Challenge
Material:
Steel 38MnVs6
Part:
Crank shaft
Drill hole:
Ø4,0 (0.157“), 110 mm (4,33“) long
Pecularity:
Operation runs with MQL
Previously:
Competitor‘s tool achieved tool life of 1.400 holes
Goal:
Increase tool life to 2.000 holes
KOMET-Solution
KOMET KUB® Drillmax XL Ø 4,0 27×D IK TiAlN
Cutting data:
Pilot hole
JEL carbide end mill Ø4,0 NZ2 TiAlN since hole starts on an angle
Deep hole drilling
Entering pilot hole vc 31 m/min (102 SFM)
f 0,05 mm (.00196“)/rev.
Drilling
vc 80 m/min (262 SFM), f 0,13 mm (.0051")/rev.
Feed out of the hole
vc 13 m/min (43 SFM), f 0,13 mm (.0051")/rev.
Customer's Benefit