Journal of the Korean Society for Aviation and Aeronautics (한국항공운항학회지)

The Korean Society for Aviation and Aeronautics (한국항공운항학회)
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An Experimental Study on the Adherence Strength Characteristics of EA-9320 Adhesive and Aluminum Alloy

EA-9320 접착제와 알루미늄 합금의 접착강도 특성에 관한 실험적 연구

  • 김창수 (국제대학교 항공정비학과) ;
  • 백승익 (대전대학교 군사학과) ;
  • 박근석 (방위산업기술지원센터)
  • Received : 2019.03.29
  • Accepted : 2019.09.18
  • Published : 2019.09.30
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Abstract

The paste-type adhesive can be stored for a certain period of time and can be cured at room temperature. So it is mainly used for crack patching repair of aircraft airframe structures. This study analysed the influence of environmental factors and evaluated the adherence strength characteristics according to the adherence delay time of the paste-type adhesive. The test specimens were made of aluminum alloy(AL 2024-T3) with reference to ASTM D1002 which is generally performed to measure the adherence strength of the adhesive used for metal bonding. As a result of analysing the influence of temperature and humidity, it was found that the optimal temperature range is $24.5{\pm}0.5^{\circ}C$ and the optimal humidity range is $71{\pm}1%$ for maintenance work of the aircraft using EA-9320 adhesive. In addition, the adherence strength did not decrease with the inherent application time of the EA-9320, but it was found that the adherence strength dropped rapidly when the applied time exceeded the inherent application time of it.

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