Ultrasonic examination for resistance spot welds of thin sheet steel with focusing probe.
نویسندگان
چکیده
منابع مشابه
Improvements in Ultrasonic Inspection of Resistance Spot welds
Resistance welding is an electrothermic process commonly used in Industry for joining sheet metal, particularly steel, in applications such as automobile bodies and chassis assemblies. The method is suitable for partial or total automation, and is very reliable. However, as with any process, problems can occur and inspection is therefore necessary. Although ultrasonic inspection of spot welds h...
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Bin Zhou, M. D. Thouless, and S. M. Ward Department of Mechanical Engineering Department of Material Science and Engineering University of Michigan Ann Arbor, MI, 48109 Scientific Research Laboratory Ford Motor Company Dearborn, MI, 48124 Abstract A methodology for determining the cohesive facture parameters associated with pull-out of spot welds is presented. Since failure of a spot weld by pu...
متن کاملUltrasonic Testing of Spot Welds in the Automotive Industry
In the modern motorcar production, more than 300 deep-drawn sheet metal parts are joined together by more than 3,000 spot welds on each car body. To check the spot welds within the framework of the quality assurance, different nondestructive test methods are available in addition to the destructive methods (tear down test, metallographic inspection): the chipping test and the ultrasonic test, w...
متن کاملeffect of expulsion on energy absorption capability of low carbon steel resistance spot welds
this paper aims at investigating the effects of weld nugget size and expulsion on the mechanical properties of low carbon steel resistance spot welds using tensile-shear test. mechanical performance of spot welds are described in terms of failure mode, peak load and failure energy obtained from the tensile-shear test. the effects of voids and porosity as well as electrode indentation associated...
متن کاملMechanical Properties of Resistance Spot Welds in Lightweight Applications
............................................................................................................................ii APPENDED PAPERS.................................................................................................................iii DIVISION OF WORK BETWEEN AUTHORS.................................................................................iv TABLE OF CONTENTS........
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ژورنال
عنوان ژورنال: QUARTERLY JOURNAL OF THE JAPAN WELDING SOCIETY
سال: 1988
ISSN: 0288-4771
DOI: 10.2207/qjjws.6.305