Automated Ultrasonic Testing Systems for Bars and Tubes, Examples with Mono-Element and Phased Array Probes
محل انتشار: سومین کنفرانس بینالمللی آزمونهای غیرمخرب ایران
سال انتشار: 1394
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 486
فایل این مقاله در 12 صفحه با فرمت PDF قابل دریافت می باشد
- صدور گواهی نمایه سازی
- من نویسنده این مقاله هستم
استخراج به نرم افزارهای پژوهشی:
شناسه ملی سند علمی:
ICTINDT03_039
تاریخ نمایه سازی: 18 مرداد 1398
چکیده مقاله:
This paper presents several examples for ultrasonic testing systems. Solid cross sections (bars and billets) and tubes (seamless and welded) are typical test tasks. The use of mono-element probes and phased array probes is compared.Systems for bars and billets with linear transportation and with rotational testing concepts (rotating bar/billet and linear probe movement) are presented. Large-scale immersion tanks for aerospace billets (aluminum, titanium, nickel-based alloys) provide the highest possible test sensitivity. The test tanks with high-precision mechanics sometimes use specially focused probes for multi-zone inspection (in accordance with SAE AMS 2628, SAE AMS-STD -2154, SNECMA DMC or MTU MTV 1033). A very large testing system was designed for forged bars with a diameters up to 1 m, lengths up to 10 m and weights up to 35 tons.The second part of the paper discusses testing systems for welded tubes. The tube welds can be electric resistance welds (ERW) or submerged-arc welds (SAW, longitudinal and helical) . Large wall thicknesses and the wide welds (SAW -pipes) lead to large testing volumes, especially if off-bead defects shall be detected. In addition, SHELL and some other test specifications ask for many test angles and probe positions. These requirements lead to a very large number of mono-element probes or suggest the use of phased array probes. Phased array probes with properly adjusted time-corrected-gain (TCG) and angle-corrected-gain (ACG) produce a uniform test sensitivity within the testing volume. This requires a proper design of probes, probe holders and test mechanics, e.g. by means of the CIVA software.
کلیدواژه ها:
ultrasonic testing (UT) ، phased arrays ، steel plant ، CIVA ، forged steel bars ، aerospace bars (titanium or nickel alloys) ، welded tubes
نویسندگان
Wolfram A. Karl Deutsch
Karl Deutsch Pruef- und Messgeraetebau GmbH + Co KG, Wuppertal, Germany
Mirmajid Ghaemi
Iran NDT, Tehran, Iran
Michael Joswig,
Karl Deutsch Pruef- und Messgeraetebau GmbH + Co KG, Wuppertal, Germany
Rainer Kattwinkel,
Karl Deutsch Pruef- und Messgeraetebau GmbH + Co KG, Wuppertal, Germany