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.
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.
State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China;School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
2.
State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China
3.
School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, China
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.