Face milling cutting tool
AssigneeKabushiki Kaisha Toshiba
InventorHiroshi Shikata
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Abstract
A face milling cutting tool comprises a cutter body and cutting bits or tips mounted thereon and is characterized in that each cutting tip: is of flat shape with at least one cutting edge of convexly curved contour and has at one part of its peripheral surface a rake surface; is so tangentially mounted that a front clearance face thereof leaves an axial relief angle relative to the surface of workpiece being machined; and is so mounted that the radial rake angle of the curved cutting edge is of a large negative value. The contour shape of a cutting tip may be substantially triangular, rectangular, parallelogrammatic, circular, elliptical, or any other suitable closed figure, or a combination of any of such contour shapes.
Claims8
A face milling cutting tool, comprising a cutter body with cutting tips mounted thereon, each cutting tip being of substantially flat shape with at least one cutting edge of convexly curved shape and having at one part of its peripheral surface a rake surface, each cutting tip being so tangentially mounted that a front clearance face thereof is positioned at an axial relief angle relative to the surface of a workpiece being machined and each cutting tip being so mounted that the radial rake angle formed by the tangent line passing through the midpoint of the curved cutting edge of the tip and the line connecting the midpoint and the center of the cutter body has a value between -15 degrees to -60 degrees.
Dependencies are inferred from the claim text.