Patent · US Expired

Laser welding device and method

US7319204B2 · kind B2 · utility

3Cited by

11References

24Claims

0Family size

Assignee

TRUMPF Laser GmbH + Co. KG · DE

Inventors

Peter Schafer · Pfungstadt, DE
Frank Faisst · Schramberg, DE
Martin Huonker · Rottweil, DE
Richard A. Petersen · Hudson, US

Key dates

Filing date	Nov 17, 2005
Grant date	Jan 15, 2008
Priority date	—
Expiry date	Nov 17, 2025

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB23K26/702
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A laser welding device includes a laser that generates a laser beam, an optics, and a limiting apparatus. The optics has a focal length of at least 200 nm and being configured to focus the laser beam onto a processing zone of a workpiece. The limiting apparatus limits a mixture of welding gases and heated ambient air, produced during laser welding, within the laser beam to a region that is less than the focal length from a surface of the workpiece.

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