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Hole Finishing Application Example
Aluminium Gear Housing
PCD STEP REAMER
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Bearing bore Ø 130mm.
Tolerance range 25 μm S6.
Aluminium AlSi8Cu3.
Varying depth of cut ca. 0,5–5mm.
Machining centre with internal coolant.
CHALLENGE
SOLUTION
• PCD tipped, steel-based tool with HSK
interface and internal coolant.
• Six effective cutting and chamfering teeth
in positive cutting position.
• vc = 350 m/min (1.148 SFM).
• f = 0,60 mm/rev (.024 IPR).
CUTTING
DATA
RESULT
• Tool life increase versus previous solution.
• Surface finish Ra 0.2 μm.
Highly uneven flute design
reduces vibrations.
BENEFIT
Secure process.
Most productive solution at large diameter.
Very long tool life.
Reconditionable.
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W79
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