Multiple groove chip control for cutting insert

Details Multiple groove chip control for cutting insert Multiple groove chip control for cutting insert

B - Operations, Transporting

23

B

B23B 27/22 (2006.01) B23B 27/14 (2006.01) B23P 15/28 (2006.01)

Patent

CA 2445122

A cutting insert (10) having an upper (14) and a lower base face (16); side walls (18) adjoining the faces; at least one cutting edge (22) formed at an intersection of the upper face and a side wall; and at least one cutting corner (20) formed at an intersection of an adjacent pair of side walls. A chip control structure (12) is formed in the upper face (14) extending along the cutting edge (22) from the cutting corner (20) for at least an effective cutting length of the cutting edge. A land surface (26) spaces the chip control structure (12) from the cutting edge (22). The chip control structure (12) includes multiple radially spaced grooves (36) wherein the grooves of the chip control structure (12) have a depth generally decreasing from the land (26) toward the center of the insert (10).

Une plaquette de coupe (10) comporte une face de base supérieure (14) et inférieure (16) ; des parois latérales (18) contiguës aux faces; au moins un bord coupant (22) formé à une intersection de la face supérieure et d'une paroi latérale; et au moins un angle de coupe (20) formé à une intersection d'une paire adjacente de parois latérales. Une structure de régulation des copeaux (12) est formée dans la face supérieure (14) s'étendant le long du bord coupant (22) depuis l'angle de coupe (20) sur une longueur efficace du bord coupant. Une surface d'appui (26) espace la structure de régulation des copeaux (12) du bord coupant (22). La structure de régulation des copeaux (12) comporte plusieurs gorges espacées radialement (36) dont la profondeur décroît généralement de la surface d'appui (26) vers le centre de la plaquette de coupe (10).

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