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학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- Korean Society for Precision Engineering Journal of the Korean Society for Precision Engineering 한국정밀공학회지 Vol.29 No.3
- 발행연도
- 2012.3
- 수록면
- 279 - 288 (10page)
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초록· 키워드
오류제보하기
The material removal mechanism in machining is significantly affected by the cutting edge geometry. Its effect becomes even more substantial when the depth of cut is relatively small as compared to the characteristic length which represents the shape and size of the cutting edge. Conventionally, radius or focal length has been employed as the characteristic length with the assumption that the shape of cutting edge is round or parabolic. However, in reality, there could be various ways to determine the radius or focal length even for the same tool edge profile, depending on the region to be considered as cutting edge in the measured profile and the constraints to be set in constructing the best fitted circle or parabola. In this regard, the present study proposes various models to determine the characteristic length in terms of radius or focal length. Their physical compatibility are validated by carrying out 2D orthogonal cutting experiments using inserts with a wide range of characteristic length (30 ? 180 μm in terms of radius) and then by investigating the correlation between the characteristic length and the cutting forces. Such validation is based on the common belief that the larger the characteristic length is, the blunter the cutting edge is and the higher the cutting forces are. Interestingly, the results showed that the correlation is higher for the radius or focal length obtained with a constraint that the center of best fitted circle or the focus of the best fitted parabola should be on the bisectional line of the wedge angle of tool.
목차
1. 서론
2. 공구날 특이길이의 표현
3. 실험
4. 결과 및 토론
5. 결론
후기
참고문헌
참고문헌 (13)
참고문헌 신청
Yen, Y. C. / 2004 / A Finite Element Analysis of Orthogonal Machining Using Different Tool Edge Geometries / Journal of Materials Processing Technology 146(1):72~81
Woon, K. S. / 2008 / Investigations of Tool Edge Radius Effect in Micromachining: A FEM Simulation Approach / Journal of Materials Processing Technology 195(1):204~211
Liu, K. / 2007 / Finite Element Analysis of the Influence of Tool Edge Radius on Size Effect in Orthogonal Micro-Cutting Process / International Journal of Mechanical Sciences 49(5):650~660
M’Saoubi, R. / 2004 / Investigation of the Effects of Tool Micro-Geometry and Coating on Tool Temperature during Orthogonal Turning of Quenched and Tempered Steel / International Journal of Machine Tool and Manufacture 44(2):213~224
Childs, T. H. C. / 2008 / The Influence of Cutting Edge Sharpness on Surface Finish in Facing with Round Nosed Cutting Tools / CIRP Journal of Manufacturing Science and Technology 1(2):70~75
Woon, K. S. / 2008 / Investigations of Tool Edge Radius Effect in Micromachining: A FEM Simulation Approach / Journal of Materials Processing Technology 195(1):204~211
Liu, K. / 2007 / Finite Element Analysis of the Influence of Tool Edge Radius on Size Effect in Orthogonal Micro-Cutting Process / International Journal of Mechanical Sciences 49(5):650~660
M’Saoubi, R. / 2004 / Investigation of the Effects of Tool Micro-Geometry and Coating on Tool Temperature during Orthogonal Turning of Quenched and Tempered Steel / International Journal of Machine Tool and Manufacture 44(2):213~224
Childs, T. H. C. / 2008 / The Influence of Cutting Edge Sharpness on Surface Finish in Facing with Round Nosed Cutting Tools / CIRP Journal of Manufacturing Science and Technology 1(2):70~75
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