Effect of ball end milling parameters on surface and subsurface of Inconel-718

  • Authors

    • Nandkumar Bhopale DR. BATU, Lonere
    • Raju pawade DR. BATU, Lonere
  • Ball End Mill, Environment, HSM, Inconel-718, Microhardness.
  • Inconel-718 has poor machinability due to this; it is leading to severe low surface integrity. The paper discusses the effect of ball end milling parameters on surface integrity produced during dry and chilled machining environment. In this work, the variable depth of cut concept of Scattergood is used to describe the influence of machining process parameters on the machined surface. Taguchi orthogonal (L8) experiments were designed considering five input parameters. The surface integrity in terms of arithmetic average surface roughness Ra and the microhardness is analysed in this paper. The results show that the dry machining was beneficial for surface integrity.

  • References

    1. [1] R. Arunachalam, M. A. Mannan. Machinability of nickel-based high temperature alloys. J Mach Sci and Technol, 2000, 4, 127-168. http://dx.doi.org/10.1080/10940340008945703.

      [2] E. O. Ezugwu, J. Bonney, Y. Yamane .An overview of the machinability of aero Engine alloy. J Mate Process Technol, 2003, 135, 233-253. http://dx.doi.org/10.1016/S0924-0136(02)01042-7.

      [3] Harshad A. Sonawane, Suhas S. Joshi Analytical modeling of chip geometry and cutting forces in helical ball end milling of super alloy Inconel 718. CIRP Manuf Technol, 2010, 3, 204. http://dx.doi.org/10.1016/j.cirpj.2010.11.003.

      [4] Irfan Ucun, KubilayAslantas, FevziBedir, An experimental investigation of the effect of coating material on tool wear in micro milling of Inconel 718. Wear, 2013, 300, 8-19. http://dx.doi.org/10.1016/j.wear.2013.01.103.

      [5] M.C. Shaw Metal Cutting Principles. Clarendon press Oxford Magazine, 17, 1947.

      [6] Nandkumar N. Bhopale, Raju S. Pawade & Suhas S.Joshi Experimental Investigation into the effect of Ball end milling parameters on Surface Integrity of Inconel 718. J of Mate Engg and Perform, 2014, 23.

      [7] R.S. Pawade, S.S. Joshi, P.K. Brahmankar. Effect of cutting edge geometry and maching parameters on surface integrity of high-speed turned Inconal 718. J Mach Tools and Manuf, 2008, 48, 15-28. http://dx.doi.org/10.1016/j.ijmachtools.2007.08.004.

      [8] Aspinwall DK. Sharman RC. High speed ball nose end milling of Inconel 718. ClRP Ann Manuf Technol, 2001, 49, 41-46.

      [9] K.D. Bouzakis, P. Aichouh, K. Efstathiou. Determination of the chip geometry, cutting force and roughness in free form surfaces finishing milling with ball end tools. J Mach Tools Manuf, 2003, 43, 499–514. http://dx.doi.org/10.1016/S0890-6955(02)00265-1.

      [10] Harshad A. Sonawane, Suhas S. Joshi. Analysis of machined surface quality in a Single-pass of ball-end milling on Inconel 718. J Manuf Process, 2012, 14, 257 – 268. http://dx.doi.org/10.1016/j.jmapro.2012.03.003.

      [11] Mizugaki Y, Kikkawa K, Terai H, Hao M. Theoretical estimation of machined surface profile based on cutting edge movement and tool orientation in ball nosed end milling. CIRP Ann, 2003, 52, 49–52. http://dx.doi.org/10.1016/S0007-8506(07)60528-9.

      [12] A. Shokrani, V. Dhokia, S.T Newman, R. Imani-Asrai. An initial study of the effect of using liquid nitrogen coolant on the surface roughness of Inconel 718 in CNC milling. CIRP, 2012, 3, 121 -125. http://dx.doi.org/10.1016/j.procir.2012.07.022.

      [13] M.S. Kasim, C.H.CheHaron, J.A.Ghani, M.A.Sulaiman, M.Z.A.Yazid. Wear mechanism and notch wear location prediction model in ball nose end milling of Inconel 718. Wear, Article in press, 2013. http://dx.doi.org/10.1016/j.wear.2012.12.040.

      [14] G.K. Dosbaeva, S.C. Veldhuis, A. Elfizy, G. Fox-Rabinovich, and T. Wagg. Microscopic observations on the origin of defects during machining of direct aged Inconel 718. Journal of Materials Engg and Performance, 2010, 19, 1193–1198. http://dx.doi.org/10.1007/s11665-009-9587-3.

      [15] Bulent Kaya, Cuneyt Oysu, Huseyin M. Ertunc. Force-torque based on-line tool wear estimation system for CNC milling of Inconel 718 using neural networks. Adv engg soft, 2011, 42, 76-84.

      [16] Kennametal Master Tooling Catalog. Sustainable solution for Aerospace Manufacturing and Advance Material for a new generation, 2012.

      [17] D.C. Montgomery. Design and Analysis of Experiments. John Wiley and Sons, New York, 4th Edition, 1997.

      [18] Brian Griffiths. Manufacturing Surface Technology. Elsev Sci and Technol 1st Edition, 2001.

      [19] S. Zhang, T. C. Ding and J. F. Li. Microstructural alteration and microhardness at near surface of AISI H13 steel by hard milling. J Mach Sci and Technol, 2012, 16, 473-486. http://dx.doi.org/10.1080/10910344.2012.699387.

      [20] Bhopale N.N. and R. S. Pawade. Investigation of SurfaceIntegrity in High-speed Ball End Milling of Cantilever Shaped Thin Plate of Inconel 718. Journal of Achievements in Materials and Manufacturing Engineering, 2012, 55, 616-622.

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  • How to Cite

    Bhopale, N., & pawade, R. (2014). Effect of ball end milling parameters on surface and subsurface of Inconel-718. International Journal of Basic and Applied Sciences, 4(1), 66-72. https://doi.org/10.14419/ijbas.v4i1.3823