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Journal of Korean Society for Quality Management 2014;42(3): 325-. |
| 한국형 기동헬기 꼬리 날개 디페인팅 현상을 통한 도장 품질 향상에 관한 연구 |
| 장인기1, 김영진1, 서현수1, 전부일2 |
1국방기술품질원
2한국항공우주산업(주) |
| A study on improvement of painting quality through a de-painting phenomenon of KUH-1 tail blade |
| In-Ki Chang1, Young-Jin Kim1, Hyun-Soo Seo1, Boo-Il Jeon2 |
1Defense Agency for Technology and Quality
2Korean Aerospace Industries |
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| ABSTRACT |
Purpose:
The purpose of this study was to explain de-painting phenomenon of KUH-1 tail blade and to propose useful solution of it by test. The proposed solution was evaluated by real flight, and then it applied to mass product to improve the paint qual ity of KUH-1 tail blade.
Methods:
This study investigated an adhesive ability of primer following surface sanding condition. The cross cut and scratch test were conducted to evaluate the adhesive strength. And the water flow test was designed to simulate a real flight condition under rain. Through water flow test, an optimal condition of tail blade to prevent a de-painting phenomenon was deduced. Finally, the improvement method was evaluated by real flight under rain.
Results:
The results of this study are as follows; The sequential polishing was most excellent method in primer painting quality. The results of test including cross cut, scratch and water flow showed that MIL-DTL-53039 paint with epoxy primer has excellent adhesive ability. To proof the effect of improvement, a real flight during a rain condition was conducted. Finally, the comparison between original and improved configuration was conducted.
Conclusion:
The painting quality of KUH-1 tail blade was improved through deriving an optimal painting condition. In detail, a condition of optimal sanding and a sort of primer and paint was showed. Finally, the reliability of tail blade was guaranteed through improving the quality of painting. |
| Key Words:
De-painting Phenomenon;Cross Cut Test;Scratch Test;Water Flow Test;Flight Test; |
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