Title:
TESTING METHOD FOR WELDING QUALITY OF FRICTION STIR WELDED SURFACE
Document Type and Number:
WIPO Patent Application WO/2024/000953
Kind Code:
A1
Abstract:
A testing method for welding quality of a friction stir welded surface, comprising the following steps: acquiring a continuous weld seam surface depth image; cropping the weld seam surface depth image at an appropriate step size, and dividing the cropped weld seam surface depth image into areas to obtain a front side reference area, a thinning area and a rear side reference area; determining whether the flatness of the front side reference area is smaller than a threshold value, and if yes, taking the present height of the front side reference area as the latest reference height; if no, determining whether the flatness of the rear side reference area is smaller than a threshold value, and if yes, taking the present height of the rear side reference area as the latest reference height; if no, taking the reference height of the previous segment of depth image as the latest reference height; and subtracting the present average height of the thinning area from the latest reference height to obtain a thinning amount. The testing method has a high degree of automation, provides accurate testing results, and provides reference for later processing, thereby improving production efficiency and welding quality.
Inventors:
CHEN LIGUO (CN)
XU YUSHENG (CN)
ZHANG WENXIA (CN)
LIN YONGYONG (CN)
WANG YANGJUN (CN)
ZHANG HUADE (CN)
XUE LIWEI (CN)
YANG GUOSHUN (CN)
SUN LINING (CN)
XU YUSHENG (CN)
ZHANG WENXIA (CN)
LIN YONGYONG (CN)
WANG YANGJUN (CN)
ZHANG HUADE (CN)
XUE LIWEI (CN)
YANG GUOSHUN (CN)
SUN LINING (CN)
Application Number:
PCT/CN2022/127634
Publication Date:
January 04, 2024
Filing Date:
October 26, 2022
Export Citation:
Assignee:
UNIV SOOCHOW (CN)
International Classes:
B23K31/12; B23K20/12
Foreign References:
| CN115070251A | 2022-09-20 | |||
| CN111462110A | 2020-07-28 | |||
| CN111983030A | 2020-11-24 | |||
| CN112067623A | 2020-12-11 | |||
| CN113610814A | 2021-11-05 | |||
| CN114354618A | 2022-04-15 | |||
| US20110296923A1 | 2011-12-08 | |||
| US20190388998A1 | 2019-12-26 |
Attorney, Agent or Firm:
SUZHOU JIANSHAN INTELLECTUAL PROPERTY AGENCY (SPECIAL GENERAL PARTNERSHIP) (CN)
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