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US 7,094,007 B2Granted
Tangential cutting insert and milling cutter
AssigneeIscar, Ltd.
InventorsAmir Satran, Danny Dagan
Life of this patent
Estimating the term…
Abstract
A tangential milling cutting insert having two identical opposing end surfaces with two identical opposing major side surfaces of a generally parallelogrammatic shape and two identical opposing minor side surfaces extending between them. Each end surface has a peripheral edge containing cutting edges and four corners of which two diagonally opposed corners are lowered and the other two are raised. Each end surface is provided with an abutment member having an abutment surface. In each cross section of the cutting insert taken in a plane parallel to a minor plane of the cutting insert, the abutment surface is closer to the median plane than a respective leading section of a major cutting edge.
Claims23
A tangential cutting insert, for use in a milling cutter, comprising:
- two identical opposing end surfaces of a generally rectangular shape in an end view of the cutting insert;
- a peripheral side surface extending between the two opposing end surfaces, the peripheral side surface comprising two identical opposing major side surfaces of a generally parallelogrammatic shape, two opposing minor side surfaces and corner side surfaces located between adjacent major and minor side surfaces;
- and
- a peripheral edge formed at the intersection of each end surface and the peripheral side surface, two sections of each peripheral edge constituting cutting edges;
- each end surface having four corners, two diagonally opposed lowered corners and two diagonally opposed raised corners, the lowered corners being closer to a median plane M of the cutting insert than the raised corners;
- each cutting edge comprising a major cutting edge formed by the intersection of a given major side surface with a given end surface;
- each end surface being provided with an abutment member having an abutment surface;
- wherein, in each cross section of the cutting insert taken in a plane that is parallel to a minor plane P1 of the cutting insert and passes through both a leading section of a major cutting edge and an abutment surface associated with a particular end face, the abutment surface is closer to the median plane M than the leading section;
- and
- wherein the end surfaces differ in shape from both the minor side surfaces and the major side surfaces.
7 more elements
A milling cutter comprising:
- a cutting insert comprising:
- two identical opposing end surfaces of a generally rectangular shape in an end view of the cutting insert;
- a peripheral side surface extending between the two opposing end surfaces, the peripheral side surface comprising two identical opposing major side surfaces of a generally parallelogrammatic shape, two opposing minor side surfaces and corner side surfaces located between adjacent major and minor side surfaces;
- and
- a peripheral edge formed at the intersection of each end surface and the peripheral side surface, two sections of each peripheral edge constituting cutting edges;
- each end surface having four corners, two diagonally opposed lowered corners and two diagonally opposed raised corners, the lowered corners being closer to a median plane M of the cutting insert than the raised corners;
- each cutting edge comprising a major cutting edge formed by the intersection of a given major side surface with a given end surface;
- each end surface being provided with an abutment member having an abutment surface;
- wherein, in each cross section of the cutting insert taken in a plane that is parallel to a minor plane P1 of the cutting insert and passes through both a leading section of a major cutting edge and an abutment surface associated with a particular end face, the abutment surface is closer to the median plane M than the leading section;
- and
- wherein the end surfaces differ in shape from both the minor side surfaces and the major side surfaces;
- and
- a cutter body having at least one insert pocket in which the at least one cutting insert is retained, the at least one insert pocket comprising adjacent side and rear walls generally transverse to a base, the rear wall being generally convex;
- the side wall being provided with an axial location surface tat abuts a given minor side surface of the at least one cutting insert at a given axial abutment region;
- the rear wall being provided with two protruding tangential location surfaces, located on either side of a central region of the rear wall, a first of the two tangential location surfaces abuts a first tangential abutment surface located on the abutment surface of the at least one cutting insert, a second of the two tangential location surfaces abuts a second tangential abutment surface located on the abutment surface.
12 more elements
A tangential cutting insert comprising:
- two identical opposing end surfaces, each end surface having four corners, two diagonally opposed lowered corners and two diagonally opposed raised corners, the lowered corners being closer to a median plane M of the cutting insert than the raised corners, each end surface being provided with an abutment member having an abutment surface;
- a peripheral side surface extending between the two opposing end surfaces, the peripheral side surface comprising two identical opposing major side surfaces and two opposing minor side surfaces;
- and
- a peripheral edge formed at the intersection of each end surface and the peripheral side surface;
- wherein, in each cross section of the cutting insert taken in a plane that is parallel to a minor plane P1 of the cutting insert and passes through both a leading section of a major cutting edge and an abutment surface associated with a particular end face, the abutment surface is closer to the median plane M than the leading section;
- and
- wherein the end surfaces differ in shape from both the minor side surfaces and the major side surfaces.
4 more elements
Dependencies are inferred from the claim text.