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. 23, 2024
Filed:
Oct. 26, 2022
Soochow University, Suzhou, CN;
Liguo Chen, Suzhou, CN;
Yusheng Xu, Suzhou, CN;
Wenxia Zhang, Suzhou, CN;
Yongyong Lin, Suzhou, CN;
Yangjun Wang, Suzhou, CN;
Huade Zhang, Suzhou, CN;
Liwei Xue, Suzhou, CN;
Guoshun Yang, Suzhou, CN;
Lining Sun, Suzhou, CN;
SOOCHOW UNIVERSITY, Suzhou, CN;
Abstract
A method for detecting a surface welding quality of friction stir welding includes: acquiring a continuous surface depth image of a welding seam; intercepting a surface depth image segment of the welding seam with a proper step size, and dividing the intercepted surface depth image segments of the welding seam into a front reference region, a thinned region and a rear reference region; judging whether flatness of the front reference region is less than a threshold, and if yes, taking a height of the front reference region at this point as a latest reference height; if no, judging whether the flatness of the rear reference region is less than the threshold, and if yes, taking a height of the rear reference region at this point as the latest reference height; if no, taking the reference height of previous depth image segment as the latest reference height; and calculating a difference.