Double-sided cutting inserts for high feed milling

B - Operations – Transporting – 23 – C

Patent

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Details

B23C 5/20 (2006.01)

Patent

CA 2749711

A double-sided cutting insert with a plurality of indexable convex cutting edges can have a top face and a bottom face, at least three convex cutting edges on each face connected by at least three nose corners, at least three peripheral side surfaces extending from each face toward a virtual middle plane; and a common lateral seating surface on each peripheral side surface. Each convex cutting edge can have at least a curved cutting edge region, and can further have a primary substantially straight cutting edge region intermediate the curved cutting edge region and the nose corner. Each peripheral side surface can further have a primary planar facet associated with the primary substantially straight cutting edge, and each face may also be single-handed in same direction.

L'invention porte sur un insert de coupe à double côté pourvu d'une pluralité de bords de coupe convexes amovibles pouvant comprendre une face supérieure et une face inférieure, au moins trois bords de coupe convexes sur chaque face reliés par au moins trois coins de protection, au moins trois surfaces latérales périphériques s'étendant à partir de chaque face vers un plan intermédiaire virtuel ; et une surface d'appui latérale commune sur chaque surface latérale périphérique. Chaque bord de coupe convexe peut comprendre au moins une région de bord de coupe incurvée, et peut en outre comprendre une première région de bord de coupe sensiblement rectiligne intermédiaire entre la région de bord de coupe incurvée et le coin de protection. Chaque surface latérale périphérique peut en outre comprendre une première facette plane associée au premier bord de coupe sensiblement rectiligne, et chaque face peut également être seule dans la même direction.

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