Stone working – Sawing – Saw teeth
Reexamination Certificate
2006-11-14
2006-11-14
Nguyen, Dung Van (Department: 3723)
Stone working
Sawing
Saw teeth
C125S015000, C451S544000
Reexamination Certificate
active
07134430
ABSTRACT:
A cutting segment for a cutting tool used for cutting or drilling a brittle workpiece, such as stone, brick, concrete and asphalt, a method of manufacturing the segment and a cutting tool provided with the segment are disclosed. The segment comprises a plurality of plate-shaped metal matrix layers laminated perpendicular to a cutting surface of the segment while being parallel to a cutting direction of the segment, the plate-shaped metal matrix layers being integrally combined with each other and made of a ferrous or non-ferrous material; and diamond particle layers arranged between the plate-shaped metal matrix layers such that diamond particles can be provided in an array on the cutting surface. The segment has an excellent cutting capability, and can be made by a simplified manufacturing process, thereby remarkably reducing manufacturing costs.
REFERENCES:
patent: 6626167 (2003-09-01), Kim et al.
patent: 2003/0084894 (2003-05-01), Sung
Kim Soo-Kwang
Park Hee-Dong
Birch, Stewart Kolasch & Birch, LL
Ehwa Diamond Industrial Co. Ltd.
General Tool, Inc.
Nguyen Dung Van
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