Milling cutting insert
AssigneeIscar, Ltd.
InventorsAmir Satran, Rafael Margulis
Life of this patent
Estimating the term…
Abstract
A milling cutting insert including a substantially prismatic body portion having an upper surface, a lower surface, side surfaces and at least one protruding nose-like cutting corner, having a rake surface merging with the upper surface and a wraparound relief flank surface having portions merging respectively with adjacent side surface meeting at the cutting corner, front and side cutting edges formed by the intersection between the rake surface and the wraparound relief flank surface, the cutting edges protruding outwardly relative to their respective side surface surfaces and being elevated relative to the upper surface with at least the side cutting edge sloping towards the lower surface.
Claims15
A milling cutting insert comprising a substantially prismatic body portion having an upper surface, a lower surface, side surfaces and at least one protruding nose-like cutting corner having a rake surface merging with said upper surface and a wraparound relief flank surface having portions merging respectively with adjacent side surfaces meeting at said cutting corner and protruding outwardly therefrom, front and side cutting edges formed by the intersection between said rake surface and said wraparound relief flank surface, said cutting edges protruding outwardly relative to their respective side surfaces and adjacent insert side edges defined by the intersection of said upper surface and said side surfaces, said cutting edges being elevated relative to said upper surface with at least said side cutting edge sloping towards said lower surface.
A milling cutting insert comprising a substantially prismatic body portion having an upper surface, a lower surface, side surfaces and at least one protruding nose-like cutting corner having a rake surface merging with said upper surface and a wraparound relief flank surface having portions merging respectively with adjacent side surfaces meeting at said cutting corner, front and side cutting edges formed by the intersection between said rake surface and said wraparound relief flank surface, said cutting edges protruding outwardly relative to their respective side surfaces and being elevated relative to said upper surface with at least said side cutting edge sloping towards said lower surface, wherein
- the cutting insert has a substantially square shape in a top view and includes four indexable symmetrical cutting corners each having first and second cutting edges including first adjacent cutting edge components subtending an included angle of slightly greater than 90.degree. therebetween and second cutting edge components subtending an included angle of slightly less than 180.degree. relative to their respective adjacent first cutting edge components.
A milling cutting insert comprising a substantially prismatic body portion having an upper surface, a lower surface, side surfaces and at least one protruding nose-like cutting corner, said cutting corner having:
- a rake surface merging with said upper surface;
- relief flank surface portions which merge with respective adjacent side surfaces and protrude outwardly with respect to said respective adjacent side surfaces;
- front and side cutting edges formed by the intersection between said rake surface and said relief flank surface portions, said cutting edges protruding outwardly relative to their respective side surfaces and also relative to adjacent insert side edges defined by an intersection of said upper surface and said side surfaces, said cutting edges being elevated relative to said upper surface with at least said side cutting edge sloping towards said lower surface.
Dependencies are inferred from the claim text.