지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2013.2
- 수록면
- 173 - 177 (5page)
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초록· 키워드
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The purpose of this paper is to investigate the influences on mechanical properties of two-stroke cycle motor pistons manufactured by casting, conventional forging and powder forging, through the comparison of characteristics, merits and disadvantages of each forming technology. For each forming technology, the optimal process parameters were determined through the experiments for several conditions, and microstructure, hardness, tensile strength and elongation of pistons are compared and analyzed. In conventional forging process, material temperature was 460℃ and the die temperature was 210℃ for the Al 4032. The optimal condition was found as solution treatment under 520℃ for 5 hours, quenching with 23℃ water, and aging under 190℃ for 5 hours. In powder forging process, the proper composition of material was determined and optimal sintering conditions were examined. From the experiment, 1.5% of Si contents on the total weight, 580℃ of sintering temperature, and 25 minutes of sintering time were determined as the optimal process condition. For the optimal condition, the pistons had 76.4∼78.3 [HRB] of hardness, and 500 [MPa] of tensile strength after T6 heat treatment.
목차
1. Introduction
2. Casting and Conventional Forging Piston
3. Powder Forging Piston
4. Preform design by FEM simulation
5. Result and Preform design by FEM simulation
6. Conclusion
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UCI(KEPA) : I410-ECN-0101-2014-552-000345877