Patent · US Expired

Method of making metal cutting inserts having superhard abrasive bodies

US5598621A · kind A · utility

28Cited by

9References

18Claims

0Family size

Assignees

SMITH INTERNATIONAL, INC. · US
SANDVIK LTD · SE

Inventors

Peter Littecke · Huddinge, SE
Ronald B. Crockett · Payson, US
Anders Thelin · Sundbyberg, SE

Key dates

Filing date	May 22, 1995
Grant date	Feb 4, 1997
Priority date	—
Expiry date	May 22, 2015

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T408/81
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A metal cutting insert is made by performing a sintering operation to form a substrate having a longitudinal axis and superhard abrasive bodies bonded thereto at longitudinally spaced locations. The substrate and superhard bodies are sliced-through in directions perpendicular to the axis to form inserts having superhard body portions on both side surfaces of the insert.

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