Rotary cutting method
AssigneeSubaru Corporation
InventorsKinue ITO, Kenji MURAI, Shinichi YAJIMA, Takashi SUGIMOTO
Life of this patent
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Abstract
A rotary cutting method includes producing a processed product by rotary cutting of a workpiece by a rotary tool. The rotary tool has at least one cutting edge of which both of a first rake angle in a rotation radial direction and a second rake angle in a rotation axis direction are negative. The at least one cutting edge has a slanted face connected with a rake face forming the first and second rake angles. The slanted face is connected with the rake face at a ridge line. The slanted face faces a rotating direction of the rotary tool. An angle of the slanted face to the rotation axis direction is positive.
Claims20
A rotary cutting method comprising:
- producing a processed product by rotary cutting of a workpiece by a rotary tool,
- wherein the rotary tool has at least one cutting edge of which both of a first rake angle in a rotation radial direction and a second rake angle in a rotation axis direction are negative, and
- mechanical strength of the processed product is improved by giving compressive residual stress of not less than 100 MPa to the workpiece by the rotary tool.
A rotary cutting method comprising:
- producing a processed product by rotary cutting of a workpiece by a rotary tool,
- wherein the rotary tool has at least one cutting edge of which both of a first rake angle in a rotation radial direction and a second rake angle in a rotation axis direction are negative, and
- mechanical strength of the processed product is improved by giving compressive residual stress to the workpiece by the rotary tool, the compressive residual stress being given to a range of which depth from a surface of the workpiece is within 0.2 mm.
Dependencies are inferred from the claim text.