Experimental investigation of ultrasonic assisted pulse electrochemical drilling for INCONEL 718 with rotary tool

Dayanand S. Bilgi and Pradeep V. Jadhav

International Journal of Manufacturing Technology and Management, 2014, vol. 28, issue 1/2/3, 4-18

Abstract: Electrochemical machining (ECM) is widely used for machining variety of components used in aerospace, automotive and defence applications. The study focuses on the development of hybrid technology in ultrasonically assisted pulse electrochemical machining (USA-PECM) using rotating tool. This paper presents experimental investigation of USA-PECM using parameters such as voltage, pulse on-time, ultrasonic pulse on-time and duty cycle. The corresponding responses are material removal rate (MRR) and surface roughness (Ra). Taguchi's orthogonal array L₉ was used to study the effect of independent process parameters. The results show USA-PECM with rotating electrode has enhanced MRR and surface finish by 17.77% and 38.13% respectively. The experimental results were analysed using analysis of variance (ANOVA) method and plotting various graphs.

Keywords: ultrasonically assisted pulse ECM; electrochemical machining; USA-PECM; Taguchi methods; analysis of variance; ANOVA; surface roughness; surface quality; material removal rate; MRR; superalloys; electrochemical drilling; INCONEL 718; rotary tools; voltage; pulse on-time; duty cycle. (search for similar items in EconPapers)
Date: 2014
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