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엔드밀링의 전단특성 및 마찰특성 해석

The Shear and Friction Characteristics Analysis of End-Milling

  • 발행 : 2001.10.01

초록

In end milling process the undeformed chip thickness and the cutting force components vary periodically with phase change of the tool. In this study, up end milling process is transformed to the equivalent oblique cutting. The varying undeformed chip thickness and the cutting force components in end milling process are replaced with the equivalent average ones. Then it can be possible to analyze the chip-tool friction and shear process in the shear plane of the end milling process by the equivalent oblique cutting model. According to this analysis, when cutting SM45C steel, 72% of the total energy is consumed in the shear process and the balance is consumed in the friction process.

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참고문헌

  1. 이기영, 강명창, 김정석, 1996, '엔드밀 가공시 동적절삭력 모델에 의한 표면 형상 예측,' 대한기계학회 춘계학술대회 논문집, pp. 605-609
  2. Martellotti, M.E., 1941, 'An Analysis of the Milling Process,' Trans. of ASME, Vol. 63, pp. 677-700
  3. Tlusty, J. and Macneil, P., 1975, 'Dynamics of Cutting Forces in End Milling,' Annals of CIRP, Vol. 24, No. 1, pp. 21-25
  4. Fussell, B. K. and Srinivasan, K., 1989, 'An Investigation of the End Milling Process Under Varying Machining Conditions,' Trans. of ASME, Vol. 111, pp. 27-36
  5. Beddoes, J. and Bibby, M. J., 1999, 'Principles of Metal Manufacturing Processes,' Arnold Press, New York, pp. 199-202
  6. Shaw, M.C., 1984, 'Metal Cutting Principles,' Clarendon Press, Oxford, pp. 428-439
  7. Stabler, G.V., 1964, 'The Chip Folw Law and its Consequences,' Pro. 5th Int. Mach. Tool. Des. Res. Conf., Birmingham, pp. 243-251
  8. Merchant, M.E., 1945, 'Mechanics of the Metal Cutting Process. I. Orthogonal Cutting and a Type 2 Chip,' J. of Applied Physics, Vol. 16, pp. 267-275 https://doi.org/10.1063/1.1707586
  9. Lee, Y.M., Choi, W.S. and Song, T.S., 2000, 'Analysis of 3-D Cutting Process with Single Point Tool,' Int. J. KSPE, vol. 1, No. 1, pp. 15-21
  10. Shaw, M.C., and Finnie, I., 1955, 'The Shear Stress in Metal Cutting,' Trans. of the ASME, Vol. 77, pp. 115-125
  11. 이영문, 송지복, 1988, '2차원 절삭시 칩-공구 마찰상태에 따른 전단각 변화,' 대한기계학회논문집, 제12 제2호, pp. 252-261
  12. 이영문, 최원식, 송태성, 박태준, 장은실, 1999, '3차원 절삭시 칩-공구마찰 및 전단특성 해석,' 한국정밀학회지, 제16권 6호, pp. 190-196