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Optimization of Machining Parameters on Electrochemical Micro Machining of Hastelloy C22 Using Grey Taguchi Method


Affiliations
1 Dept. of Mech. Engg., SRM University, Chennai, Tamil Nadu, India
2 Dept. of Automobile Engg., Hindustan University, Chennai, Tamil Nadu, India
 

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Electro Chemical Machining (ECM) is a process that is used to machine extremely hard materials easily. It is a non-contact machining process. This ensures a higher tool life and no friction generated. The entire process is based on faradays laws of electrochemical process. With no heat affected zones (HAZ), this process holds a significant advantage over other high precision processes. This ensures that the material has neither thermal nor any other residual stresses. Nickel based alloys are known for their hardness and non-corrosive properties. This makes them unviable for machining using conventional methods as the overhead costs rise and makes them unproductive for use. ECM provides a better alternative comparatively. The alloy chosen for this analysis is Hastelloy C22. Its higher chromium content gives it better corrosion and pitting resistance. The objective of this analysis is to find the effects of various process parameters on MRR, surface finish, and dimensional deviation. The Taguchi technique has been used to investigate the effects of the ECMM process parameters and subsequently to predict sets of optimal parameters for maximum MRR and better surface finish. Grey analysis is done to find the optimal set of parameters for machining.

Keywords

Hastelloy C22, Machining, Material Removal, Optimization.
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PDF Views: 154




  • Optimization of Machining Parameters on Electrochemical Micro Machining of Hastelloy C22 Using Grey Taguchi Method

Abstract Views: 372  |  PDF Views: 154

Authors

R. Manoj Samson
Dept. of Mech. Engg., SRM University, Chennai, Tamil Nadu, India
A. C. Arun Raj
Dept. of Mech. Engg., SRM University, Chennai, Tamil Nadu, India
T. Geethapriyan
Dept. of Mech. Engg., SRM University, Chennai, Tamil Nadu, India
S. Senkathir
Dept. of Mech. Engg., SRM University, Chennai, Tamil Nadu, India
S. Jenoris Muthiya
Dept. of Automobile Engg., Hindustan University, Chennai, Tamil Nadu, India

Abstract


Electro Chemical Machining (ECM) is a process that is used to machine extremely hard materials easily. It is a non-contact machining process. This ensures a higher tool life and no friction generated. The entire process is based on faradays laws of electrochemical process. With no heat affected zones (HAZ), this process holds a significant advantage over other high precision processes. This ensures that the material has neither thermal nor any other residual stresses. Nickel based alloys are known for their hardness and non-corrosive properties. This makes them unviable for machining using conventional methods as the overhead costs rise and makes them unproductive for use. ECM provides a better alternative comparatively. The alloy chosen for this analysis is Hastelloy C22. Its higher chromium content gives it better corrosion and pitting resistance. The objective of this analysis is to find the effects of various process parameters on MRR, surface finish, and dimensional deviation. The Taguchi technique has been used to investigate the effects of the ECMM process parameters and subsequently to predict sets of optimal parameters for maximum MRR and better surface finish. Grey analysis is done to find the optimal set of parameters for machining.

Keywords


Hastelloy C22, Machining, Material Removal, Optimization.

References





DOI: https://doi.org/10.4273/ijvss.10.2.07