Cutting insert for turning and milling
AssigneeSandvik AB
InventorGünter Wermeister
Life of this patent
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Abstract
A cutting insert comprises first and second polygonally-shaped main faces arranged substantially parallel to one another, and a side face structure interconnecting the first and second main faces to define a peripheral edge. At least the first main face includes at least one projection extending to the peripheral edge, the projection formed by: a portion of the first main surface (defining a relief surface), a portion of the side face structure (defining a rake surface), and a portion of the peripheral edge (defining a cutting edge). The insert includes support surfaces defined by a portion of the second main face, and by portions of the side surface structure other than the rake surface.
Claims22
A cutting insert comprising first and second polygonally-shaped main faces arranged substantially parallel to one another, and a side face structure interconnecting the first and second main faces to define a peripheral edge, at least the first main face including at least one projection extending to the peripheral edge, the at least one projection comprised of:
- a portion of the first main surface, defining a relief surface,
- a portion of the side face structure, defining a rake surface, and
- a portion of the peripheral edge, defining a cutting edge;
- the insert including support surfaces defined by:
- a portion of the main surface, and portions of the side surface structure other than the rake surface.
A tool comprising a holder having at least one seat and a cutting insert disposed in the seat, the seat including a main stop face and two additional stop faces upstanding from the main stop face and together forming an angle in the range of 45°-135°, the cutting insert comprising first and second polygonally-shaped main faces arranged substantially parallel to one another, and a side face structure interconnecting the first and second main faces to define therewith a peripheral edge, at least the first main face including at least one projection extending to the peripheral edge, the insert mounted in the holder wherein:
- the second main face of the insert defining a support surface in contact with the main stop face,
- two mutually angled portions of the side face structure defining support surfaces in contact with the two additional stop faces, respectively,
- a portion of the first main face of the insert being arranged to define a relief surface,
- a portion of the side face structure arranged to define a rake surface, and
- a portion of the peripheral edge disposed at an intersection of the rake face and the relief face being arranged to define a cutting edge.
Dependencies are inferred from the claim text.