薄板スポット溶接部の非破壊評価技術

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タイトル別名
  • Ultrasonic Method for Testing Spot-Welds

抄録

  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.<br>

収録刊行物

  • 日本金属学会誌

    日本金属学会誌 76 (9), 555-562, 2012

    公益社団法人 日本金属学会

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