Milling cutting insert

B - Operations – Transporting – 23 – C

Patent

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Details

B23C 5/22 (2006.01) B23C 5/00 (2006.01) B23C 5/28 (2006.01)

Patent

CA 2231875

A milling cutting insert (1, 30, 47, 48) including a substantially prismatic body portion (2, 31) having an upper surface (3, 32), a lower surface (4, 33), side surfaces (5, 7-9, 34) and at least one protruding nose-like cutting comer (10A, 37A) having a rake surface (15, 40) merging with the upper surface and a wraparound relief flank surface (16, 41) having portions merging respectively with adjacent side surface meeting at the cutting corner (20, 44), front (17, 38) and side cutting edges (19, 39) formed by the intersection between the rake surface (15, 40) and the wraparound relief flank surface (16, 41), the cutting edges protruding outwardly relative to their respective side surfaces and being elevated relative to the upper surface with at least the side cutting edge (19, 39) sloping towards the lower surface.

Plaquette de coupe pour fraisage (1, 30, 47, 48), dont une partie du corps est essentiellement prismatique (2, 31), possédant une surface supérieure (3, 32), une surface inférieure (4, 33), des surfaces latérales (5, 7-9, 34) et, au moins, un coin de coupe (10A, 37A) en saillie comportant une face de coupe (15, 40) qui fusionne avec la surface supérieure et une face de dépouille enveloppante (16, 41) dont des parties fusionnent respectivement avec une surface latérale adjacente se rencontrant au coin de coupe (20, 44), aux bords de coupe frontaux (17, 38) et latéraux (19, 39) constitués par l'intersection entre la face de coupe (15, 40) et la face de dépouille (16, 41) enveloppante. Les bords de coupe font saillie vers l'extérieur par rapport à leurs surfaces latérales respectives et sont élevés par rapport à la surface supérieure, tandis qu'au moins le bord de coupe latéral (19, 39) est incliné vers la surface inférieure.

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