Author : E. Sivakumari 1
Date of Publication :30th September 2017
Abstract: Nickel base super alloy has the combined property of “high mechanical strength†and “High heat and corrosion resistance†at elevated temperature. This is the reason for which Nickel based super alloy are extremely used in Aircraft, Aerospace, Submarine and chemical industries. Machining of Nimonic C-263 has always been a challenging task owing to its hot strength, low thermal conductivity, tendency to work harden and affinity towards tool materials. Although coated tools have been used to overcome some of these challenges, selection of coated tool with appropriate deposition technique is of immense significance. The current study attempts to comparatively evaluate various performance parameters in machining of Nimonic C- 263 such as surface roughness, cutting force, tool temperature and tool wear. The tool materials used for this study are cubic boron nitride(CBN), ceramic and PVD coated TiAlN. To determine the effects of parameters selection on machining using Design of Experiments (DOE), Taguchi. L9 / L27 orthogonal array design of experiments was adopted to optimize the parameters. By using Taguchi and Grey Relational Analysis / Analysis of Variance (ANOVA) etc., an optimum value or the best value of surface roughness, cutting force, tool temperature and tool wear is obtained.
Reference :
-
- [1] C. Ezilarasan a, V.S. Senthil kumar, A. Velayudham,” An experimental analysis and measurement of process performances in machining of nimonic C-263 super alloy”, Measurement 46 (2013) 185–199
- Koyilada, S. Gangopadhyay, A. Thakur” Comparative evaluation of machinability characteristics of Nimonic C-263 using CVD and PVD coated tools”, Measurement 85 (2016) 152–163
- Shuho Koseki, Kenichi Inoue, Shigekazu Morito, Takuya Ohba, Hiroshi Usuki ”Comparison of TiNcoated tools using CVD and PVD processes during continuous cutting of Ni-based”, Surface & Coatings Technology 283 (2015) 353–363.
- Shuangqun Zhao, Xishan Xie , Gaylord D. Smith, Shailesh J. Patel “Microstructural stability and mechanical properties of a new nickel based super alloy Isothermal high temperature low cycle fatigue behaviour of Nimonic-263 Influence of typeI and typeII hot corrosion, Materials Science and Engineering A355 (2003) 96_/105
- P. Mastanaiaha, G. Madhusudhan Reddy, K. Satya Prasad, C.V.S. Murthy “An investigation on microstructures and mechanical properties of explosive cladded C103 niobium alloy over C263 nimonic alloy”, Journal of Materials Processing Technology 214 (2014) 2316–2324
- P Subhash, Chandra Bose & C S P Rao, “Evaluation of Optimum Cutting Parameters In Turning of NIMONIC 75 using RSM”, International Journal on Theoretical and Applied Research in Mechanical Engineering (IJTARME), ISSN: 2319 – 3182, Volume-2, Issue-2, 2013.