Cutting tools, cutting tool holders and cutting inserts therefor

摘要

A cutting element for use in a cutting operation, comprising a cutting edge (CE) capable of cutting out material from a workpiece during the operation, to form therein a workpiece corner of angle alpha. There exists at least one view of the cutting edge in which a portion of the cutting edge is delimitable by a first (L1) and a second (L2) line oriented tangentially to the portion of the cutting edge portion at respective tangency points A and B. The lines form therebetween a cutting angle corresponding to the workpiece corner angle alpha and have a vertex 0. For a bisector of the cutting angle intersecting the portion of the cutting edge at the point C, the projection C of the point C of the portion of the cutting edge on a line OL passing through the vertex 0 perpendicularly to the plane of the one view is located between projections A1 and B′ of the respective points A and B of the portion of the cutting edge on the line OL.

主权项

1. A cutting element for use in a cutting operation comprising:
a cutting edge capable of cutting out material from a workpiece during said operation, to form therein a workpiece corner angle (α); at least one view of said cutting edge in which a portion of the cutting edge is delimitable by a first and a second tangency lines oriented tangentially to said portion of the cutting edge portion at respective first and second tangency points (A) and (B); the tangency lines forming, at the intersection thereof a vertex (O), and forming therebetween a cutting angle (AOB) corresponding to the workpiece corner angle (α); a virtual bisector of said cutting angle intersecting the portion of said cutting edge at a third point (C); a virtual line (OL) passing through said vertex (O) perendicularly to the plane of said one view; and an image projection (C′) of the point (C) on line (OL) is located between projections (A′) and (B′) of the respective tangency points (A) and (B) of said portion of the cutting edge on said line (OL).