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CHI Dazhao, GANG Tie, YAO Yingxue, YUAN Yuan. Defect detection for red copper weldment using ultrasonic method[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (5): 21-24.
Citation: CHI Dazhao, GANG Tie, YAO Yingxue, YUAN Yuan. Defect detection for red copper weldment using ultrasonic method[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2010, (5): 21-24.

Defect detection for red copper weldment using ultrasonic method

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  • Received Date: November 05, 2009
  • Because the traditional ultrasonic test tech-nique has some shortcomings such as unreliability and poor re-cording,the ultrasonic TOFD (Time of Flight Diffraction) is em-ployed to detect defect of a thick wall (≥20 mm) red copper weldment.The analysis of the acoustic character of red copper provides a guideline for choosing of ultrasonic transducer.The sensitivity and accuracy of the system was tested and the test process was designed through testing an artificial defects con-tained block.Ultrasonic TOFD was carried on red copper weld-ment,and the non-destructive test results were verified by de-structive testing experiments.The results show that,ultrasonic TOFD is effective in recognition of the dangerous weld cracks with proper test process.

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