Slotting cutter and cutting insert therefor
AssigneeSandvik Intellectual Property AB
InventorWilly Aström
Life of this patent
Estimating the term…
Abstract
A slotting cutter includes a circular disc having an outer periphery along which a plurality of chip channels are formed which define respective seats for receiving respective index able cutting inserts. Each insert includes a planar bottom side. Either the seat or the bottom side has a male locator portion, and the other of the seat and the bottom side has a female locator portion which receives the male locator portion to define therewith and insert-locating structure. The male and female locator portions are offset laterally from a center plane of the insert oriented perpendicular to an axis of rotation of the disc. Alternating ones of the insert-locating structures are disposed on respective opposite sides of the center plane.
Claims14
Slotting cutter, comprising a circular disc along an outer periphery of which a plurality of tangentially spaced chip channels are formed, which channels house respective seats for indexable cutting inserts;
- each insert having a width which is larger than a thickness of the disc in order that the inserts can mill a groove delimited by two parallel side surfaces and a bottom during the milling of a workpiece;
- each cutting insert having means for dividing material which is separated from the bottom of the cutting groove into two or more partial chips;
- each cutting insert having a generally plane bottom side;
- one of the seat and the bottom side having a male portion, and the other side of the seat and the bottom side having a female locator portion receiving the male locator portion to define therewith an insert-locating structure;
- the male and female locator portions being offset laterally from a center plane of the insert oriented perpendicular to an axis of rotation of the disc;
- alternating ones of the insert-locating structures being disposed on respective opposite sides of the center plane.
A cutting insert for a slotting cutter comprising a body forming two opposing major cutting edges;
- each cutting edge including means for dividing a cut chip into a plurality of partial chips;
- said insert including a bottom side having a locator portion in the form of a male portion or a female portion which is laterally offset relative to a center plane of the body which bisects the cutting edges;
- wherein the means for dividing the chip comprises a countersink formed in each cutting edge.
A cutting insert for a slotting cutter comprising a body forming two opposing major cutting edges;
- each cutting edge including means for dividing a cut chip into a plurality of partial chips;
- said insert inlcuding a bottom side having a locator portion in the form of a male portion or a female portion which is laterally offset relative to a center plane of the body which bisects the cutting edges;
- wherein the body includes a pair of side surfaces interconnecting the cutting edges, the side surfaces being spaced apart by a first distance adjacent the cutting edges and spaced part by a second distance in a central region between the cutting edges, the second distance being shorter than the first distance.
Dependencies are inferred from the claim text.