MITSUBISHI MATERIALS CORPORATION
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FUNCTION OF TOOL FEATURES FOR TURNING

CUTTING EDGE INCLINATION
Cutting edge inclination indicates inclination of the rake face. When heavy cutting, the cutting edge receives an extremely large shock at the beginning of cutting. Cutting edge inclination keeps the cutting edge from receiving this shock and prevents fracturing. 3°–5° in turning and 10°–15° in milling are recommended.
Effects of Cutting Edge Inclination
  1. Negative (-) cutting edge inclination disposes chips in the workpiece direction, and positive (+) disposes chips in the opposite direction.
  2. Negative (-) cutting edge inclination increases cutting edge strength, but it also increases back force of cutting resistance. Thus, chattering easily occurs.
CUTTING EDGE INCLINATION