Technical Information. Automatic Ultrasonic Testing for Welding Structures.
نویسندگان
چکیده
منابع مشابه
Welding characteristics and structures of same and different metal specimens using ultrasonic complex vibration welding equipments
Ultrasonic complex vibration welding of same and different metal specimens and structures of the welded area are studied using several complex vibration welding systems, scanning and transmission electron microscopes (SEM and TEM). Ultrasonic welding can weld various metal directly using vibration and static clamping pressure. The welding area is limited very narrow layer and can weld different...
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Owing to the successful use of phased array probes in automatic testing machines, more and more applications can now be found in the field of manual inspections. Miniaturization of electronic components and improvements of processing speed allow the integration of phased array hardware into a small, battery driven instruments for fast ultrasonic imaging. The advantages of the phased array techn...
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Ultrasonic welding is a rapid, promising bonding method for the bonding of polymer chips; yet its use is still limited. We present two lab-on-a-chip applications where ultrasonic welding can be preferably applied: (1) self-aligned gapless bonding of a two-part chip with a tolerance of 50 μm; (2) bonding of a large area shallow chamber (1.8 cm(2) × 150 μm). Using injection moulding combined with...
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The multi-layer welding structure is a kind of important weld component used in modern aviation industry. In order to control the quality of the inner welds, the method of ultrasonic immersion testing with focusing probe has been performed in this study. Some testing signals displayed in the screen are overlapping signals composed by the echoes with different propagation routes in the multi-lay...
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This paper deals with the automatic detection of defects within various welding. The authors propose a method based on taking an X-ray image of the welding and then applying various image processing algorithms for the detection of possible defects. This method has a significant improvement in the detection success ratio compared to classical detection techniques (by using human operators). Key-...
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ژورنال
عنوان ژورنال: Journal of the Japan Welding Society
سال: 1998
ISSN: 0021-4787,1883-7204
DOI: 10.2207/qjjws1943.67.497