发明名称 |
Method and apparatus for non-destructive weld testing |
摘要 |
A method for detecting the integrity of a bond of a multi-piece work piece includes capturing a first image of the work piece, stressing the work piece, capturing a stressed image of the work piece, and comparing the first image of the work piece with the stressed image of the work piece to determine the integrity of the bond. |
申请公布号 |
US8875579(B2) |
申请公布日期 |
2014.11.04 |
申请号 |
US201213429496 |
申请日期 |
2012.03.26 |
申请人 |
GM Global Technology Operations LLC |
发明人 |
Lev Leonid C.;Gu Randy;Yang Lianxiang;Xu Nan |
分类号 |
G01M7/02 |
主分类号 |
G01M7/02 |
代理机构 |
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代理人 |
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主权项 |
1. Method for detecting the integrity of a bond of a multi-piece work piece, comprising:
capturing a first image of the work piece; stressing the work piece; capturing a stressed image of the work piece; comparing the first image of the work piece with the stressed image of the work piece to identify shear lines indicative of strain in the work piece during the stressing; creating a shear image of the work piece based on the shear lines, the shear image including a node point indicating a location of the bond; comparing the shear image of the work piece to a reference image; and determining the integrity of the bond based on characteristics of the determined shear lines and the node point in relation to the reference image. |
地址 |
Detroit MI US |