Experimental Investigations on Concentric Flow Dry Ultrasonic Assisted Wire Electric Discharge Machining (CFDUAWEDM) Using Regression Analysis

Authors

  • Bharat C Khatri School of Engineering, RK University, Rajkot, Gujarat, India
  • Pravin P. Rathod Department of Mechanical Engineering, Government Engineering College, Bhuj, Gujarat, India
  • C.D. Sankhavara School of Engineering, RK University, Rajkot, Gujarat, India

DOI:

https://doi.org/10.37591/tmd.v3i2.7712

Keywords:

Concentric flow, ultrasonic vibration, Dry WEDM, wire EDM, titanium alloy

Abstract

This paper presents an application of concentric flow mode of dry dielectric (compressed air) supply for ultrasonic assisted wire electric discharge machining process (CFDUAWEDM). The concentric flow mode of dielectric supply using ultrasonic assistance is expected to offers improved surface integrity, environmental and operator friendliness during wire electric discharge machining (WEDM) process. Experimental set up was developed wherein, the ultrasonic vibration was applied to the electrode wire using an ultrasonic stepped horn and compressed air was injected concentrically into the machining gap through a nozzle around wire. Experiments were performed varying control parameters and responses were recorded. Experimental results indicated that the cutting velocity was affected by current, kerf width of the cutting slot was significantly affected by the pressure and pulse off time. Moreover, air pressure influenced the surface roughness significantly. It was observed that there exists an optimal relationship between response parameters and amplitude. The empirical models of the cutting velocity, surface roughness and kerf width have been developed using the regression analysis to investigate the statistical behavior of process. Results obtained suggested that the concentric flow with ultrasonic assistance can be an alternate to conventionally used dry WEDM. Concentric flow with ultrasonic assistance of dielectric supply method has the potential to overcome inherent drawbacks of dry WEDM.

References

K.H. Ho, S.T. Newman. State of the art electrical discharge machining (EDM). International Journal of Machine Tools & Manufacture. 2003; 43: 1287–1300.

G. Byrne, E. Scholta. Environmentally clean machining process—a strategic approach. Ann. CIRP. 1993; 42: 471–474.

F.N. Leao, I.R. Pashby. A Review on the Use of Environmentally-Friendly Dielectric Fluids in Electrical Discharge Machining. Journal of Materials Processing Technology. 149 (2004) 341 346.

M. Kunieda, C. Furudate. High Precision Finish Cutting by Dry WEDM. CIRP Anals - Manufacturing Technology. 2001; 50: 121–124.

D. Kremer, C. Lhiaubet, A. Moisan. A Study of the Effect of Synchronizing Ultrasonic Vibrations with Pulses. Annals of the ClRP. 1991; 40(1): 1–4.

B.C. Khatri, P.P. Rathod, J.B. Valaki. Ultrasonic Vibration assisted Electric Discharge Machining (EDM) – A Research Review. Proceedings of the Institution of Mechanical Engineers, Part B: Journal of Engineering Manufacture doi:10.1177/0954405415573061(2014).

B.C. Khatri, Rathod P.P. Experimental Analysis of Concentric flow Dry Wire Electric Discharge Machining (CDWEDM). Proceedings of RK University’s First International Conference on Research & Entrepreneurship. Jan 5th and Jan 6th, 2016.

A.V. Shayan, R.A. Afza, R. Teimouri. Parametric study along with selection of optimal solutions in dry wire cut machining of cemented tungsten carbide (WC-Co). Journal of Manufacturing Processes. 2013; 15(4): 644–658.

R.B. Azhiri, R. Teimouri, M.G. Baboly. Application of Taguchi, ANFIS and grey relational analysis for studying, modeling and optimization of wire EDM process while using gaseous media. Int J Adv Manuf Technol. 2014; 71: 279–295.

R. Kashiry, R. Azar, R. Teimouri. Experimental investigation, intelligent modeling and multi-characteristics optimization of dry WEDM process of Al– SiC metal matrix composite. Journal of Manufacturing Processes. [Internet]. The Society of Manufacturing Engineers. 2013; 15 (4): 483–494.

K.T. Hoang, S.H. Yang. A study on the effect of different vibration-assisted methods in micro-WEDM. Journal of Materials Processing Technology. 2013; 213: 1616–1622.

K.T. Hoang, S.H. Yang. Experimental Study and Process Optimization for Vibration-assisted Dry Micro-WEDM. J. Korean Soc. Precis. Eng. 2014; 31(3): 215–222.

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Published

2024-03-12

Issue

Vol. 3 No. 2 (2016)

Section

Articles

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