Classification of spot welds using power factor time profiles
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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Theoretical and experimental investigations have been carried out to examine the in uence of laser power and on time on the weld thermal cycle and weld metal microstructure and hardness during laser spot welding of low alloy steel. A transient heat transfer model that takes into account the temperature dependence of material properties and latent heat of phase transformation is employed to sim...
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............................................................................................................................ii APPENDED PAPERS.................................................................................................................iii DIVISION OF WORK BETWEEN AUTHORS.................................................................................iv TABLE OF CONTENTS........
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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...
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Ultrasonic testing is one of the most popular non-destructive methods to determine the quality in spot welds. The next step of this technology is to be able to determine the quality while the weld is being made, this advance can have a great impact on the quality assurance of joints in materials like aluminum, where the spot welding process is a difficult task. In our approach, a state-of-the-a...
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ژورنال
عنوان ژورنال: International Journal of Production Research
سال: 2001
ISSN: 0020-7543,1366-588X
DOI: 10.1080/00207540150504340