Structure and Composition of the White Layer in the Wire-EDM Process

In this study, the optimization of material removal rate (MRR) and surface roughness (SR) simultaneously in a WEDM process by using Taguchi method with fuzzy logic has been applied. The Wire EDM process parameters (flushing pressure, on time, open voltage, off time and servo voltage) were optimized with considerations of multiple performance characteristics, i.e., MRR and SR. Based on the Taguchi method, an L18mixed-orthogonal array table was chosen for the experiments. Fuzzy reasoning of the multiple performance characteristics has been developed based on fuzzy logic, which then converted into a fuzzy reasoning grade or FRG. As a result, the optimization of complicated multiple performance characteristics was transformed into the optimization of single response performance index. Experimental results have shown that machining performance characteristics of Wire EDM process can be improved effectively through the combination of Taguchi method and fuzzy logic.

Download Full-text

Dual-axial Ultrasonic Assisted Wire-EDM Process with Vibration Exerted through the Upper Guide

Procedia CIRP ◽

10.1016/j.procir.2020.02.262 ◽

2020 ◽

Vol 95 ◽

pp. 319-324

Author(s):

Albert Wen-Jeng Hsue ◽

Zih-Siou Su ◽

Yang-Lei Lin

Keyword(s):

Wire Edm ◽

Ultrasonic Assisted ◽

Edm Process

Download Full-text

Predictive analysis and multi objective optimization of wire-EDM process using ANN

Materials Today Proceedings ◽

10.1016/j.matpr.2020.12.830 ◽

2021 ◽

Author(s):

M. Arunadevi ◽

C.P.S. Prakash

Keyword(s):

Predictive Analysis ◽

Wire Edm ◽

Multi Objective Optimization ◽

Multi Objective ◽

Edm Process

Download Full-text

Multi-Response Optimization of Wire-EDM Process Parameters of Titanium Alloy Using Taguchi Method and Grey Relational Analysis

Applied Mechanics and Materials ◽

10.4028/www.scientific.net/amm.772.245 ◽

2015 ◽

Vol 772 ◽

pp. 245-249

Author(s):

A. Ramamurthy ◽

R. Sivaramakrishnan ◽

S. Venugopal ◽

T. Muthuramalingam

Keyword(s):

Titanium Alloy ◽

Process Parameters ◽

Grey Relational Analysis ◽

Wire Edm ◽

Relational Analysis ◽

Response Optimization ◽

Grey Relational ◽

Pulse On Time ◽

Pulse Off Time ◽

Edm Process

It is very important and complexity to find the optimum values of wire EDM process parameters and contribution of each parameter to attain the better performance characteristics. In this study, an attempt has been made to optimize those parameters while machining the titanium alloy. Since the process involves more one than one response parameter, it is essential to carry out the multi-response optimization methodology .The experiments have been conducted with different levels of input factors such as pulse on time,pulse off time and wire tension based on Taguchi L9 orthogonal table.Wire EDM optimal process parameter has been identified using grey relational analysis and significant parameter has been determined by analysis of variance. Experimental results have indicated that the multi-response characteristic such as material removal rate and surface roughness can be improved effectively through grey relational analysis.

Download Full-text

Study of wire-electrical discharge machining parameters of titanium alloy by using taguchi method

International Journal of Engineering & Technology ◽

10.14419/ijet.v7i2.8.10316 ◽

2018 ◽

Vol 7 (2.8) ◽

pp. 10

Author(s):

A VS Ram Prasad ◽

Koona Ramji ◽

B Raghu Kumar

Keyword(s):

Surface Roughness ◽

Taguchi Method ◽

Process Parameters ◽

Optimization Technique ◽

Machining Process ◽

Machining Parameters ◽

Wire Edm ◽

Pulse On Time ◽

Pulse Off Time ◽

Edm Process

Machining of Titanium alloys is difficult due to their chemical and physical properties namely excellent strength, chemical reactivity and low thermal conductivity. Traditional machining of such materials leads to formation of continuous chips and tool bits are subjected to chatter which leads to formation of poor surface on machined surface. In this study, Wire-EDM one of the most popular unconventional machining process which was used to machine such difficult-to-cut materials. Effect of Wire-EDM process parameters namely peak current, pulse-on- time, pulse-off-time, servo voltage on MRRand SR was investigated by Taguchi method. 0.25 mm brass wire was used in this process as electrode material. A surface roughness tester (Surftest 301) was used to measure surface roughness value of the machined work surface. A multi-response optimization technique was then utilized to optimize Wire-EDM process parameters for achieving maximum MRR and minimum SR simultaneously.

Download Full-text