Patent · US Expired

Method for laser welding a workpiece

US7057132B2 · kind B2 · utility

2Cited by

14References

20Claims

0Family size

Assignee

Siemens Aktiengesellschaft · DE

Inventors

Thomas Beck · Catonsville, US
Nigel-Philip Cox · Berlin, DE
Silke Settegast · Berlin, DE
Rolf Wilkenhoener · Berlin, DE

Key dates

Filing date	Dec 20, 2001
Grant date	Jun 6, 2006
Priority date	—
Expiry date	Feb 10, 2022

Classification

Technology area (CPC F)Mechanical Engineering; Lighting; Heating
CPC primaryF05D2230/232
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A method is used for laser welding a workpiece along a welding line. At least two laser beams, which are offset in relation to one another, are guided along the welding line by moving an optical deflector unit. The method may be used for welding closure pins and casting induced openings of gas turbine blades.

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