Invention Application
- Patent Title: ROTARY CUTTING TOOL WITH HIGH RAMP ANGLE CAPABILITY
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Application No.: US17519267Application Date: 2021-11-04
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Publication No.: US20230133391A1Publication Date: 2023-05-04
- Inventor: Leonid B. Sharivker , Sergei Boulakhov , Stephen M. George , John Boyea
- Applicant: Kennametal Inc.
- Applicant Address: US PA Latrobe
- Assignee: Kennametal Inc.
- Current Assignee: Kennametal Inc.
- Current Assignee Address: US PA Latrobe
- Main IPC: B23C5/10
- IPC: B23C5/10

Abstract:
A rotary cutting tool includes a shank portion, a cutting portion, and a cutting tip. The cutting portion includes a plurality of blades and a plurality of flutes. Each blade includes a leading face, a trailing face, and a land surface extending between the leading face and the trailing face. The cutting end includes an end cutting edge having a first end face cutting edge portion formed with a positive, neutral or negative radial angle, a positive dish angle and a negative axial rake angle, and second end face cutting edge portion formed with a highly positive radial angle, a positive dish angle and a negative axial rake angle. The highly positive radial angle of the second end face cutting edge portion enables the rotary cutting tool to perform a ramp operation at very large ramp angles of between about 15-45 degrees.
Public/Granted literature
- US11865629B2 Rotary cutting tool with high ramp angle capability Public/Granted day:2024-01-09
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