Patent · US Expired

Process for the manufacture of a metallic composite wire

US5129572A · kind A · utility

13Cited by

3References

5Claims

0Family size

Assignee

W. C. Heraeus GmbH · DE

Inventors

Richard Keilberth · Kleinheubach, DE
David Francis Lupton · Gelnhausen, DE

Key dates

Filing date	Mar 5, 1991
Grant date	Jul 14, 1992
Priority date	—
Expiry date	Mar 5, 2011

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/12875
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A rod made of a hard material is inserted into a pipe made of a relatively soft material, and a two-element arrangement having an intermediate size is obtained by hot-rolling and drawing. In these steps, the cross section is reduced by at least 50%. Subsequently, another pipe of the soft material is fitted onto the two-element arrangement, and the so-obtained three-element arrangement is adjusted to its final size by means of hot or cold rolling followed by cold drawing.

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