A Guideline of Ultrasonic Inspection on Butt Welded Plates

Malaysia International NDT Conference and Exhibition 2018

Burhan, Ibrahim^1 ; Mutaiyah, Gopinathan^2 ; Hashim, Dina Izzati^3 ; Loganathan, Tamil Moli^3 ; Sultan, Mohamed Thariq Hameed^4

Department of Aircraft Maintenance, Politeknik Banting Selangor, Persiaran Ilmu, Banting

42700, Malaysia^1

Department of Mechanical Engineering, Universiti Tenaga Nasional, Jalan IkramUniten, Selangor, Kajang

43000, Malaysia^2

Department of Mechanical Engineering, Politeknik Banting Selangor, Persiaran Ilmu, Banting

42700, Malaysia^3

Department of Aerospace Engineering, Universiti Putra Malaysia, Serdang

43400, Malaysia^4

关键词: Double v;    Mathematical formulas;    Radiographic films;    Radiographic inspection;    Stand-off;    Ultrasonic inspections;    Ultrasonic techniques;    Welded plates;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/554/1/012002/pdf
DOI  :  10.1088/1757-899X/554/1/012002

来源: IOP

【 摘 要 】

This paper explained the procedure to carry out the ultrasonic inspection for single and double-V butt welded plates in detail by including the calculation of skip distance, stand-off, interpretation from plotting system, and the preparation of full inspection report as well. In addition, few inspections were compared on butt welded plate single and double-V to determine which is the most suitable, accurate and precise reading obtained. The comparisons were made between scheme answer from Sirim inspector, X-ray film, data that obtained from ultrasonic inspection and calculation by mathematical formulas and using plotting system. Mathematical formulas and plotting system was utilized to obtained the distance of stand-off (Soff) and skip distance, (Smax) whereas the plotting system were applied to locate the defects based on their S max and S off, and also to determine the depth, d and radius, r. The defects of single-V and double-V butt welding inspected by the ultrasonic technique were then compared with those obtained from the radiographic film while a good agreement was observed. However, the ultrasonic inspection proved to be much more sensitive than the radiographic inspection.