Double-sided cutting insert for drilling tool

Details Double-sided cutting insert for drilling tool Double-sided cutting insert for drilling tool

B - Operations, Transporting

23

B

B23B 51/02 (2006.01) B23B 27/14 (2006.01) B23B 51/04 (2006.01)

Patent

CA 2757975

A double-sided cutting insert (10) for a drilling tool includes a top side (11), a bottom side (12), and at least one side surface interconnecting the top side (11) and the bottom side (12) and forming at least one cutting edge (13a, 13b, 13c, 13d, 14a, 14b, 14c, 14d). The top side and the bottom side comprise a different external profile and chip groove (17,19) geometry and an identical inscribed circle (33), and each of the top side (11) and the bottom side (12) comprises four indexable cutting edges (13a, 13b, 13c, 13d, 14a, 14b, 14c, 14d).

L'invention porte sur un insert de coupe à double côté (10) pour un outil à percer, lequel insert comprend un côté supérieur (11), un côté inférieur (12) et au moins une surface latérale reliant mutuellement le côté supérieur (11) et le côté inférieur (12) et formant au moins une arête de coupe (13a, 13b, 13c, 13d, 14a, 14b, 14c, 14d). Le côté supérieur et le côté inférieur comprennent une géométrie de profil externe de rainure à copeaux (17, 19) différente et un cercle inscrit identique (33), et chacun du côté supérieur (11) et du côté inférieur (12) comprend quatre arêtes de coupe indexables (13a, 13b, 13c, 13d, 14a, 14b, 14c, 14d).

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