평 엔드밀 공구인선부 조도의 간접적인 측정법

Indirect Method for Measurement of Tool Edge Roughness in flat End Mill

  • 김전하 (부산대학교 대학원 정밀기계공학과) ;
  • 강명창 (부산대학교 기계공학부, 정밀정형 및 금형가공연구소) ;
  • 김정석 (부산대학교 기계공학부, 정밀정형 및 금형가공연구소)
  • Kim, Jeon-Ha (Dept.of Precision Mechanical Engineering, Graduate School of Busan National University) ;
  • Gang, Myeong-Chang (Sheet Products Process Research Group, Dept.of Mechanical Engineering, Busan National University) ;
  • Kim, Jeong-Seok (Sheet Products Process Research Group, Dept.of Mechanical Engineering, Busan National University)
  • 발행 : 2002.10.01

초록

End mill is an essential tool to generate complex surface in workpiece and it has been developed with various materials and tool shapes. The most important factor to evaluate the performance of end mill is still the wear characteristics of flank face. In addition to the flank wear, the tool edge roughness generated by the chipping is another important factor in aspects of material property and machinability evaluation and affects the quality of machined surface. Up to now, there is no direct method for measurement of tool edge roughness. In this study, the tool edge roughness of flat end mill is indirectly measured along the axial direction of workpiece. The theoretical equation is derived in consideration of tool geometry. Finally, the optimal conditions to measure the tool edge roughness by the proposed method are presented through the theoretical review and experimental identification.

키워드

참고문헌

  1. H. Iwabe, and Y. Fujii, 'Study on Cutting Mechanism of Different Helix Angles End Mills,' JSPE, Vol. 10, pp. 1889-1893, 1990
  2. H. Schut, 'High Speed Milling of Dies and Moulds-Cutting Conditions and Technology,' CIRP, Vol. 44, 1995 https://doi.org/10.1016/S0007-8506(07)62270-7
  3. S. L. Ko, S. K. Lee, and S. M. Bae, 'Study on the Design of End Mill Geometry,' KSPE, Vol. 18, No. 8, pp. 24-31, 2001
  4. D. Yan, T. I. El-wardancy, and M. A. Elbestawi, 'A Multisensor Strategy for Tool Failure Detection in Milling,' MTM, Vol. 35, No. 3, pp. 383-398, 1995 https://doi.org/10.1016/0890-6955(94)E0021-A
  5. J. T. Roth, and S. M. Pandit, 'Early Prediction of Impending End Milling Tool Failure using Acceleration Signals,' Transactions of NAMRI/SME, Vol. 26, pp. 243-248, 1998
  6. 김정석, 이득우, 강명창, 이기용, 김정훈, '고속가공에서 가공성 평가를 위한 3축 공구동력계 개발,' 한국 정밀공학회지, 제 16 권, 제 5 호, pp. 11-18, 1999
  7. 김정석, 이득우, 강명창, 이기용, 하건호, '고속엔드밀 가공시 동적모델에 의한 표면형상 예측,' 대한기계학회지, 제 24 권, 제 7 호, pp. 1681-1688, 2000
  8. J. W. Sutherland and Devor R. E., 'An Improved Method for Cutting Force and Surface Prediction in Flexible End Milling Systems,' ASME Journal of Engineering for Industry, Vol. 108, pp. 269-279, 1986 https://doi.org/10.1115/1.3187077