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:
Dec. 06, 1994
Filed:
Oct. 09, 1992
Mark A Campbell, Canton, MI (US);
John J Sniezek, Dearborn Heights, MI (US);
Robert I Phillion, Washington, MI (US);
Jeffrey N Hernden, Romeo, MI (US);
General Motors Corporation, Detroit, MI (US);
Abstract
An apparatus comprises a fixture for positioning a first sheet metal part in proximity of a second sheet metal part so that each sheet metal part has one surface facing the other sheet metal part across a gap and one surface facing away from the other sheet metal part, wherein at least one of the sheet metal parts comprises galvanized steel. A laser beam delivery device applies a laser beam to one of the facing away surfaces. A feed wire source provides a feed wire comprising a supplemental wire and a reactive agent at an intersection of the laser beam and the one facing away surface. The apparatus affects relative movement between the one facing away surface and the laser beam to provide a laser weld between the two sheet metal parts.