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. 08, 2019
Filed:
May. 13, 2015
Mahle International Gmbh, Stuttgart, DE;
Mahle International GmbH, , DE;
Abstract
A method for producing a piston may include aligning at least two piston components along corresponding joining surfaces, activating a laser designed for deep-welding, and aligning a laser beam with a starting point. The method may then include increasing a power density of the laser beam over a first defined path along the joining surfaces to produce a weld seam with an increasing weld seam depth, deep welding along the joining surfaces to produce a deep weld seam with a substantially constant weld seam depth up to a defined end point, and reducing the power density over a second defined path to produce a weld seam with a decreasing weld seam depth. The method may further include overwelding at least part of at least one of the first and second defined paths by a laser designed for heat conduction welding to produce at least one heat conduction weld seam.