Page 1671 - Master Catalog 2017, Inch

Hole Finishing Application Example
Aluminum Gear Housing

PCD STEP REAMER

• Bearing bore Ø 130mm. CHALLENGE
• Tolerance range 25 μm S6.
• Aluminum AlSi8Cu3.
• Varying depth of cut ca. 0,5–5mm.
• Machining center with internal coolant.

SOLUTION
• PCD tipped, steel-based tool with
HSK interface and internal coolant.
• Six effective cutting and chamfering
teeth in positive cutting position.

CUTTING

• vc = 1.148 SFM (350 m/min). DATA
• f = .024 IPR (0,60 mm/rev).

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.

widia.com U93

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