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Distance (m) A close up view of the defected weld with lack of root penetration which is visually unobservable. A radiograph of the defected weld with lack of root penetration confirmed by the dark circumferential line. Good Weld Weld Defect • 3” Gas line • Painted surface Job Details • Weld defect was positively identified using standard tools available in the Wavepro TM software • Subsequent prove up using Radiographic Testing (RT) confirms a 85% lack of root penetration at positions reported in the unrolled pipe display Main Findings Equipment: With the advanced interpretation tools such as frequency sweeping and C-Scan, welds can be screened for defects as part of the guided wave inspection. Wavemaker ® G3 EFC Solid Ring Clock position Guided Ultrasonics Ltd. Wavemaker House, The Ham, Brentford, TW8 8HQ United Kingdom Email : [email protected] Website : www.guided-ultrasonics.com Tel: +44 845 605 0227 ©2016 Guided Ultrasonics Ltd. All rights reserved. 2016CaseStudy12_rev0 Amplitude (dB)
