The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 28, 2001
Filed:
May. 05, 1999
Applicant:
Inventor:
Mark Faerber, Hamburg, DE;
Assignee:
AGA Aktiebolag, , SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 2/620 ; B23K 2/632 ;
U.S. Cl.
CPC ...
B23K 2/620 ; B23K 2/632 ;
Abstract
A method for laser welding a metal workpiece comprises providing a process gas consisting essentially of helium and at least 0.5% by volume nitrogen and flushing a weld point with the process gas. The process gas contains no argon or neon and the metal workpiece includes aluminum or an aluminum alloy.