Materials Transactions Online

Materials Transactions, Vol.53 No.04 (2012) pp.604-609
© 2012 The Japanese Society for Non-Destructive Inspection

Non-Destructive Evaluation of Weld Structure Using Ultrasonic Imaging Technique

Takahiro Ebuchi, Junichi Kitasaka and Tatsuyuki Nagai

Non-destructive Inspection Co., Ltd., Osaka 550-0014, Japan

The welding penetration depth and width measured by destructive inspection are very important items to evaluate welding quality. However, the destructive method has some limitations and disadvantages. In this study, ultrasonic measurement technique which can make the image of cross sectional macro structure non-destructively was investigated. As a result, it is concluded that signal processing of ultrasonic back scattering is effective to measure the penetration depth of welds.

(Received 2009/11/09; Accepted 2011/10/29; Published 2012/03/25)

Keywords: ultrasonic, back scattering wave, signal processing, imaging, weld

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REFERENCES

  1. J. Kitasaka, T. Ebuchi and T. Nagai: JSAE Fall Conference 2007, Kyoto, (Society of Automotive Engineers of Japan, 2007) pp. 9-12.
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  3. J. Kitasaka and K. Mukai: JSNDI Fall Conference 2000, Miyagi, Japan, (The Japan Society for Non-Destructive Inspection, 2000) pp. 13-16.
  4. I. N. Ermolov and V. G. Shcherbinskii: Use of Amplitude-Distance-diameter diagrams when inspecting inclined probes, (Sov. J. Non Destr. Test., 1970).


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