# 아노다이징 표면 처리된 항공기 저장조의 내면 정밀연마를 위한 제조공정의 개선

• Accepted : 2015.11.30
• Published : 2016.04.30

#### Abstract

Airplane reservoirs made of Al7075 are coated with an anodizing layer to maintain precision, air tightness and corrosion resistance. It is commonly required that the inner surface roughness of the reservoir be less than an average $0.2{\mu}m$ to maintain stable oil pressure. Even though precision polishing is necessary to achieve this quality it is not easy. Inner surface roughness is not uniform and the quality of the product is irregular because most of the work is done by hand. The purpose of this study is to design an exclusive polishing machine and to determine the standard cutting condition and polishing condition necessary for good inner surface roughness and to improve workefficiency.

#### Acknowledgement

Supported by : 중소기업청

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