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US 9,724,768 B2Granted
Cutting tool with enhanced chip evacuation capability and method of making same
AssigneeKennametal Inc.
InventorsLeonid Boris Sharivker, Sergei Vladimir Boulakhov
Life of this patent
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Abstract
A milling cutter includes a shank and a cutting head attached to the shank. The cutting head has a plurality of helical teeth, each tooth including a cutting tip, a leading face and a rear face. A flute is defined between the leading face of a trailing tooth, and a rear face of an immediately preceding tooth. A gully of the flute is generally W-shaped in cross section to provide effective chip evacuation. A method for manufacturing the milling cutter with the W-shaped gully of the flute using a split path grinding process is also disclosed.
Claims9
A milling cutter, comprising:
- a shank;
- a cutting head attached to the shank, the cutting head having a plurality of helical teeth, each tooth including a cutting tip, a leading face and a rear face;
- and
- a flute defined between the leading face of a trailing tooth, and a rear face of an immediately preceding tooth,
- wherein a gully of the flute is W-shaped in cross section to provide additional volume for effective chip evacuation,
- wherein each tooth further comprises a planar primary relief rake facet which extends entirely between the leading face and the rear face and connects directly with both the leading face and the rear face.
3 more elements
Dependencies are inferred from the claim text.