Title:
【発明の名称】チッピング加工用切削インサート
Document Type and Number:
Japanese Patent JP3115668
Kind Code:
B2
Abstract:
An insert for a milling cutter has a chip face and a bottom face which are interconnected by side surfaces. The intersection of side surfaces with the chip face forms four cutting edges. Each side surface is beveled at its intersection with a cutting edge to form a planar clearance face, the width of which increases toward one of the cutting corners. Each cutting edge includes a main edge portion, a corner edge portion, and a secondary edge portion. Each secondary edge portion extends inwardly from an associated secondary edge at an angle no greater than four degrees. At each corner, a secondary edge portion of one cutting edge forms an actual angle with a main edge portion of another cutting edge greater than ninety degrees. The insert is mounted at a negative radial rake and a positive axial rake such that such actual angle presents to a workpiece an effective angle of ninety degrees to cut a ninety degree shoulder in the workpiece.
Inventors:
Guerlain Pantosal
Application Number:
JP35736491A
Publication Date:
December 11, 2000
Filing Date:
December 03, 1991
Export Citation:
Assignee:
Sandvik actie borrag
International Classes:
B23C5/06; B23C5/20; B23C5/22; (IPC1-7): B23C5/06
Domestic Patent References:
| JP2298415A |
Attorney, Agent or Firm:
Aoki Akira (4 outside)