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. 10, 2024
Filed:
Apr. 03, 2020
United Technologies Corporation, Farmington, CT (US);
Xiaomei Fang, Glastonbury, CT (US);
Christopher J. Hertel, Wethersfield, CT (US);
John D. Riehl, Hebron, CT (US);
John W. Connell, Yorktown, VA (US);
Frank L. Palmieri, Yorktown, VA (US);
John W. Hopkins, Suffolk, VA (US);
RTX Corporation, Farmington, CT (US);
USA as Represented by the Administrator of the National Aeronautics and Space Administration, Washington, DC (US);
Abstract
Methods and systems for the laser surface treatment on stainless steel alloys and nickel alloys may include a computer may be programmed to set a laser path corresponding to a predetermined geometric pattern. A laser may be coupled to the computer and apply a pulsed laser beam to a contact surface of the substrate along the predefined geometric pattern. The pulsed laser beam may have a laser power between 0.1 W and 100 W, single pulse fluence 1 mJ/mmand 1025 mJ/mmand a laser speed between 25.4 cm/s and 127 cm/s. The laser may generate an open pore oxide layer on the contact surface of the substrate with a thickness of 0.1-1 μm, an open pore distance of 0.05-1 μm. The open pore oxide layer may have a topography corresponding to the predefined geometric pattern. The topography may contain open pore structures and promote adhesive bond performance.