Abstract
To minimize friction at the chip–tool interface and the amount of lubricant usage, a new near-dry machining technique called “contact-charged electrostatic spray lubrication (CCESL) technique” was proposed. The chargeability, penetrability, and wettability of lubricant droplets under CCESL condition were analyzed. The atomization and tribological performance of the CCESL technique were compared with those of the existing minimal quantity lubrication (MQL) technique under different testing conditions. The experimental results suggest that the CCESL technique considerably improves the anti-wear and anti-friction properties compared with the existing MQL technique. In addition, to understand its lubrication mechanism, the morphology and main elements of the worn surface were characterized using an optical microscope and X-ray photoelectron spectroscopy, respectively. In the CCESL technique, an ordered molecule layer which provides effective lubrication is formed on the rubbing surface as polar functional groups in the lubricant molecule are oriented. The enhanced tribological performance is attributed to the fact that the technique can provide more abundant lubricant and oxygen for the interface of frictional pairs to promote the formation of an abundant lubricating layer comprising adsorption and oxide films, which improve the worn surface quality.
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References
Rahim, E.A., Sasahara, H.: A study of the effect of palm oil as MQL lubricant on high speed drilling of titanium alloys. Tribol. Int. 44(3), 309–317 (2011)
Kishawy, H.A., Dumitrescu, M., Ng, E.G., Elbestawi, M.A.: Effect of coolant strategy on tool performance, chip morphology and surface quality during high-speed machining of A356 aluminum alloy. Int. J. Mach. Tools Manuf. 45(2), 219–227 (2005)
Rahman, M., Kumar, A.S., Salam, M.U.: Experimental evaluation on the effect of minimal quantities of lubricant in milling. Int. J. Mach. Tools Manuf. 42(5), 539–547 (2002)
Machado, A.R., Wallbank, J.: The effect of extremely low lubricant volumes in machining. Wear 210(1–2), 76–82 (1997)
Hanyu, H., Kamiya, S., Murakami, Y., Saka, M.: Dry and semi-dry machining using finely crystallized diamond coating cutting tools. Surf. Coat. Technol. 173–174, 992–995 (2003)
Obikawa, T., Kamata, Y., Shinozuka, J.: High-speed grooving with applying MQL. Int. J. Mach. Tools Manuf. 46(14), 1854–1861 (2006)
Da Silva, R.B., Vieira, J.M., Cardoso, R.N., Carvalho, H.C., Costa, E.S., Machado, A.R., et al.: Tool wear analysis in milling of medium carbon steel with coated cemented carbide inserts using different machining lubrication/cooling systems. Wear 271(9–10), 2459–2465 (2011)
Ghanshyam, C., Bagchi, S., Kapur, P.: Optimization of spray parameters in the fabrication of SnO2 layers using electrostatic assisted deposition technique. J. Electrost. 71(1), 68–76 (2013)
Law, S.E.: Agricultural electrostatic spray application: a review of significant research and development during the 20th century. J. Electrost. 51–52, 25–42 (2001)
Devanand, M., Divaker, D.: Effects of electrode voltage, liquid flow rate, and liquid properties on spray chargeability of an air-assisted electrostatic-induction spray-charging system. J. Electrost. 68(2), 152–158 (2010)
Reddy, N.S.K., Nouari, M., Yang, M.Y.: Development of electrostatic solid lubricant system for improvement in machining process performance. Int. J. Mach. Tools Manuf. 50(9), 789–797 (2010)
Reddy, N.S.K., Yang, M.: Development of an electro static lubrication system for drilling of SCM 440 steel. Proc. Inst. Mech. Eng. Part B-J. Eng. Manuf. 224(B2), 217–224 (2010)
