Title:
【発明の名称】回転可能な切削工具及び硬質インサート
Document Type and Number:
Japanese Patent JPH05508689
Kind Code:
A
Abstract:
A rotatable cutting tool for impacting and fragmenting a substrate. The tool has a tool body containing a valve seat in the forward end thereof wherein a hard insert affixes to the tool body within the valve seat. The hard insert comprises an integral tip segment and an integral axially rearward segment joined to the tip segment by an integral mediate segment. A trio of generally vertically disposed flanges project radially outward from the mediate segment. The flanges are integral with the mediate portion. Each flange presents at least one side surface. During operation, the substrate fragments impinge against the side surface to urge the tool to rotate about its central longitudinal axis.
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Inventors:
Loreet Don Xi
Steffler Stephen Pee
Peach Wayne H
Steffler Stephen Pee
Peach Wayne H
Application Number:
JP50663591A
Publication Date:
December 02, 1993
Filing Date:
March 21, 1991
Export Citation:
Assignee:
Kennametal Inc.
International Classes:
E21C35/197; E21C35/18; (IPC1-7): E21C35/18
Domestic Patent References:
| JPS6378993A | 1988-04-09 | |||
| JPS608704B2 | 1985-03-05 |
Attorney, Agent or Firm:
Yu Saito (2 outside)