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. 12, 2017
Filed:
Apr. 20, 2016
Edison Welding Institute, Inc., Columbus, OH (US);
Paul C. Boulware, Columbus, OH (US);
Roger Spencer, Asheville, OH (US);
Jeong K. Na, Centerville, OH (US);
Cumberland & Western Resources, LLC, Bowling Green, KY (US);
Abstract
A method for characterizing a spot weld, including acquiring a sequence of A-scans from an ultrasonic phased array, wherein the A-scans describe individual portions of a field of view of the phased array; manually applying an interface gate and a flaw gate to each individual A-scan within the sequence of A-scans; calculating a gate ratio between a maximum amplitude under the interface gate and a maximum amplitude under the flaw gate for each individual A-scan; plotting the gate ratio for each individual A-scan as a function of location within the phased array field of view to generate a weld fusion map; using a predetermined threshold to differentiate fused locations from unfused locations on the weld fusion map; and calculating predetermined weld metrics, wherein the predetermined weld metrics include area, diameter, width, length, percent fused, or combinations thereof.