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The article presents the analysis of the effectiveness of acoustic feedback required in ultrasonic contact tests. The analysis included low-density couplants, the use of which aimed to provide the most effective transfer of the beam of ultrasonic waves from the probe to an element subjected to an ultrasonic test. The tests were performed using a normal probe emitting longitudinal waves and an angle...
The article presents the analysis of the effectiveness of acoustic feedback required in ultrasonic contact tests. The analysis included high-density couplants, the use of which aimed to provide the most effective transfer of the beam of ultrasonic waves from the probe to an element subjected to an ultrasonic test. The tests involved the use of standard specimens nos. 1 and 2 and special steel specimens...
The article presents test results related to the detectability of flat discontinuities depending on their orientation in relation to the axis of an ultrasonic wave beam. The flat discontinuity used in the tests was the skew surface of a DGS standard, being an infinite reflector for an ultrasonic wave. The tests were performed using a Phased Array transducer and a defectoscope with a Phased Array imaging...
Basic factors which have an influence on conducting manual ultrasonic testing of joints in the welded constructions are presented in the following article. These factors are specified on the base of the guidelines referring to conditions and methods of carrying out examinations which are currently in force in the following standards PN-EN ISO 17640 and PN-EN ISO 22825. Due to the vastness of subject...
The article presents the analysis of guidelines contained in PN-EN ISO 17640 related to ultrasonic tests of welded joints with reference to aligning the angle of beam introduction into a weld fusion line as well as the results of tests investigating the bevelling angle effect on the amplitude of echo bounced off the bevelled surface simulating the echo bounced off incomplete side fusions. The tests...
Quality assurance systems in welding engineering demand that the manufacturers of welded structures and welding equipment should apply qualified welding technologies. The most commonly used mode of welding technology qualification is testing a given welding technology by making test joints and carrying out their examination. This article presents the analysis of test joint dimensions recommended in...
Stosowane w badaniach ultradźwiękowych wytyczne wg aktualnych norm PN-EN 1712 i PN-EN 1714 dotyczące sposobu przeprowadzania badania, a w szczególności dokładności oceny wykrywanych niezgodności budzą wiele wątpliwości. Przedstawiona w opracowaniu analiza miała na celu określenie niedokładności w stosowanym obecnie systemie oceny. Ponadto stanowiła wstępną próbę wyznaczenia nowego sposobu oceny niezgodności...
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