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Title: Composite structure for cutting tools

Abstract

A cutting tool comprises a compact bundle of elongated, substantially cylindrical fibers or rods formed from a cemented metal carbide material. The bundle of fibers is shrink-fitted within a metal collar to form a long-wearing cutting tool.

Inventors:
;
Publication Date:
OSTI Identifier:
6384982
Patent Number(s):
US 4452325
Assignee:
Conoco Inc. EDB-84-174225
Resource Type:
Patent
Resource Relation:
Patent File Date: Filed date 27 Sep 1982; Other Information: PAT-APPL-424947
Country of Publication:
United States
Language:
English
Subject:
02 PETROLEUM; 42 ENGINEERING; DRILL BITS; DESIGN; FABRICATION; CARBIDES; METALS; ROCK DRILLING; RODS; SERVICE LIFE; CARBON COMPOUNDS; DRILLING; DRILLING EQUIPMENT; ELEMENTS; EQUIPMENT; 020300* - Petroleum- Drilling & Production; 420206 - Engineering- Mining & Drilling Equipment & Facilities- (1980-1989)

Citation Formats

Radd, F.J., and Haden, E.L. Composite structure for cutting tools. United States: N. p., 1984. Web.
Radd, F.J., & Haden, E.L. Composite structure for cutting tools. United States.
Radd, F.J., and Haden, E.L. 1984. "Composite structure for cutting tools". United States. doi:.
@article{osti_6384982,
title = {Composite structure for cutting tools},
author = {Radd, F.J. and Haden, E.L.},
abstractNote = {A cutting tool comprises a compact bundle of elongated, substantially cylindrical fibers or rods formed from a cemented metal carbide material. The bundle of fibers is shrink-fitted within a metal collar to form a long-wearing cutting tool.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1984,
month = 1
}
  • To apply hard cutting particles, for example of tungsten carbide, on the surface of the cutting edge of a cutting tool, such as a saw blade, a drill, or the like, the cutting edge is partially melted by an energy beam, for example a laser beam, or an electron beam. A laser beam is preferred since, then, the process can be carried out in air, or in a protective gas atmosphere, rather than in a vacuum. The beam partially melts the cutting edge and the granules of the hard metal particles, preferably in a random grain size of between 0.3more » to 1.5 mm is permitted to run down, over the partially melted surface, excess being collected for reuse; alternatively, the partially melted surface can be dipped into the granules, and permitted to solidify.« less
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