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:
Sep. 22, 2009
Filed:
Dec. 10, 2002
Massimo Maura, Ceccano, IT;
Federico Gamba, Bergamo, IT;
Massimo Maura, Ceccano, IT;
Federico Gamba, Bergamo, IT;
ABB S.p.A., Milan, IT;
Abstract
A method for mutually welding a plate that has at least one layer based on Ag alloys and a copper body, comprising the use of laser means for performing the welding, its particularity consisting of the fact that it comprises the steps that consist in:—superimposing and coupling one face of the plate on a surface of the copper body;—starting the welding process by focusing the laser means on a point located proximate to the joint between the face of the plate and the surface of the copper body;—maintaining an angle of incidence of the laser means at values other than 0° with respect to the perpendicular to the surface to be welded;—moving the laser means with respect to the joint, so that the weldpool is pushed along the joint.