We developed a technique for nondestructively evaluating spot welds based on through transmission of Lamb waves. The nugget diameter can be evaluated by measuring the width of the zone where attenuated transmitted waves are observed. A particularly important feature of the developed technique is that spot welds with no weld metal can be reliably distinguished from spot welds with weld metal. We also developed a measuring system using array transducers. The measurement results using the system agree well with the nugget diameters measured by cross sectional observation.
机构:
JFE Steel Corp, Instrument & Control Engn Res Dept, Steel Res Lab, Kawasaki, Kanagawa 2100855, JapanJFE Steel Corp, Instrument & Control Engn Res Dept, Steel Res Lab, Kawasaki, Kanagawa 2100855, Japan
Takada, Hajtme
Ozeki, Takafumi
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JFE Steel Corp, Instrument & Control Engn Res Dept, Steel Res Lab, Kawasaki, Kanagawa 2100855, JapanJFE Steel Corp, Instrument & Control Engn Res Dept, Steel Res Lab, Kawasaki, Kanagawa 2100855, Japan
Ozeki, Takafumi
Ikeda, Rinsei
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JFE Steel Corp, Joining & Strength Res Dept, Steel Res Lab, Chiba 2600835, JapanJFE Steel Corp, Instrument & Control Engn Res Dept, Steel Res Lab, Kawasaki, Kanagawa 2100855, Japan
Ikeda, Rinsei
Hirose, Tomoyuki
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JFE Steel Corp, Automot Steel Sect, Prod Design & Qual Control Dept, W Japan Works, Fukuyama, Hiroshima 7218510, JapanJFE Steel Corp, Instrument & Control Engn Res Dept, Steel Res Lab, Kawasaki, Kanagawa 2100855, Japan
机构:
Instrument and Control Engineering Dept., Plant Risk Forecast Project, JFE R and DInstrument and Control Engineering Dept., Plant Risk Forecast Project, JFE R and D
Takada, Hajime
Hirose, Tomoyuki
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Automotive Steel Sec., Products Design and Quality Control for Sheet and Strip Dept., West Japan WorksInstrument and Control Engineering Dept., Plant Risk Forecast Project, JFE R and D
机构:
Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, IndiaIndian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India
Mukhopadhyay, G.
Bhattacharya, S.
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Tata Steel, R&D & Sci Serv, Jamshedpur 831001, Bihar, IndiaIndian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India
Bhattacharya, S.
Ray, K. K.
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Indian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, IndiaIndian Inst Technol, Dept Met & Mat Engn, Kharagpur 721302, W Bengal, India