Drilling in gearbox out of Al < 10% Si with  KOMET  RHOBEST®  Drillmax 90 | NCD-coating, Solid Carbide Drill

Challenge

Material:
Al < 10% Si
75 HB, cast

Part:
Gearbox

Drill hole:
Ø 9,3 mm

Machine:
Excello #700951 with HSK-A63, MMS

Feed rate:
4000 mm/min

Previous:
Uncoated tool
2000 parts x 5 holes

KOMET-Solution

Solid carbide drill Ø 9,3 mm with  KOMET  RHOBEST®  NCD-coating
Cutting data:
vc = 467 m/min
n = 16000 min-1
f = 0,25 mm/rev
vf = 4000 mm/min

Customer's Benefit

  • Vs. competition tool life increased from 10,000 to 92,375 holes
  • Safe process established