies: Medical Materials, Cobalt Chrome & Titanium
Machining of Wrought Co-Cr with LIN/Al2O3
ICEFLY Benefits
Material removal rate was improved by 290%, in addition to a tool life improvement of 50%.
In the ID operation, Al2O3 inserts performed successfully, even with mild interruptions.
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Machining of Cast Cobalt Chrome Stems (50 HRc)
Part: Cobalt Chrome Stem (1.310” dia)
Operation(s): OD Turning
Tooling: CNGA433/DNGA 432 whisker ceramic insert
Depth of Cut: 0.100” (rough), 0.010” (finish)
Feed: 0.005” /rev. Speed: 330 SFM
MRR Improvement: 243% (rough), 296% (finish)
Cut Time (ICEFLY): 4 min. (rough), 1 min. (finish)
- A combination of liquid nitrogen (LIN) coolant and minimum quantity lubrication (MQL) vegetable oil proved to be the optimal solution.
- Depth of cut notch was very severe with flood coolant and would ultimately cause fracture of the nose, in addition to trailing edge wear.
Flank wear after 4 roughing passes with LIN/MQL
Flank wear after 2 roughing passes with flood