Commenced in January 2007
Paper Count: 31515
Process Optimisation for Internal Cylindrical Rough Turning of Nickel Alloy 625 Weld Overlay
Abstract:Nickel-based superalloys are generally known to be difficult to cut due to their strength, low thermal conductivity, and high work hardening tendency. Superalloy such as alloy 625 is often used in the oil and gas industry as a surfacing material to provide wear and corrosion resistance to components. The material is typically applied onto a metallic substrate through weld overlay cladding, an arc welding technique. Cladded surfaces are always rugged and carry a tough skin; this creates further difficulties to the machining process. The present work utilised design of experiment to optimise the internal cylindrical rough turning for weld overlay surfaces. An L27 orthogonal array was used to assess effects of the four selected key process variables: cutting insert, depth of cut, feed rate, and cutting speed. The optimal cutting conditions were determined based on productivity and the level of tool wear.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.1129908Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 672
References:J. Davis, “Hardfacing, Weld Cladding, and Dissimilar Metal Joining,” in ASM Handbook Volume 6 - Welding, Brazing, and Soldering, ASM International, 1993, pp. 789-829.
 M. Brožek, “Cutting conditions optimization when turning overlays,” Journal of Materials Processing Technology, vol. 168, pp. 488-495, 2005.
 M. Brožek, “The turning of overlays using sintered carbide tools,” International Journal of Advanced Manufacturing Technology, vol. 40, pp. 438-446, 2009.
 M. Munawar, J. Chen and N. Mufti, “Investifation of cutting parameters effect for minimization of surface roughness in internal turning,” International Journal of Prevision Engineering Manufacturing, vol. 12, no. 1, pp. 121-127, 2011.
 E. Ezugwu, Z. Wang and A. Machado, “The machinability of nickel-based alloys: a review,” Journal of Materials Processing Technology, vol. 86, pp. 1-16, 1999.
 Nickel Development Institute, Machining Nickel Alloys, 1992.
 S. Turner, M. Taylor, A. Etxeberria and P. Arrazola, “Machinability of the Nickel Alloys Inconel 625 and 718,” in 23rd AeroMat Conference and Exposition, Charlotte, NC, 2012.
 J. Petrů, T. Zlámal, R. Čep, M. Pagáč and M. Grepl, “Influence of strengthening effect on machinability of the welded Inconel 625 and of the wrought Inconel 625,” in 6th International Multi-Conference on Engineering and Technological Innovation, Orlando, FL, 2013.
 P. Matimuthu and R. Baskaran, “Optimal setting of machining parameters for turning Inconel 625 using coated tool,” Applied Mechanics and Materials, vol. 573, pp. 632-637, 2014.
 A. Altin, “Machining of Nickel based super alloy based on the Taguchi Method,” in 24th International Conference on Metallurgy and Materials, Brno, 2015.
 H. Jain, J. Tripathi, R. Bharilya, S. Jain and A. Kumar, “Optimisation and evaluation of machining parameters for turning operation of Inconel 625,” Materials Today: Proceedings 2, pp. 2306-2313, 2015.
 L. Chan, S. Shyha, D. Dreyer and J. Hamilton, “Optimisation of weld overlay cladding parameters using full-factorial design of experiment,” Materials Science Forum, vol. 880, pp. 54-58, 2017.