Back to results
US 5,725,334 AGranted
Cutting insert
AssigneeWidia GmbH
InventorJose Agustin Paya
Life of this patent
Estimating the term…
Abstract
A cutting insert is formed with a plurality of cutting edges, a cutting surface spaced inward from the cutting edges, and a continuous land having an outer periphery at the cutting edges and a curved inner periphery spaced inward therefrom and outwardly delimiting the cutting surface. The land dips at the inner periphery generally centrally of each edge toward the surface and thereby forms generally centrally of each edge at the inner periphery a region of minimal height above the surface.
Claims15
A cutting insert formed with:
- a plurality of cutting edges each having a center;
- a cutting surface spaced inward from the cutting edges;
- and
- a continuous land having an outer periphery at the cutting edges and a wholly curved and nonstraight inner periphery spaced inward therefrom and outwardly delimiting the cutting surface, the land dipping at the inner periphery generally at the center of each edge toward the surface and thereby forming generally at the center of each edge at the inner periphery a region of minimal height above the surface and having a varying width that is at its minimum value at the center of each edge.
1 more element
A cutting insert formed with:
- a plurality of cutting edges each having a center;
- a cutting surface spaced inward from the cutting edges;
- and
- a continuous land having an outer periphery at the cutting edges and a wholly curved and nonstraight inner periphery spaced inward therefrom and outwardly delimiting the cutting surface, the land dipping at the inner periphery generally at the center of each edge toward the surface and thereby forming generally at the center of each edge at the inner periphery a region of minimal height above the surface, the land forming a varying negative angle at the cutting edge and having a varying width that is at its minimum value at the center of each edge.
1 more element
Dependencies are inferred from the claim text.