Journal of Welding and Joining
- Volume 12 Issue 2
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- Pages.97-107
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- 1994
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- 2466-2232(pISSN)
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- 2466-2100(eISSN)
Real-Time Evaluation of Friction Weld Quality of Small-Type Hydraulic Valve Spool by Acoustic Emission
AE에 의한 소형 밸브스풀 마찰용접 품질의 실시간 평가
Abstract
Both in-process quality control and high reliability of the weld is one of the major concerns in applying friction welding to the economical and qualified mass-production. No reliable nondestructive monitoring method is available at present to determine the real-time evaluation of automatic production quality control for friction welding of special hydraulic valve spool of 16mm in diameter. This paper, so that, presents the experimental examinations and statistical quantitative analysis of the correlation between the initial cumulative counts of acoustic emission(AE) occurring during plastic deformation periods of the welding and the tensile strength and other properties of the welded joints of
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