Experimental Investigation to Achieve Minimum Surface Roughness in Wire EDM Process

2019 ◽  
pp. 239-251
Author(s):  
K. P. M. Priyankara ◽  
G. I. P. Perera
Keyword(s):  
Surface Roughness ◽  
Experimental Investigation ◽  
Wire Edm ◽  
Minimum Surface ◽  
Edm Process

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

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.

scholarly journals A Study to Achieve Minimum Surface Roughness in Wire EDM

2014 ◽  
Vol 5 ◽  
pp. 2560-2566 ◽  
Author(s):  
Anmol Bhatia ◽  
Sanjay Kumar ◽  
Parveen Kumar
Keyword(s):  
Surface Roughness ◽  
Wire Edm ◽  
Minimum Surface

scholarly journals Electrical discharge machining with graphene flakes in dielectric

Mechanik ◽  
2017 ◽  
Vol 90 (3) ◽  
pp. 186-187 ◽  
Author(s):  
Rafał Świercz
Keyword(s):  
Surface Roughness ◽  
Experimental Investigation ◽  
Statistical Analysis ◽  
Process Parameters ◽  
Electrical Discharge ◽  
Electrical Discharge Machining ◽  
Graphene Flakes ◽  
Analysis Of Results ◽  
Edm Process

The article presents statistical analysis of results experimental investigation of EDM process with graphene flakes in dielectric. The relations between surface roughness and process parameters have been determined.

A New Approach in Surface Roughness and Roundness Improvement in Wire Electrical Discharge Turning Based on Statistical Analyses

2006 ◽  
Author(s):  
Aminollah Mohammadi ◽  
Alireza Fadaei Tehrani ◽  
Davoud Karimi ◽  
Ehsan Emanian
Keyword(s):  
Surface Roughness ◽  
Electrical Discharge ◽  
Machining Parameters ◽  
Wire Edm ◽  
Analysis Method ◽  
Signal To Noise ◽  
New Approach ◽  
Good Improvement ◽  
Level Of Importance ◽  
Edm Process

In this paper, the effects and optimization of machining parameters on surface roughness and roundness in turning by wire EDM process are investigated. Surface roughness and roundness, were chosen, as the machining parameters to verify the process. In addition, power, time-off, voltage, servo, wire speed, wire tension and rotational speed were adopted for evaluation by Taguchi method. A L18 (21 × 37) Taguchi standard orthogonal array is chosen for the design of experiments. The level of importance of the machining parameters on the surface roughness and roundness is determined by using analysis of variance (ANOVA). The optimum machining parameters combination was obtained by using the analysis of signal-to-noise (S/N) ratio. The variation of surface roughness and roundness with machining parameters is mathematically modeled by using regression analysis method. Finally, experimentation was carried out to identify the effectiveness of the proposed method. A good improvement was obtained.

Optimization of Recast Layer Thickness and Surface Roughness in the Wire EDM Process of AISI H13 Tool Steel Using Taguchi and Fuzzy Logic

2014 ◽  
Vol 493 ◽  
pp. 529-534 ◽  
Author(s):  
Pathya Rupajati ◽  
Bobby Oedy Pramoedyo Soepangkat ◽  
Bambang Pramujati ◽  
H.C. Kis Agustin
Keyword(s):  
Surface Roughness ◽  
Fuzzy Logic ◽  
Taguchi Method ◽  
Layer Thickness ◽  
Fuzzy Reasoning ◽  
Recast Layer ◽  
Performance Characteristics ◽  
Wire Edm ◽  
Recast Layer Thickness ◽  
Edm Process

In this study, the optimization of recast layer thickness and surface roughness (SR) simultaneously in a Wire-EDM process by using Taguchi method with fuzzy logic has been applied. The Wire-EDM process parameters (arc on time, on time, open voltage, off time and servo voltage) were optimized with considerations of multiple performance characteristics, i.e., recast layer thickness and SR. Based on the Taguchi method, an L18 mixed-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.

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