Patent · US Expired

Electrode for resistance welding surface-treated sheets of steel and method of manufacturing such electrodes

US5021627A · kind A · utility

19Cited by

2References

14Claims

0Family size

Assignee

Hoesch Stahl AG · DE

Inventors

Bernhard Bersch · Dortmund, DE
Axel Fuchs · Richmond, US
Ralf Eck · Reutte, AT

Key dates

Filing date	Feb 12, 1990
Grant date	Jun 4, 1991
Priority date	—
Expiry date	Feb 12, 2010

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K11/3009
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention concerns an electrode for the resistance welding of sheets of surface-treated steel. A thin disk of high melting-point metal is permanently attached to the electrode's shaft or cap at the contact surface. The grain of the high melting-point metal is oriented at an angle to the axis of the electrode and the rolled-out material has a flattened grain.

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