Micro-machining and Process Optimization of Electrochemical Discharge Machining (ECDM) Process by TOPSIS Method

The principles of ECDM and micro-milling were described in the article. The ECDM technology and micro-milling technology were combined, and a milling platform was designed, through the analysis of the affecting factors in the processing, the Pyrex glass was machined by using the electrochemical discharge micro-milling machining and the experiment results were discussed. The results showed that the electrochemical discharge milling machining had a good prospect for the micro machining of the non-conductive materials.

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Micro-Hole Machined by Electrochemical Discharge Machining (ECDM) with High Speed Rotating Cathode

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.295-297.1794 ◽

2011 ◽

Vol 295-297 ◽

pp. 1794-1799 ◽

Cited By ~ 9

Author(s):

Shao Fu Huang ◽

Di Zhu ◽

Yong Bin Zeng ◽

Wei Wang ◽

Yong Liu

Keyword(s):

High Speed ◽

Electrochemical Machining ◽

304 Stainless Steel ◽

Machining Accuracy ◽

Micro Machining ◽

Rotating Speed ◽

Electrochemical Discharge Machining ◽

Electrochemical Discharge ◽

Micro Holes ◽

Micro Hole

Electrochemical discharge machining (ECDM), based on electrochemical machining (ECM) and electrodischarge machining (EDM), is an unconventional micro-machining technology. In this paper, with the use of water, the process of micro hole on ANSI 304 stainless steel machined by micro-ECDM with high speed rotating cathode is studied. The effects of machining conditions such as the cathode rotating speed and cathode diameter on the surface quality and accuracy of the shape are investigated. The results indicate that a relatively higher electrode rotating speed can improve the machining accuracy of the micro-holes and reduce the electrodes wear.

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Investigation on Electrochemical Discharge Micro-Machining of Silicon Carbide

International Journal of Materials Forming and Machining Processes ◽

10.4018/ijmfmp.2017070103 ◽

2017 ◽

Vol 4 (2) ◽

pp. 29-44 ◽

Cited By ~ 2

Author(s):

B.R. Sarkar ◽

B. Doloi ◽

B. Bhattacharyya

Keyword(s):

Silicon Carbide ◽

Material Removal ◽

Removal Rate ◽

Machining Parameters ◽

Micro Machining ◽

Electrode Gap ◽

Multi Objective ◽

Electrochemical Discharge Machining ◽

Electrochemical Discharge ◽

Conducting Materials

Electrochemical discharge machining (ECDM) process has great potential to machine hard, brittle and electrically non-conducting materials in micron range. The objective of this paper is to investigate into electrochemical discharge micro-machining on electrically semi-conductor type silicon carbide (SiC) material so as to study the effects of applied voltage, electrolyte concentration and inter-electrode gap on material removal rate (MRR) and radial overcut (ROC) of micro-drilled hole. Experiments were conducted based on L9 array of Taguchi method with stainless steel µ-tool of 300µm diameter using NaOH electrolyte. An attempt has been made to find out the single as well as multi-objective optimal parametric combinations for maximum MRR and minimum ROC. The single-objective parametric combinations were selected as 45V/20wt%/20mm and 25V/20wt%/40mm for maximum MRR and minimum ROC respectively whereas multi-objective optimal parametric combinations was found as 25V/20wt%/40mm. Further mathematical models have been developed between the above machining parameters and characteristics.

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Review On Recent Advances, Research Trends and Gas Film in Electrochemical Discharge Based Micro-Machining (ECDM)

Journal of Micro and Nano-Manufacturing ◽

10.1115/1.4049418 ◽

2020 ◽

Author(s):

Viveksheel Rajput ◽

Mudimallana Goud ◽

N M Suri

Keyword(s):

Tool Electrode ◽

Micro Machining ◽

Chemical Dissolution ◽

Thermal Heating ◽

Electrical Parameters ◽

Machining Performance ◽

Thermal Cracks ◽

Electrochemical Discharge Machining ◽

Electrochemical Discharge ◽

Input Parameters

Abstract Electrochemical discharge machining (ECDM) is distinguished as a novel process that involves thermal heating and chemical dissolution for the micro-machining of "difficult-to-machine" materials like ceramics, quartz. This paper comprehensively reviews the study on gas film, the effect of various input parameters on ECDM performance, such as electrical parameters, electrolyte parameters, and tool electrode parameters, are also likewise discussed. Moreover, a summarized report on thermal modeling, gas film, discrete input parameters, hybridization, and variants in the ECDM process are also provided in a lucid manner. Based on the review, it is concluded that the machining performance of the ECDM process especially in terms of MRR, roughness, tool wear, and thermal cracks are strongly influenced by the input parameters. The formation of the gas film induces variable machining features that can be controlled by altering the machining conditions. Additionally, the paper highlights the future areas that may leads to improve the overall machining performance of the ECDM process.

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