Experimental Studies on the Effect of Drilling Parameters on Monel Alloy

Abstract:

Monel K-500 is a Nickel based super alloy which have superlative properties such as high strength, resistance to corrosion, retention of mechanical properties at service temperature and structural stability. It finds wide application in aerospace application, nuclear reactor, gas turbines, submarines, combustion engine exhaust valve, petro chemical components, heat exchanger, etc. However, during machining of super alloys, difficulties are there due to its low thermal conductivity and work hardening effect. Challenges in conventional machining can be minimized by using suitable machining as well as process parameters. Among the different machining processes, not much work has been initiated on drilling of above super alloys. Normally, drilled holes are used in screws, bolts, shafts, steam pipes, fitting of furniture and other equipments. By considering the applications and difficulties in machining of super alloys, drilling experiment is selected on Monel K-500. Experiments were conducted as per Taguchi’s L9 orthogonal array using process parameters such as different drill tool material, drilling speed, feed and cutting fluids and Surface roughness and MRR values were measured as output responses. Effect of selected process parameters on the above machinability responses were analyzed. Optimum process parameters were identified to improve the machinability of Monel K-500.

• Periodical: Materials Science Forum (Volume 979)
• Pages: 137-141
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.979.137
• Online since: March 2020
• Authors: K. Jayakumar*, K. Akash Koundinya, T. Jayakumar, M. Harshal, G. Gopinath
• Keywords: Drilling Studies, Material Removal Rate, Monel K-500 Alloy, Optimization of Drilling Parameter, Surface Roughness

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