Progress in NDT of resistance spot welding of aluminium using ultrasonic C-scan
Thornton, M., Han, L. and Shergold, M.. (2012) Progress in NDT of resistance spot welding of aluminium using ultrasonic C-scan. NDT & E International, Vol.48 (No.2). pp. 30-38. ISSN 0963-8695Full text not available from this repository.
Official URL: http://dx.doi.org/10.1016/j.ndteint.2012.02.005
An ultrasonic C-scan technique was evaluated for non-destructive testing (NDT) of resistance spot welding of aluminium. It was established through fundamental trials that removal of surface indentation from the welding electrode is necessary in order to obtain credible non-destructive assessments of aluminium spot weld size and shape. The non-destructive test results showed good correlation with peeled samples and metallographic cross sections. The technique also provided further fundamental understanding of aluminium resistance spot welding (RSW) process; especially with respect to the presence of an outer fused ring. The fundamental aspect of this study was underpinned using the NDT technique for a real assembly; challenging the technique with access issues, different material combinations, multiple joint stacks and independent measurements. The non-destructive test analyses obtained correlated well with actual tear down results and offered further encouragement that the C-scan technique is viable as a production tool if a suitably flattened surface can be provided. © 2012 Elsevier Ltd.
|Item Type:||Journal Article|
|Divisions:||Faculty of Science > WMG (Formerly the Warwick Manufacturing Group)|
|Journal or Publication Title:||NDT & E International|
|Publisher:||Elsevier Sci Ltd.|
|Official Date:||June 2012|
|Page Range:||pp. 30-38|
|Access rights to Published version:||Restricted or Subscription Access|
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