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:
Jan. 30, 1996
Filed:
Aug. 10, 1994
Applicant:
Inventor:
Alfward Farwer, Meerbusch, DE;
Assignee:
Messer Griesheim GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B23K / ;
U.S. Cl.
CPC ...
21912164 ; 21912184 ;
Abstract
In the laser welding of aluminum, argon, helium and mixtures thereof are used as protective gases. To improve the welding behavior, 80 vpm to 250 vpm, preferably 120 vpm to 180 vpm of nitrogen, nitrous oxide or nitrogen/nitrous oxide mixture are added to the protective gas.