Patent ID: 6568383
Filing Date: 2003-05-27
Classification: B23D,B28D

Abstract:
A cutting tool, comprising a disc-shaped based member (1) having a central bore (3) and a plurality of segment-shaped cuffing regions (2) provided at a circumference of the base member (1) and separated from each other in a circumferential direction by recesses (4) which are open toward an outer contour of the base member (1) and extend radially through respective cuffing regions (2), each segment-shaped cuffing region (2) defining a section (A) of the base member (1) which is limited by two imaginary lines extending from a center of the base member (1) and passing through recesses (4) that separate the section defining cuffing region (2) from adjacent cuffing regions (2); and at least one elongate opening (5) located in each section (A) and extending radially along a section of an imaginary spiral line (D) extending from the center (C) of the base member (1), wherein a tangent (B) to a central region of the section of the imaginary spiral line (D), along which the elongate opening (5) extends, forms with a radius (R) of the base member (1) an angle (W) from 7Â° to 15Â°.