November 15, 2001
By: Donald N. Bugden
This article discusses the capabilities and limitations of the two most common online tube monitoring test methods -- eddy current and ultrasonic. It discusses the types of flaws that each is capable of detecting, and shows photographs of three typical flaws -- one that was detected by ultrasonic, one by eddy current, and one by both. It concludes by showing that both methods should be used to provide the most comprehensive testing of welded tube.
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From the Web: Luring a $100 million facility; R2D2; fab lab; and metals make American manufacturing - by Vicki Bell
Web articles for fabricators—Ohio community hoping to land metal fabricating plant; fabricated R2D2 rolls into Comic Con; FMA, Harper College collaborate on fab lab; Pittsburgh (and 11 other U.S. cities) poised for manufacturing growth; and 3-D printing and the Cardinals
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