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The Study of Quality Evaluation on Dissimilar Material Friction Welding of Poly-urethane Foaming Machine Components  

Yang, Yong-Mo (Pohang Campus of Korea Polytechnic Dept. of Computer Based Machinery)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.11, no.6, 2012 , pp. 75-81 More about this Journal
Abstract
Dissimilar material friction welding such as STD11 and SCM440, we are considering of such things as strength and tenacity of welding interface, which consist of friction welding rotation frequency, friction heating pressure, upset forging-pressure, friction heating time, and upset forging-pressure time. From the study, obtaining the interrelationship between welding condition and quality(toughness, tenacity), we can set the best range of welding condition. while performing acoustic emission examination for the nondestructive evaluation, we can deduce the interrelationship among total acoustic emission counts, friction welding variable, and quality during friction welding, which can solve the manufacturing difficulty and enhance the economic value.
Keywords
Acoustic Emission; Dissimilar Friction Welding; Weld Interface; Heat Affected Zone;
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