A cutting insert

Details A cutting insert A cutting insert

B - Operations, Transporting

23

C

B23C 5/02 (2006.01) B23B 27/14 (2006.01) B23B 51/04 (2006.01) B26D 1/00 (2006.01)

Patent

CA 2163362

A cutting insert for use in a cutting tool has upper (2), lower (3) and side surfaces (4) and at least one cutting edge (10) formed at an intersection of the upper surface with the side surface thereof. A rake face (13) of the insert is formed with an undulated chip forming groove (15) extending along the cutting edge (10) and comprising a succession of alternating depressed (20) and raised portions (21). Each portion of the chip forming groove (15) is formed with a truncated top portion (22) of a width which is substantially less than a distance between two adjacent truncated top portions. The depressed (20) and raised portions (21) preferably extend in the direction perpendicular to the cutting edge (10), along the entire width of the chip forming groove.

Une pièce rapportée de coupe, utilisée dans un outil de coupe, comporte des surfaces supérieure (2), inférieure (3) et latérale (4) et au moins une arête de coupe (10) formée à l'intersection des surfaces supérieure et latérale. Une face de coupe orthogonale (13) de cette pièce présente un sillon ondulé (15), destiné à former des copeaux et disposé le long de l'arête de coupe (10), qui comprend une succession de parties en creux (20) et en relief (21) dont chacune est dotée d'un sommet tronqué (22) de largeur nettement inférieure à une distance séparant deux sommets tronqués adjacents. Les parties en creux (20) et en relief (21) suivent de préférence une direction perpendiculaire à l'arête de coupe (10) sur toute la largeur du sillon ondulé destiné à former des copeaux.

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