Patent · US Expired

Method and arrangement for gas metal arc welding

US6630646B1 · kind B1 · utility

1Cited by

5References

12Claims

0Family size

Inventors

Per-Mikael Aberg · Uppsala, SE
Lars Bengtsson · Kungsbacka, SE
Anders Allansson · Kumla, SE

Key dates

Filing date	May 18, 2001
Grant date	Oct 7, 2003
Priority date	—
Expiry date	May 18, 2021

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K9/1006
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

The invention relates to a method for preventing the welding electrode sticking in the contact nozzle and a welding power source of the inverter type for MIG/MAG with these characteristics. A short fading of the current takes place before the welding current is switched off.

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