한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제31권9호
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  • Pages.799-804
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  • 2014
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  • 1225-9071(pISSN)
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  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
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고경도강(AISI 4140, HrC60)의 하드터닝에서 가공속도 및 윤활조건 변경에 따른 CBN 공구의 마모 특성

Wear Characteristics of CBN Tools on Hard Turning of AISI 4140

  • 양기동 (한국생산기술연구원 생산시스템연구실용화그룹) ;
  • 박경희 (한국생산기술연구원 생산시스템연구실용화그룹) ;
  • 이명규 (한국생산기술연구원 IT융합공정연구실용화그룹) ;
  • 이동윤 (한국생산기술연구원 IT융합공정연구실용화그룹)
  • Yang, Gi-Dong (Department of Manufacturing System R&D, Korea Institute of Industrial Technology) ;
  • Park, Kyung-Hee (Department of Manufacturing System R&D, Korea Institute of Industrial Technology) ;
  • Lee, Myung-Gyu (Department of IT Converged Process R&D, Korea Institute of Industrial Technology) ;
  • Lee, Dong Yoon (Department of IT Converged Process R&D, Korea Institute of Industrial Technology)
  • 투고 : 2014.05.06
  • 심사 : 2014.07.03
  • 발행 : 2014.09.01
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초록

Hard turning is a machining process for hardened materials with high surface quality so that grinding process can be eliminated. Therefore, the hard turning is capable of reducing machining time and improving productivity. In this study, hardened AISI4140 (high-carbon chromium steel) that has excellent yield strength, toughness and wear resistance was finish turned using CBN tools. Wear characteristics of CBN tool was analyzed in dry and MQL mixed with nano-particle (Nano-MQL). The dominant fracture mechanism of CBN tool is diffusion and dissolution wear on the rake surface resulting in thinner cutting edge. Abrasive wear by hard inclusion in AISI4140 was dominant on the flank surface. Nano-MQL reduced tool wear comparing with the dry machining but chip evacuation should be considered. A cryogenically treated tool showed promising result in tool wear.

키워드

참고문헌

  1. Dogra, M., Sharma, V. S., Sachdeva, A., Suri, N. M., and Dureja, J. S., "Tool Wear, Chip Formation and Workpiece Surface Issues in CBN Hard Turning: A Review," Int. J. Precis. Eng. Manuf., Vol. 11, No. 2, pp. 341-358, 2010. https://doi.org/10.1007/s12541-010-0040-1
  2. Bang, H. I., "A Study on the Machining Characteristics with Coated Low CBN Inserts in Hard Turning of SCM440," Ph.D. Thesis, School of Precision Mechanical Engineering, Chonbuk National University, 2012.
  3. Huang, Y., Chou, Y. K., and Liang, S. Y., "CBN Tool Wear in Hard Turning: A Survey on Research Progresses," International Journal of Advanced Manufacturing Technology, Vol. 35, No. 5-6, pp. 443-453, 2007. https://doi.org/10.1007/s00170-006-0737-6
  4. Heo, S. J., "Hard Turning Machinability of V30 Cemented Carbide with PCD, CBN and PCBN Cutting Tool," J. Korean Soc. Precis. Eng., Vol. 25, No. 12, pp. 47-54, 2008.
  5. Jeon, J. Y., Ko, T. J., and Kim, H. S., "Research on the Intermittent Hard Turning (1): Machinability and Characteristic of CBN Tools," J. Korean Soc. Precis. Eng., Vol. 16, No. 7, pp. 58-65, 1999.
  6. Moon, S. H., Shin, H. G., and Kim, T. Y., "Machining Characteristics and Tool Wear in Hard Turning of AISI 52100 Steel with Low CBN," Proc. of the KSME 2004 Spring Annual Conference, Vol. 6, pp. 26-30, 2008.
  7. Varadarajan, A., Philip, P., and Ramamoorthy, B., "Investigations on Hard Turning with Minimal Cutting Fluid Application (HTMF) and Its Comparison with Dry and Wet Turning," International Journal of Machine Tools and Manufacture, Vol. 42, No. 2, pp. 193-200, 2002. https://doi.org/10.1016/S0890-6955(01)00119-5
  8. Enomoto, S., Kato, M., Miyazawa, S., and Ono, T., "Characteristics of Tool Life of CBN Cutting Tool in Turning Chromium-Molybdenum Steels of Various Hardnesses," Bulletin of the Japan Society of Precision Engineering, Vol. 21, No. 3, pp. 209-210, 1987.
  9. Naigade, D. M., Patil, D. H., and Sadaiah, M., "Some Investigations in Hard Turning of AISI 4340 Alloy Steel in Different Cutting Environments by CBN Insert," International Journal of Machining and Machinability of Materials, Vol. 14, No. 2, pp. 165-193, 2013. https://doi.org/10.1504/IJMMM.2013.055736
  10. Sayuti, M., Sarhan, A. A., and Salem, F., "Novel Uses of SiO2 Nano-Lubrication System in Hard Turning Process of Hardened Steel AISI4140 for Less Tool Wear Surface Roughness and Oil Consumption," Journal of Cleaner Production, Vol. 67, pp. 265-276, 2014. https://doi.org/10.1016/j.jclepro.2013.12.052
  11. Rahmati, B., Sarhan, A. A., and Sayuti, M., "Morphology of Surface Generated by End Milling AL6061-T6 using Molybdenum Disulfide (MoS2) Nanolubrication in End Milling Machining," Journal of Cleaner Production, Vol. 66, pp. 685-691, 2014. https://doi.org/10.1016/j.jclepro.2013.10.048
  12. Seah, K., Rahman, M., and Yong, K., "Performance Evaluation of Cryogenically Treated Tungsten Carbide Cutting Tool Inserts," Proc. of Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture, Vol. 217, No. 1, pp. 29-43, 2003. https://doi.org/10.1243/095440503762502260
  13. Yong, A. Y. L., Seah, K. H. W., and Rahman, M., "Performance of Cryogenically Treated Tungsten Carbide Tools in Milling Operations," The International Journal of Advanced Manufacturing Technology, Vol. 32, No. 7-8, pp. 638-643, 2007. https://doi.org/10.1007/s00170-005-0379-0
  14. Park, K.-H., Ewald, B., and Kwon, P. Y., "Effect of Nano-Enhanced Lubricant in Minimum Quantity Lubrication Balling Milling," Journal of Tribology, Vol. 133, No. 3, Paper No. 031803, 2011.