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.
초록· 키워드
오류제보하기
Microforming is a very efficient and economical technology to fabricate very small metallic parts in various applications. In order to extend the use of this forming technology for the production of microparts, the size effect, which occurs with the reduction of part size and affects the forming process significantly, must be thoroughly investigated. In this study, the tribological size effect in microforming was studied using modeling and scaled ring compression experiments. A micro-scale friction approach based on the slip-line field theory and lubricant pocket model was used to understand the friction mechanism and explain the tribological size effect. Ring compression tests were performed to analyze the interfacial friction condition from the deformation characteristics of the ring specimens. In addition, finite element analysis results were utilized to quantitatively determine the size-dependent frictional behavior of materials in various process conditions. By comparing theoretical results and experimental measurements for different size factors, the accuracy and reliability of the model were verified.
목차
Abstract
1. 서론
2. 마이크로 성형의 마찰모델
3. 실험
4. 결론
REFERENCES
참고문헌 (16)
참고문헌 신청
3. [학술지(정기간행물)] - U. Engel / 2002 / Basic Research on Cold and Warm Forging of Microparts / Key Eng. Mater 233 : 449 ~ 455
4. [학술지(정기간행물)] - L. V. Raulea / 2001 / Size Effect in the Processing of Thin Metal Sheets / J. Mater. Process. Technol 115 (1) : 44 ~ 48
5. [학술지(정기간행물)] - H. S. Kim / 2012 / Size Dependence of Flow Stress and Plastic Behaviour in Microforming of Polycrystalline Metallic Materials, Proc. IMecE Part C / J. Mechanical Engineering Science 226 : 403 ~ 412
6. [학술지(정기간행물)] - A. Buschhausen / 1992 / Evaluation of Lubrication and Friction in Cold Forging using a Double Backward-extrusion Process / J. Mater. Process. Technol 33 (1-2) : 95 ~ 108
7. [학술지(정기간행물)] - N. Tiesler / 2002 / Microforming-size Effects in Friction and Their Influence on Extrusion Processes / Wire 52 : 34 ~ 38
4. [학술지(정기간행물)] - L. V. Raulea / 2001 / Size Effect in the Processing of Thin Metal Sheets / J. Mater. Process. Technol 115 (1) : 44 ~ 48
5. [학술지(정기간행물)] - H. S. Kim / 2012 / Size Dependence of Flow Stress and Plastic Behaviour in Microforming of Polycrystalline Metallic Materials, Proc. IMecE Part C / J. Mechanical Engineering Science 226 : 403 ~ 412
6. [학술지(정기간행물)] - A. Buschhausen / 1992 / Evaluation of Lubrication and Friction in Cold Forging using a Double Backward-extrusion Process / J. Mater. Process. Technol 33 (1-2) : 95 ~ 108
7. [학술지(정기간행물)] - N. Tiesler / 2002 / Microforming-size Effects in Friction and Their Influence on Extrusion Processes / Wire 52 : 34 ~ 38
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UCI(KEPA) : I410-ECN-0101-2014-550-002659634