Disk cutter

Abstract

A disk cutter including an annular disk-shaped base adapted to be driven about an axis of rotation, a plurality of tip supports formed along the outer circumference of the base integrally therewith so that a gullet is defined between adjacent ones of the tip supports, and a plurality of cutting tip inserts respectively fixed to the tip supports. Each of the cutting tip inserts has a pair of rakes inclined from the opposite side surfaces of each tip insert to the center of the thickness of each tip insert so as to define a first V-shaped groove, and a pair of flanks inclined from the opposite side surfaces of each tip insert to the center of the thickness of each tip insert so as to define a second V-shaped groove. The pair of rakes are formed in symmetry with respect to the center of the thickness of each tip insert, and the pair of flanks are also formed in symmetry with respect to the center of the thickness of each tip insert.

Description

BACKGROUND OF THE INVENTION [0001] 1. Field of the Invention [0002] The present invention relates generally to a disk cutter, and more particularly to a disk cutter or circular saw suitable for cutting of a board (decorative laminate) having a surface to which a hard decorative film is fixed. [0003] 2. Description of the Related Art [0004] A disk cutter or tip saw including a base disk having a plurality of tip supports arranged along the outer circumference and a plurality of hardened cutting tip inserts (cutter inserts) respectively fixed to the tip supports by brazing or the like is frequently used for board cutting or the like. The tip supports are spaced at given intervals in the circumferential direction of the base disk or annular disk-shaped base, and a gullet (chip-space) is defined between adjacent ones of the tip supports. Each tip support has a recess, and each cutting tip insert is fixed in the recess of the corresponding tip support by brazing or the like. The base dis...

AI Technical Summary

Benefits of technology

[0007] It is therefore an object of the present invention to provide a disk cutter which can cut a board (decorative laminate) having a surface to which a hard decorative film is fixed without the edge chipping or cracking on the cut surface of the decorative film.

Problems solved by technology

Further, the knife marks generated on the cut surface become coarse.

Accordingly, in cutting a board (decorative laminate) having a surface to which a hard decorative film is fixed, there arises a problem of edge chipping or cracking on the cut surface of the decorative film.

Further, the cut surface becomes rough.

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