Experimental Study on the Optimized Lubrication Conditions in MQL Turning of Workpieces with Taper Angle

테이퍼 각을 가진 소재의 MQL 선삭가공에서 최적 윤활 조건에 관한 실험적 연구

  • Kim, Dong-Hyeon (Dept. of Mechanical Design & Manufacturing Engineering, Changwon National University) ;
  • Kang, Dong-Wi (Dept. of Mechanical Design & Manufacturing Engineering, Changwon National University) ;
  • Cha, Na-Hyeon (Dept. of Mechanical Design & Manufacturing Engineering, Changwon National University) ;
  • Lee, Choon-Man (Dept. of Mechanical Design & Manufacturing Engineering, Changwon National University)
  • Published : 2013.02.28

Abstract

Many researchers are trying to reduce the use of lubrication fluids in metal cutting to obtain safety, environmental and economical benefits. The aim of this study is to determine the optimization lubrication conditions in minimum quantity lubrication(MQL) turning of workpieces with taper angle. This study has been considered about various conditions of MQL. The objective functions are cutting force and surface roughness. Design factors are nozzle diameter, nozzle angle, MQL supply pressure, distance between tool and nozzle and length of supply line. The cutting force and surface roughness were statistically analyzed by the use of the Box-Behnken method. As a results, optimum lubrication conditions were suggested and verification experiment has been performed. The results of this study are expected to help the selection of lubrication conditions in MQL turning.

Keywords

References

  1. Kang, J. H., "Environmentally Conscious Machining Technology and Machine-tool," Journal of the Korean Society for Precision Engineering, Vol. 9, No. 1, pp. 9-17, 2000.
  2. Lee, K. H. and Kim, J. Y., "Overview and Future Direction of Cleaner Production System," Journal of the Korean Society for Precision Engineering, Vol. 20, No. 8, pp. 12-16, 2003.
  3. Hwang, J., Chung, E. S. and Hwang, D. C., "A study on the Environmentally Conscious Machining," Journal of the Korean Society for Precision Engineering, Vol. 20, No. 2, pp. 50-57, 2003.
  4. Lee, J. H., Lee, S. J., Lee, S. W. and Choi, H. J., "Characteristics of Environment-friendly Semi-dry Turning," Journal of the Korean Society for Precision Engineering, Vol. 19, No. 10, pp. 221-226, 2002.
  5. Dhar, N. R., Islam, M. W., Islam, S. and Mithu, M. A. H., "The influence of minimum quantity of lubrication on cutting temperature, chip and dimensional accuracy in turning AISI-1040 steel," Journal of Materials Processing Technology, Vol. 171, No. 1, pp. 93-99, 2006. https://doi.org/10.1016/j.jmatprotec.2005.06.047
  6. Hwang, Y. K. and Lee, C. M., "Surface roughness and cutting force prediction in MQL and wet turning process of AISI 1045 using design of experiments," Journal of Mechanical Science and Technology, Vol. 24, No. 8, pp. 1669-1677, 2010. https://doi.org/10.1007/s12206-010-0522-1
  7. Rahman, M., Senthil Kumar, A. and Salam, M. U., "Experimental evaluation on the effect of minimal quantities of lubricant in milling," International Journal of Machine Tool & Manufacture, Vol. 42, No. 5, pp. 539-547, 2002. https://doi.org/10.1016/S0890-6955(01)00160-2
  8. Hwang, Y. K., Lee, C. M. and Park, S. H., "Evaluation of Machinability According to the Changes in Machine Tools and Cooling Lubrication Environments and Optimization of Cutting Conditions Using Taguchi Method," Internal Journal of Precision Engineering and Manufacturing, Vol. 10, No. 3, pp. 65-73, 2009. https://doi.org/10.1007/s12541-009-0049-5
  9. Hwang, Y. K., Chung, W. J., Jung, J. Y. and Lee, C. M., "A Study on the Improvement of Cutting Force and Surface Roughness in MQL turning," Transactions of the Korean Society of Machine Tool Engineers, Vol. 15, No. 4, pp. 83-91, 2006.
  10. Hwang, Y. K., Chung, W. J. and Lee, C. M., "Experimental Study of Cutting Force and Surface Roughness Prediction in MQL Turning of Al 6061," Journal of the Korean Society for Precision Engineering, Vol. 25, No. 6, pp. 159-167, 2008.
  11. Kim, D. H., Choi, J. Y. and Lee, C. M., "A Basic Study on the Surface Roughness in Turning Process Considering Taper Angle Variation," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 10, No. 6, pp. 16-21, 2011.
  12. Choi, C. H., Kim, D. H. and Lee, C. M., "A Study on Cutting Characteristic of Tapered Groove in Turning," Journal of the Korean Society of Manufacturing Process Engineers, Vol. 10, No. 6, pp. 27-32, 2011.
  13. Eretec, "MINITAB Realese 14," Eretec Inc, pp. 574-609, 2005.
  14. Cho, I. H., Lee, N. H., Chang, S. W., An, S. W., Yonn, Y. H. and Zoh, K. Duk., "Analysis of Characteristics and Optimization of Photo-degradation condition of Reactive Orange 16 Using a Box-Behnken Method," Journal of Korean Society of Environmental Engineers, Vol. 28, No, 9, pp. 917-925, 2006.