Abstract: A generally square-shaped indexable cutting insert with four cutting edges for mounting in milling cutters for either slotting operations or for left-hand and right-hand face milling of right-angled corners in a metal workpiece. The cutting edge is parallel to the bottom surface and has a primary cutting edge extending between two wipers, each wiper being adjacent a corner edge. A first relief surface adjacent the primary cutting edge has a first relief angle and a second relief adjacent the two wipers has a second relief angle that is greater than the first relief angle. The first relief surface has a width dimension measured perpendicularly to the cutting edge that has a minimum value proximal to the two wipers and a maximum value at a central region of the cutting edge.

Abstract: An indexable cutting insert for use in a milling cutter. The cutting insert having four identical side surfaces extending between generally square shaped top and bottom surfaces with two diametrically opposite protuberances extending away from each other in a top or bottom view of the cutting insert. The cutting insert has eight identical major and minor cutting edges. The milling cutter having the general form of a circular disk with a plurality of the cutting inserts releasably mounted in insert pockets angularly around the periphery of the cutter. The cutting inserts are arranged to produce a profile on a workpiece having a central straight section and two beveled sections on either side of the central straight section.

Abstract: The present invention provides a replaceable cutting insert for use in a cutting tool. The cutting insert has a recess with flat and non-coplanar side surfaces on either side of the recess. The cutting insert is retained in an insert pocket of the cutting tool by three-point contact between contact edges of the pocket and points on the side edges of the recesses on two adjacent side surfaces of the insert.

Abstract: An indexable cutting insert for use in a milling cutter. The cutting insert having four identical side surfaces extending between generally square shaped top and bottom surfaces with two diametrically opposite protuberances extending away from each other in a top or bottom view of the cutting insert. The cutting insert has eight identical major and minor cutting edges. The milling cutter having the general form of a circular disk with a plurality of the cutting inserts releasably mounted in insert pockets angularly around the periphery of the cutter. The cutting inserts are arranged to produce a profile on a workpiece having a central straight section and two beveled sections on either side of the central straight section.

Abstract: A generally square-shaped indexable cutting insert with four cutting edges for mounting in milling cutters for either slotting operations or for left-hand and right-hand face milling of right-angled corners in a metal workpiece. The cutting edge is parallel to the bottom surface and has a primary cutting edge extending between two wipers, each wiper being adjacent a corner edge. A first relief surface adjacent the primary cutting edge has a first relief angle and a second relief adjacent the two wipers has a second relief angle that is greater than the first relief angle. The first relief surface has a width dimension measured perpendicularly to the cutting edge that has a minimum value proximal to the two wipers and a maximum value at a central region of the cutting edge.

Abstract: The present invention provides a replaceable cutting insert for use in a cutting tool. The cutting insert has a recess with flat and non-coplanar side surfaces on either side of the recess. The cutting insert is retained in an insert pocket of the cutting tool by three-point contact between contact edges of the pocket and points on the side edges of the recesses on two adjacent side surfaces of the insert.