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US 7,597,510 B2Granted
Indexable cutting insert and a cutting tool having such a cutting insert
AssigneeSandvik Intellectual Property Aktiebolag
InventorGöran Lundvall
Life of this patent
Estimating the term…
Abstract
An indexable cutting insert has at least first and second cutting edges and first and second edge-location surfaces associated with the first and second cutting edges, respectively. The insert-manufacturing procedure includes forming the first edge-location surface with reference to the first cutting edge, and then forming the second edge-location surface with reference to the second cutting edge. There results an indexable cutting insert having at least two spaced-apart chip-removing cutting edges and a plurality of location surfaces adapted to engage a base body for determining the spatial positions of respective cutting edges, wherein each location surface determines the spatial position of no more than one of the cutting edges.
Claims20
An indexable cutting insert including top and bottom surfaces intersected by clearance surfaces, comprising:
- first and second spaced-apart cutting edges;
- and
- first and second support surfaces for determining the spatial positions of the first and second cutting edges in relation to a tool,
- wherein the first support surface faces away from the first cutting edge and is machined so as to be spaced at a predetermined distance therefrom, and the second support surface faces away from the second cutting edge and is separately machined relative to the first support surface so as to be spaced from the second cutting edge at the predetermined distance
- wherein the first and second cutting edges being disposed on the top surface, the bottom surface of the insert being serrated and including a first set of spaced-apart grooves, and a second set of spaced-apart grooves, each groove of the first and second sets including flank surfaces which constitute the first and second support surfaces, and
- wherein each groove includes opposite ends, and each groove increases in depth from one end to the other end.
3 more elements
An indexable cutting insert including top and bottom surfaces intersected by clearance surfaces, comprising:
- first and second spaced-apart cutting edges;
- and
- first and second support surfaces for determining the spatial positions of the first and second cutting edges in relation to a tool,
- wherein the first support surface faces away from the first cutting edge and is machined so as to be spaced at a predetermined distance therefrom, and the second support surface faces away from the second cutting edge and is separately machined relative to the first support surface so as to be spaced from the second cutting edge at the predetermined distance
- wherein the first and second cutting edges being disposed on the top surface, the bottom surface of the insert being serrated and including a first set of spaced-apart grooves, and a second set of spaced-apart grooves, each groove of the first and second sets including flank surfaces which constitute the first and second support surfaces, and
- wherein each groove includes opposite ends and has a generally V-shaped cross section, each groove having a width increasing from one end to the other end.
3 more elements
A cutting tool comprising:
- a basic body having an insert seat;
- and
- an indexable cutting insert disposed on the seat, the insert including:
- first and second spaced-apart cutting edges;
- and
- first and second support surfaces for determining the spatial positions of the first and second cutting edges in relation to the basic body, the first support surface faces away from the first cutting edge and is machined so as to be spaced at a predetermined distance therefrom, and the second support surface faces away from the second cutting edge and is separately machined relative to the first support surface so as to be spaced from the second cutting edge at the predetermined distance,
- wherein the insert seat comprises a first serration surface mated with a second serration surface of the insert, the first serration surface including parallel ridges, and the second serration surface including parallel ridge-receiving grooves, wherein the number of ridges on the first serration surface is no greater than one-half of the number of grooves of the second serration surface, and
- wherein (i) each groove includes opposite ends, and each groove increases in depth from one end to the other end or (ii) each groove includes opposite ends and has a generally V-shaped cross section, each groove having a width increasing from one end to the other end.
5 more elements
An indexable cutting insert including top and bottom surfaces intersected by clearance surfaces, comprising:
- first and second spaced-apart cutting edges;
- and
- first and second support surfaces for determining the spatial positions of the first and second cutting edges in relation to a tool,
- wherein the first support surface faces away from the first cutting edge and is machined so as to be spaced at a predetermined distance therefrom, and the second support surface faces away from the second cutting edge and is separately machined relative to the first support surface so as to be spaced from the second cutting edge at the predetermined distance wherein the first and second cutting edges being disposed on the top surface, the bottom surface of the insert being serrated and including a first set of spaced-apart grooves, and a second set of spaced-apart grooves, each groove of the first and second sets including flank surfaces which constitute the first and second support surfaces, and
- wherein the serrated bottom surface includes a plurality of groove pairs, each groove pair consisting of one groove of the first set of spaced-apart grooves and an adjacent one groove of the second set of spaced-apart grooves,
- wherein a spacing between the one groove of the first set of spaced-apart grooves and the adjacent one groove of the second set of spaced-apart in each groove pair is a first distance,
- wherein a spacing between adjacent groove pairs is a second distance, and
- wherein the first distance is not equal to the second distance.
5 more elements
Dependencies are inferred from the claim text.