State of the Art in Dry Electric Discharge Machining Process: A Critical Review

2021 ◽  
pp. 245-253
Author(s):  
Mrityunjaya Chauhan ◽  
Gangadharudu Talla
Keyword(s):  
Electric Discharge ◽  
Critical Review ◽  
State Of The Art ◽  
Machining Process ◽  
Electric Discharge Machining

Temperature Field Simulation of Anode Erosion in Electric Discharge Machining

2010 ◽  
Vol 455 ◽  
pp. 345-349
Author(s):  
B.C. Xie ◽  
Zhen Long Wang ◽  
Yu Kui Wang ◽  
Jing Zhi Cui
Keyword(s):  
Temperature Field ◽  
Electric Discharge ◽  
Material Removal ◽  
Machining Process ◽  
Model Parameters ◽  
Temperature Dependent ◽  
Electric Discharge Machining ◽  
Field Simulation ◽  
Simulation And Experiment ◽  
Anode Erosion

In this paper, a thermo-physical model of the electric discharge machining process using finite element method is presented. In this model, parameters such as convection, the latent heat and the thermal properties based on temperature dependent etc. are studied to predict the temperature distribution in the workpiece. The temperature field simulation and experiment were carried out by adopting parameters through optimum pulse curve, and amending the effects of recast layer, the simulation results amended shows a better agreement with experimental results, indicating a theoretical foundation for mechanism of material removal in EDM machining.

Optimization of electric discharge machining process parameters on AA6351-Al2O3 composites

2020 ◽  
Vol 27 ◽  
pp. 1051-1054
Author(s):  
M. Meignanamoorthy ◽  
M. Ravichandran ◽  
S. Sakthivelu ◽  
S. Dinesh Kumar ◽  
C. Chanakyan ◽  
...  
Keyword(s):  
Process Parameters ◽  
Electric Discharge ◽  
Machining Process ◽  
Electric Discharge Machining

scholarly journals A Simple Procedure for Searching Pareto Optimal Front in Machining Process: Electric Discharge Machining

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Ushasta Aich ◽  
Simul Banerjee
Keyword(s):  
Electric Discharge ◽  
Removal Rate ◽  
Simple Procedure ◽  
Operating Conditions ◽  
Machining Process ◽  
Optimum Process ◽  
Pareto Optimal ◽  
Electric Discharge Machining ◽  
Optimum Process Parameter ◽  
Pareto Optimal Front

Optimum control parameter setting in complex and stochastic type processes is one of the most challenging problems to the process engineers. As such, effective model development and determination of optimal operating conditions of electric discharge machining process (EDM) are reasonably difficult. In this apper, an easy to handle optimization procedure, weight-varying multiobjective simulated annealing, is proposed and is applied to optimize two conflicting type response parameters in EDM—material removal rate (MRR) and average surface roughness (Ra) simultaneously. A solution set is generated. The Pareto optimal front thus developed is further modeled. An inverse solution procedure is devised so that near-optimum process parameter settings can be determined for specific need based requirements of process engineers. The results are validated.

Finite element modeling and analysis of powder mixed electric discharge machining process for temperature distribution and volume removal considering multiple craters

2014 ◽  
Vol 05 (03) ◽  
pp. 1450009 ◽  
Author(s):  
Hardeep Singh ◽  
Anirban Bhattacharya ◽  
Ajay Batish
Keyword(s):  
Finite Element ◽  
Temperature Distribution ◽  
Finite Element Modeling ◽  
Electric Discharge ◽  
Material Removal ◽  
Peak Temperature ◽  
Machining Process ◽  
Electric Discharge Machining ◽  
Element Modeling ◽  
Pulse On Time

Powder mixed electric discharge machining (PMEDM) is one of the modern developments in electric discharge machining (EDM) process. In the present work, finite element modeling has been carried out considering randomly oriented multiple sparks during PMEDM. Transient thermal analysis is done to obtain temperature distribution, volume removal, and proportion of volume removed by melting and evaporation at different current, pulse on time and fraction of heat that enters to work piece. Gradually growing spark behavior and Gaussian distribution of heat source is used to simulate multiple craters. Temperature distribution along radial direction shows peak temperature at center of spark and thereafter a gradual decrease with increase in radial distance. Along depth direction temperature sharply decreases that forms wider craters with shallow depth in PMEDM. Peak temperature and volume removal increases with current more rapidly. Volume removal by melting is much higher than evaporation at lower current settings and with higher current almost equal amount of material is removed by melting and evaporation thus reducing the re-solidification of melted material. Current plays a significant role behind the contribution of material removal by evaporation followed by fraction of heat. Increase in pulse on duration increases the total volume of material removal however does not significantly increase the proportion of volume removal by vaporization.

Thermal and mechanical numerical modelling of electric discharge machining process

2008 ◽  
Vol 24 (12) ◽  
pp. 2021-2034 ◽  
Author(s):  
Nizar Ben Salah ◽  
Farhat Ghanem ◽  
Kaïs Ben Atig
Keyword(s):  
Numerical Modelling ◽  
Electric Discharge ◽  
Machining Process ◽  
Electric Discharge Machining
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