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:
Mar. 09, 2004
Filed:
Mar. 01, 2002
Applicant:
Inventor:
Roberto Menin, Grugliasco, IT;
Assignee:
Comau SPA, Grugliasco, IT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 2/600 ;
U.S. Cl.
CPC ...
B23K 2/600 ;
Abstract
Welding of two or more steel sheets, at least one of which has a protective layer of a material with a low vaporization temperature, is carried out by directing a laser beam on two overlapped flanges of the sheets, which are clamped in position during welding by means of clamping devices. These clamping devices are able to hold the flanges to be welded in a slightly spaced apart position from each other, so as to create a gap, which does not jeopardize the possibility of carrying out the welding while enabling evacuation of the vapors of the protective material, which are generated during welding.