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:
Jun. 15, 2004
Filed:
Feb. 18, 2003
Gerald Francis Hermann, Wetsland, MI (US);
GSI Lumonics Ltd., Rugby, GB;
Abstract
A method and system for laser welding non-circular or non-concentric parts, such as catalytic converter components. The present invention provides a method (and corresponding system for carrying out the method), comprising: providing a part having sections to be welded together; rotating the part on a constant speed rotary; generating a laser beam; directing the laser beam onto a surface of the part to weld the sections of the part together; and controlling the laser beam such that an angle of incidence of the laser beam on the surface of the part remains constant, the laser beam remains in focus on the surface of the part, and the laser beam moves at a constant surface speed along the surface of the part as the part is rotated on the constant speed rotary.