Double-sided cutting inserts for high feed milling

Abstract

A double-sided cutting insert with a plurality of indexable convex cutting edges can have a top face and a bottom face, at least three convex cutting edges on each face connected by at least three nose corners, at least three peripheral side surfaces extending from each face toward a virtual middle plane; and a common lateral seating surface on each peripheral side surface. Each convex cutting edge can have at least a curved cutting edge region, and can further have a primary substantially straight cutting edge region intermediate the curved cutting edge region and the nose corner. Each peripheral side surface can further have a primary planar facet associated with the primary substantially straight cutting edge, and each face may also be single-handed in same direction.

Description

technical field [0001] The present disclosure relates to double-sided cutting inserts. The double-sided cutting insert exhibits desirable edge strength and unique edge geometry, thereby allowing milling operations at relatively high feed rates and can be used in face milling, slot milling, plunge milling and dressing operations . Background technique [0002] Carbide inserts or other types of inserts are well known in the art. Many indexable cutting inserts are single-handed, either right-handed or left-handed, due to geometrical constraints in rotary machining operations where the tool abuts the Rotate on the stationary workpiece being ground. [0003] In recent years, in the metal processing industry, there has been an increasing need to reduce costs and increase productivity. From the observation of geometric structure, two common measures in the design of indexable carbide inserts are: designing double-sided cutting inserts, or designing more available cutting edges ...

AI Technical Summary

Problems solved by technology

The double-sided cutting inserts described above provide more indexable cutting edges, but the cutting edges of these inserts are less suitable for high-speed machining than the cutting edges of the single-sided inserts described in the aforementioned U.S. Patent Application Publication No. US2007 / 0189864. It is less advisable to give milling operations

Images