摘要:
A polygonal indexable cutting insert has a chip breaker with a backwall having a main portion spaced from the cutting edge and including a plurality lands as to deflect chips in a direction toward the center of the insert.
摘要:
A method for making a compact for a densified cutting insert, an easily machinable material is cut to the desired form, a plastic molding material having specific properties is contacted with the shaped machinable material, hardened to form a mold, and the resulting mold is used to form a compact for a cutting insert having the desired configuration which compact may be subsequently densified.
摘要:
A polygonal indexable cutting insert has a chip breaker with a backwall arranged in a sinuous path with the portion approaching the corner having a shallower slope than the main portion.
摘要:
An ultra light duty polygonal lay down indexable insert having a scalloped shaped island symmetrically disposed on the top or bottom surface of the insert.
摘要:
An indexable turning insert has main upper and lower surfaces of polygonal shape joined by side surfaces. Insert corners are defined by the intersection of insert sides at each corner of the polygonal surfaces, insert corners having a curve of relatively small radius defining the nose of the corner. The inserts are at least partially symmetrical and have a plurality of identical cutting edges. Adjacent the corner nose of an identical cutting edge are wiping surfaces comprising at least one curved segment joining the insert corner radius and defined by a radius larger than the corner radius and at least one flat segment intersecting the insert side at a shallow angle.
摘要:
In a ceramic indexable cutting insert, an edge strengthening land extends rearwardly of a beveled cutting edge at an angle of from about 80 to about 100 degrees with respect to the peripheral side surface, and a grooved recess extents rearwardly and along the edge strengthening land to direct chips upwardly and outwardly away from the insert and the cutting edge. In one embodiment of the present invention intended for conditions of heavy depth of cut, enhanced edge strength is sacrificed and an edge strengthened land is not provided.
摘要:
An indexable, on edge, reversible cutting insert for use with a boring toolhead, comprising a body having parallelogram shaped top and bottom seating faces equipped with an off center aperture there through, and at least one cutting face. The cutting face is equipped with a bidirectional chip breaker groove on each side of the cutting face to define an island, each side groove having a slotting, progressively deepening recess extending along the edge of said cutting face, said groove presenting an increasing incident angled and having a positive rake and an axial rake around the edge of the cutting face, which together form an obtuse angle, said groove forming at least two cutting corners diagonally apposed to each other. Each cutting corner is comprised of a scalloped radius formed in the island which intersects a chip directional flat formed in the groove, at an obtuse angle to form a bidirectional pocket area.
摘要:
A high feed/heavy depth of cut indexable insert for the aluminum wheel turning market featuring a cutting edge with higher elevation than the central island chipbreaker forms.
摘要:
In polygonal cutting insert, each of the respective parallel faces of the insert include a single chip breaker scallop positioned at each corner wherein the scallop is formed as segments of conical frustum having a particular orientation.