DOI QR코드

DOI QR Code

플렉서블 양각금형의 마이크로 밀링가공에서 하이브리드 윤활공정에 따른 공구마멸과 표면조도 특성

Characteristics of Tool Wear and Surface Roughness using for Hybrid Lubrication in Micro-Milling Process of Flexible Fine Die

  • 투고 : 2013.12.09
  • 심사 : 2013.12.23
  • 발행 : 2013.12.31

초록

An FFD(flexible fine die) is an embossed mold that consists of a thin plate ranging from 0.6 to 3 mm in thickness. FFDs are primarily used for cutting LCD films and F-PCB sheets. In the high-speed micro-milling process of flexible fine dies, the lubrication and cooling of the cutting edges is very important from the aspect of eco machining and cutting performance. In this paper, a comparative study of tool wear and surface roughness between cutting fluid and hybrid lubrication for eco-machining of FFD was conducted for processes of high-speed machining of highly hardened material (STC5, HRC52). Especially, the incorporated fluid method for eco machining, in which the cutting performances can be simultaneously measured, was introduced. The machining results show that hybrid lubrication, instead of conventional cutting fluid, leads to excellent tool wear and surface roughness and represents the proper conditions for eco micro-machining of flexible fine dies.

키워드

참고문헌

  1. G. Byrne, D. Donfeld, B. Denkena, "Advancing ctting technology," CIRP Ann-Manuf. Technol., Vol. 52, No. 2, pp 483-507, 2003. https://doi.org/10.1016/S0007-8506(07)60200-5
  2. T. Thepsonthi, M. Hamdi, K. Mitsui, "Investigation into minimal-cutting-fluid application in high-speed milling of hardened steel using carbide mills," Int. J. of Mach. Tools Manuf., Vol. 49, pp. 156-162, 2009. https://doi.org/10.1016/j.ijmachtools.2008.09.007
  3. V. N. Gaitonde, S. R. Karnik, J. Paulo Davim, "Selection of optimal MQL and cutting conditions for enhancing machinability in turning of brass," J. of Mater. Process. Technol., Vol. 204, No. 1-3, pp. 459-464, 2008. https://doi.org/10.1016/j.jmatprotec.2007.11.193
  4. A. K. Nandi, J. P. Davim, "A study of drilling performances with minimum quantity of lubricant using fuzzy logic rules," Mechatronics, Vol. 19, No. 2, pp 218-232, 2009. https://doi.org/10.1016/j.mechatronics.2008.08.004
  5. S. Malkin, J. Lee, S. Masurkar, E. Hickok "Environmentally-conscious lubrication for superfinishing," J. of KSMPE, Vol. 2, pp. 5-14, 2003.
  6. L. N. Lopez de Lacalle, C. Angulo, A. Lamikiz, J.A. Sanchez, "Experimental and numerical investigation of the effect of spray cutting fluids in high speed milling," J. of Mater. Process. Technol., Vol. 172, No. 1, pp 11-15, 2006. https://doi.org/10.1016/j.jmatprotec.2005.08.014
  7. T. J. Je, D. S. Choi, Y. E. Yoo, S. M. Hong, E. S. Lee, K. H. Whang, J. C. Lee, "Study of flexible cutting die manufacturing process for SUS420," Proceeding of the KSMPE Spring Conference, pp 88-94, 2006.
  8. B. Geoffery, Fundamentals of metal machining and machine tools, McGraw-Hill Book Co., Vol. 1, pp. 70-72, 1975.
  9. T. Aoyama, Y. Kakinuma, M. Yamashita, and M. Aoki, "Development of anew lean lubrication system for near dry machining process," CIRP Ann-Manuf. Technol., Vol. 57, pp. 125-128, 2008. https://doi.org/10.1016/j.cirp.2008.03.094
  10. T. Obikawa, Y. Kamata, and J. Shinoauka, "High-speed grooving with applying MQL," Int. J. of Mach. Tools Manuf., Vol. 46, pp. 1854- 1861, 2006. https://doi.org/10.1016/j.ijmachtools.2005.11.007

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