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논문 기본 정보

자료유형
학술저널
저자정보
송용현 (한국재료연구원) 김세종 (한국재료연구원) 이영선 (한국재료연구원) 윤은유 (한국재료연구원)
저널정보
한국소성·가공학회 소성·가공 소성가공 제30권 제1호(통권 제191호)
발행연도
2021.2
수록면
35 - 42 (8page)

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초록· 키워드

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Magnesium alloys are used in electronic devices such as laptops due to their lightweight features as well as vibration absorption and electromagnetic shielding properties. However, the precision of electronics is limited by the large number of small and precise ribs, the cost-effective manufacture of which requires appropriate technology. Plate forging is an efficient manufacturing process that can address these challenges. In this study, plate forging of magnesium alloys was investigated specifically for the fabrication of laptop cover. The plate forging process with back-pressure was used for near-net shape formation. Finite element analysis was used to select appropriate variables for back-pressure formation to generate ribs of various sizes and shapes without defects. The reliability of the analysis was verified to manufacture the prototype. The effect of back-pressure can be verified via fabrication of prototypes as well as structure and forming analysis based on finite element method. The process design factor of back-pressure increases formability without defects of under-filling and flow-through. Moreover, the tensile strength was maintained even after high temperature plate forging at 370 ℃, and the elongation was improved.

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Abstract
1. 서론
2. 마그네슘 합금 후판 판단조
3. 실험
4. 결론
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