Patent · US Expired

Cutting insert for a rotary cutting tool

US5232320A · kind A · utility

49Cited by
6References
9Claims
0Family size

Inventors

Key dates

Filing dateNov 26, 1991
Grant dateAug 3, 1993
Priority date
Expiry dateNov 26, 2011

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10T408/909
  • WIPO fieldMachine tools
  • WIPO sectorMechanical engineering

Abstract

A cutting insert for a rotary cutting tool comprises a body of tungsten carbide, with layers of polycrystalline diamond on opposite sides of the body. The diamond layers overlap across the centre-line of the insert. The cutting insert is shaped for retention at the end of the rotary cutting tool so that the first and second sides of the cutting insert are substantially parallel to the axis of the cutting tool, and the diamond layers are offset from one another across the width of the body so that they define the lips or major cutting edges of the cutting tool.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.