Liu, X., Xu, W.J., Sun, J.: Experimental research on the dry electrostatic cooling assisted machining for hardened steel. Adv. Mater. Res. 189–193, 3026–3030 (2011)
Yakuku, S.O.: Ecological pure ionized gaseous medium in the technology of machining. Int. J. Phys. Sci. 4(3), 133–138 (2009)
Wang, H., Han, R.D., Wang, Y.: Tool wear investigation on dry electrostatic cooling in turning titanium alloy Ti6Al4V. Adv. Mater. Res. 97–101, 2058–2061 (2010)
Tung, S.C., Wang, S.S.: In-situ electro-charging for friction reduction and wear resistant film formation. Tribol. Trans. 34(4), 479–488 (1991)
Jiang, H.J., Meng, Y.G., Wen, S.Z., Ji, H.: Effects of external electric fields on frictional behaviors of three kinds of ceramic/metal rubbing couples. Tribol. Int. 32(3), 161–166 (1999)
Lavielle, L.: Electric field effect on the friction of a polyethylene-terpolymer film on a steel substrate. Wear 176(1), 89–93 (1994)
Kimura, Y., Nakano, K., Kato, T., Morishita, S.: Control of friction coefficient by applying electric fields across liquid crystal boundary films. Wear 175(1–2), 143–149 (1994)
Alves, S.M., Barros, B.S., Trajano, M.F., Ribeiro, K.S.B., Moura, E.: Tribological behavior of vegetable oil-based lubricants with nanoparticles of oxides in boundary lubrication conditions. Tribol. Int. 65, 28–36 (2013)
Jahannama, M.R., Watkins, A.P., Yule, A.J.: Examination of electrostatically charged sprays for agricultural spraying applications. In: ILASS-Europe 99 Toulouse, vol. 5–7, pp. 120-127 (1999)
Park, K.H., Olortegui-Yume, J., Yoon, M.C., Kwon, P.: A study on droplets and their distribution for minimum quantity lubrication (MQL). Int. J. Mach. Tools Manuf. 50(9), 824–833 (2010)
Gao, S.Q., Liu, H.P.: Capillary Mechanics. Science Press, Beijing (2010)
Zhu, B.Y., Zhao, G.X.: The determination of the surface tension of a liquid: drop volume method. Chemistry 6, 21–26 (1981)
Harkins, W.D.: The Physical Chemistry of Surface Film. Reinhold Publishing Corporation, New York (1962)
Purcell, E.M.: Electricity and Magnetism. McGraw-Hill, New York (1965)
Elajnaf, A., Carter, P., Rowley, G.: The effect of relative humidity on electrostatic charge decay of drugs and excipient used in dry powder inhaler formulation. Drug Dev. Ind. Pharm. 33(9), 967–974 (2007)
Rohman, A., Man, Y.B.C.: Fourier transform infrared (FTIR) spectroscopy for analysis of extra virgin olive oil adulterated with palm oil. Food Res. Int. 43(3), 886–892 (2010)
Kuligowski, J., Quintás, G., Garrigues, S., de la Guardia, M.: Determination of lecithin and soybean oil in dietary supplements using partial least squares–Fourier transform infrared spectroscopy. Talanta 77(1), 229–234 (2008)
Li, Z.P., Li, X.F., Zhang, Y.W., Ren, T.H., Zhao, Y.D., Zeng, X.Q., et al.: Tribological study of a highly hydrolytically stable phenylboronic acid ester containing benzothiazolyl in mineral oil. Appl. Surf. Sci. 308, 91–99 (2014)
Zhu, R.S., Zhang, J.B., Wang, Z.S.: Experimental investigation on the active control of sliding friction. Tribology 19(4), 311–315 (1999)
Zlsman, W.A.: The physical chemistry of surface films. Science 116, 548–549 (1952)
Huang, P., Meng, Y.G., Xu, H.: Tribology Course. Higher Education Press, Beijing (2007)
Childs, T.H.C., Maekawa, K., Obikawa, T., Yamane, Y.: Metal Machining—Theory and Applications. Arnold, London (2000)
Filippa, L., Trento, A., Álvarez, A.M.: Sauter mean diameter determination for the fine fraction of suspended sediments using a LISST-25X diffractometer. Measurement 45(3), 363–368 (2012)
Bhushan, B.: Principles and Applications of Tribology. Wiley, New York (1999)
Mang, T., Dresel, W.: Lubricants and Lubrications. Wiley, Weinheim (2001)
