Cutting insert

B - Operations – Transporting – 23 – C

Patent

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Details

B23C 5/10 (2006.01) B23C 5/20 (2006.01)

Patent

CA 2263833

A cutting insert for mounting in a cutting tool, comprises a cutting head portion with a substantially arcuate cutting edge and a substantially trapezoidal mounting body portion integrally formed therewith. The mounting body portion has substantially planar upper and lower surfaces and substantially straight side surfaces converging in the direction away from the cutting head portion. The entire cutting edge of the cutting head portion lies on a sphere and defines an arc substantially less than 90~, the cutting heat portion having an imaginary chordal plane passing through peripheral ends of the arc. The side surfaces of the mounting body portion are directed substantially radially with respect to a center of the sphere and are substantially shorter than the length of the chordal plane.

L'invention concerne une plaquette de coupe amovible destinée à être montée dans un outil de coupe, et qui comprend une partie tête à bord de coupe sensiblement arqué ainsi qu'un corps de montage trapézoïdal faisant partie intégrante de cette dernière. Le corps de montage comprend des surfaces inférieure et supérieure sensiblement planes et des surfaces latérales sensiblement rectilignes convergentes à l'opposé de la partie tête de coupe. L'intégralité du bord de coupe de la tête de coupe se trouve dans une sphère et définit un arc sensiblement inférieur à 90·, la partie tête de coupe ayant un plan chordal imaginaire passant par les extrémités périphériques de l'arc. Les surfaces latérales du corps de montage sont orientées sensiblement radialement par rapport au centre de la sphère et présentent une longueur sensiblement inférieure à celle du plan chordal.

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