Journal of the Korean Society for Precision Engineering (한국정밀공학회지)

Korean Society for Precision Engineering (한국정밀공학회)
권호 표지

High Speed Machining Considering Efficient Manual Finishing Part II: Optimal Manual Finishing Process and Machining Condition

고속 가공을 이용한 금형의 효율적 생산 제 2 부: 사상 공정 및 가공 조건의 선정

  • 김민태 (서울대학교 대학원 기계항공공학부) ;
  • 제성욱 (LG 전자 생산 기술원) ;
  • 이해성 (서울대학교 대학원 기계항공공학부) ;
  • 주종남 (서울대학교 기계항공공학부)
  • Published : 2006.12.01
Download PDF
⟨ Previous Next ⟩

Abstract

In this work, optimal finish machining condition considering total time for mold or electrode manufacturing was investigated. First, manual finishing time according to the machining condition was analyzed for the work material. The effect of runout and phase shift of tool path on surface finish was also considered in those analyses. Secondly, optimal manual finishing processes were determined for various machining conditions. Finally, finish machining time and corresponding manual finishing time were taken into account for the estimation of the total time of manufacturing mold. Though small feed per tooth and pick feed reduced the manual finishing time, the finish machining time increased in such conditions. With a machining condition of feed per tooth of 0.2 mm and pick feed of 0.3 mm, the minimum total time of manufacturing mold was achieved in our machining condition.

Keywords

References

  1. Altan, T., Lilly, B. and Yen, Y. C., 'Manufacturing of Dies and Molds,' Annals of the CIRP, Vol. 50, pp . 405-423, 2001
  2. Lee, H. S., 'Systematic Finishing Process of Injection Molds,' Ph.D. Thesis, Seoul National University, 2004
  3. Kim, M. T., 'Pattern Characteristics and Time Estimation in Manual Finishing Process of Ball End Milled Surface,' Ms. Thesis, Seoul National University, 2000
  4. Kline, W. A. and Devor, R. E., 'The Effect of Runout on Cutting Geometry and Forces in End Milling,' International Journal of Machine Tool Design and Research, Vol. 23, pp. 123-140, 1983 https://doi.org/10.1016/0020-7357(83)90012-4
  5. Sutherland, J. W. and Babin, T. S., 'The Geometry of Surfaces Generated by the Bottom of an End Mill,' Transactions of NAMRI/SME, Vol. 16, pp. 202-208, 1988
  6. Armarego, E. J. A. and Despande, N. P., 'Computerized End Milling Force Prediction with Cutting Models Allowing for Eccentricity and Cutter Deflections,' Annals of the CIRP, Vol. 40, pp. 25-29, 1991 https://doi.org/10.1016/S0007-8506(07)61926-X
  7. Hekman, K. A. and Liang, S. Y., 'In-process Monitoring of End Milling Cutter Runout,' Mechatronics, Vol. 7, pp. 1-10, 1997 https://doi.org/10.1016/S0957-4158(96)00038-4
  8. Schulz, H. and Hock, St., 'High-Speed Milling of Dies and Moulds - Cutting Conditions and Technology,' Annals of the CIRP, Vol. 44, pp. 35-38, 1995 https://doi.org/10.1016/S0007-8506(07)62270-7
  9. Kim, M. T., 'High Speed Machining of Copper Electrode Considering Efficient Manual Finishing,' Ph.D. Thesis, Seoul National University, 2006