Liao, Y.S., Lin, H.M.: Mechanism of minimum quantity lubrication in high-speed milling of hardened steel. Int. J. Mach. Tools Manuf. 47(11), 1660–1666 (2007)
Morishita, S., Nakano, K., Kimura, Y.: Electroviscous effect of nematic liquid crystals. Tribol. Int. 26(6), 399–403 (1993)
Luo, J.B., Shen, M.W., Wen, S.Z.: Tribological properties of nanoliquid film under an external electric field. J. Appl. Phys. 96(11), 6733–6738 (2008)
Mahmound, M.M., Mohamed, M.K., Ali, W.Y.: Tribological behaviour of lubricated surfaces under application of electric current. Proc. Inst. Mech. Eng. Part J. J. Eng. Tribol. 224(1), 73–79 (2010)
Xie, G.X., Li, G., Luo, J.B., Liu, S.H.: Effects of electric field on characteristics of nano-confined lubricant films with ZDDP additive. Tribol. Int. 43(5–6), 975–980 (2010)
Schey, J.A.: Tribology in metalworking: friction, lubrication and wear. American Society for Metals, Ohio (1983)
Chen, R.J., Zhai, W.J., Qi, Y.L.: The mechanism and technology of friction control by applying electric voltage II: the effects of applied voltage on friction. Tribology 16(3), 235–238 (1996)
Thepsonthi, T., Hamdi, M., Mitsui, K.: Investigation into minimal-cutting-fluid application in high-speed milling of hardened steel using carbide mills. Int. J. Mach. Tools Manuf. 49(2), 156–162 (2009)
Bartenev, G.M., Lavrentev, V.V.: Friction and Wear of Polymers. Elsevier Scientific Publishing Company, Amsterdam (1981)
Zhang, R.J., Li, S.H., Jin, Y.S.: FT-IR and Raman spectroscopic evaluation of products derived from pyrolyzed lubricant during friction and wear. J. Tsinghua Univ. (Sci. Technol.) 43(5), 648–650 (2003)
John, F.M., Jill, C.: Handbook of X-Ray Photoelectron Spectroscopy. Perkin-Elmer Corporation, Waltham (1992)
Muhler, M., Schlögl, R., Ertl, G.: The nature of the iron oxide-based catalyst for dehydrogenation of ethylbenzene to styrene 2. Surface chemistry of the active phase. J. Catal. 138(2), 413–444 (1992)
Roosendaal, S.J., Asselen, B.V., Elsenaar, J.W., Vredenberg, A.M., Habraken, F.H.P.M.: The oxidation state of Fe(100) after initial oxidation in O2. Surf. Sci. 442(3), 329–337 (1999)
Mills, P., Sullivan, J.L.: Study of the core level electrons in iron and its three oxides by means of X-ray photoelectron spectroscopy. J. Phys. D Appl. Phys. 16(5), 723–732 (1983)
Yamashita, T., Hayes, P.: Analysis of XPS spectra of Fe2+ and Fe3+ ions in oxide materials. Appl. Surf. Sci. 254(8), 2441–2449 (2008)
Srivastava, S., Badrinarayanan, S., Mukhedkar, A.J.: X-ray photoelectron spectra of metal complexes of substituted 2, 4-pentanedionses. Polyhedron 4(3), 409–414 (1985)
Han, N., Shui, L., Lui, W.M., Xue, Q.J., Sun, Y.S.: Study of the lubrication mechanism of olefin sulfide. Tribology 22(1), 49–53 (2002)
Kajdas, C.K.: Importance of the triboemission process for tribochemical reaction. Tribol. Int. 38(3), 337–353 (2005)
Guan, J.J., Xu, X.F., Li, G., Peng, W.: Preparation and tribological properties of inclusion complex of β-cyclodextrin/dialkyl pentasulfide as additive in PEG-600. Appl. Surf. Sci. 289, 400–406 (2014)
Savenko, V.I., Shchukin, E.D.: New applications of the Rehbinder effect in tribology: a review. Wear 194(1–2), 86–94 (1996)
Acknowledgments
This study was financially supported by the National Natural Science Foundation of China (Grant No. 51375454), and authors are grateful to Dr. Huan Zhou for guidance of XPS analysis.
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Huang, S., Yao, W., Hu, J. et al. Tribological Performance and Lubrication Mechanism of Contact-Charged Electrostatic Spray Lubrication Technique. Tribol Lett 59, 28 (2015). https://doi.org/10.1007/s11249-015-0559-5
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DOI: https://doi.org/10.1007/s11249-015-0559-5