CASE STUDY
Material: Machine: Lubrication: Operation: Holder:
Ti6Al4V Starrag Heckert Emulsion Lower blades bottom roughing (slot/ side) Shrinkfit
Tool: Tapered ball nose end mill with roughing profile zn=3, rε1=1,5 mm Cutting Data Metric N vc fz Slotting Side
3180 rpm 4775 rpm ap
30 m/min 45 m/min ae
0,015 mm 0,038 mm vf
Slotting 2,5 mm 3 mm 140 mm/min Side 5 mm 2 mm 550 mm/min Results: Tool life to machine two impellers with a single tool with stable machining conditions.
Material: Machine: Lubrication: Operation: Holder:
Ti6Al4V Starrag Heckert Emulsion Semi-finishing/ copy-milling Shrinkfit
Tool: Tapered ball nose end mill zn=4, rε=2 mm Cutting Data Metric N vc 3980 rpm ap
50 m/min ae
fz
0,063 mm vf
1 mm 0,5 mm 1000 mm/min Results: Tool life to machine an impeller with a single tool with stable machining conditions.
Material: Machine: Lubrication: Operation: Holder:
Ti6Al4V Starrag Heckert Emulsion Copy/ finishing Shrinkfit
Tool: Tapered ball nose end mill zn=4, rε=2 mm Cutting Data Metric N vc Bottom Blade
5090 rpm 5090 rpm ap
64 m/min 64 m/min ae
fz
0,079 mm 0,059 mm vf
Bottom 0,25 mm 0,5 mm 1600 mm/min Blade variable 0,3 mm 1200 mm/min Results: Tool life to machine two impellers with a single tool with stable machining conditions.
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