An Approach to Identification and Multicriterion Optimization of EDM Process

1983 ◽  
pp. 291-296 ◽  
Author(s):  
A. Osyczka ◽  
J. Zimny ◽  
J. Zajac ◽  
M. Bielut
Keyword(s):  
Multicriterion Optimization ◽  
Edm Process

Effect of SiC-Cu Electrode on Material Removal Rate, Tool Wear and Surface Roughness in EDM Process

2020 ◽  
Vol 38 (9A) ◽  
pp. 1406-1413
Author(s):  
Yousif Q. Laibia ◽  
Saad K. Shather
Keyword(s):  
Surface Roughness ◽  
Tool Wear ◽  
Material Removal Rate ◽  
Material Removal ◽  
Electrical Discharge Machining ◽  
Removal Rate ◽  
304 Stainless Steel ◽  
Tool Electrode ◽  
Pulse Time ◽  
Edm Process

Electrical discharge machining (EDM) is one of the most common non-traditional processes for the manufacture of high precision parts and complex shapes. The EDM process depends on the heat energy between the work material and the tool electrode. This study focused on the material removal rate (MRR), the surface roughness, and tool wear in a 304 stainless steel EDM. The composite electrode consisted of copper (Cu) and silicon carbide (SiC). The current effects imposed on the working material, as well as the pulses that change over time during the experiment. When the current used is (8, 5, 3, 2, 1.5) A, the pulse time used is (12, 25) μs and the size of the space used is (1) mm. Optimum surface roughness under a current of 1.5 A and the pulse time of 25 μs with a maximum MRR of 8 A and the pulse duration of 25 μs.

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

Procedia CIRP ◽  
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

Modelling and Optimization of Al–SiC MMC through EDM Process Using Copper and Brass Electrodes

2018 ◽  
Vol 5 (5) ◽  
pp. 11295-11303 ◽  
Author(s):  
Debabrata Dhupal ◽  
Subhashree Naik ◽  
Sudhansu Ranjan Das
Keyword(s):  
Edm Process ◽  
Modelling And Optimization

A hybrid intelligent method for modelling the EDM process

2003 ◽  
Vol 43 (10) ◽  
pp. 995-999 ◽  
Author(s):  
Kesheng Wang ◽  
Hirpa L. Gelgele ◽  
Yi Wang ◽  
Qingfeng Yuan ◽  
Minglung Fang
Keyword(s):  
Hybrid Intelligent Method ◽  
Edm Process

Novel die-sinking micro-electro discharge machining process using microelectromechanical systems technology

2006 ◽  
Vol 220 (9) ◽  
pp. 1481-1487 ◽  
Author(s):  
J-B Li ◽  
K Jiang ◽  
G J Davies
Keyword(s):  
Microelectromechanical Systems ◽  
Machining Process ◽  
Metallic Surface ◽  
Manufacturing Cost ◽  
Sem Images ◽  
Deep Reactive Ion Etching ◽  
Electro Discharge Machining ◽  
Mems Technology ◽  
Fabrication Condition ◽  
Edm Process

A novel die-sinking micro-electro discharge machining (EDM) process is presented for volume fabrication of metallic microcomponents. In the process, a high-precision silicon electrode is fabricated using deep reactive ion etching (DRIE) process of microelectromechanical systems (MEMS) technology and then coated with a thin layer of copper to increase the conductivity. The metalized Si electrode is used in the EDM process to manufacture metallic microcomponents by imprinting the electrode onto a flat metallic surface. The two main advantages of this process are that it enables the fabrication of metallic microdevices and reduces manufacturing cost and time. The development of the new EDM process is described. A silicon component was produced using the Surface Technology Systems plasma etcher and the DRIE process. Such components can be manufactured with a precision in nanometres. The minimum feature of the component is 50 μm. In the experiments, the Si component was coated with copper and then used as the electrode on an EDM machine of 1 μm resolution. In the manufacturing process, 130 V and 0.2 A currents were used for a period of 5 min. The SEM images of the resulting device show clear etched areas, and the electric discharge wave chart indicates a good fabrication condition. The experimental results have been analysed and the new micro-EDM process is found to be able to fabricate 25 μm features.

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

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.

scholarly journals Electric Discharge Grinding of Polycrystalline Diamond Materials

2012 ◽  
Vol 271-272 ◽  
pp. 333-337 ◽  
Author(s):  
Song Lin Ding ◽  
John P.T. Mo ◽  
Milan Brandt ◽  
Richard Webb
Keyword(s):  
Electrical Discharge ◽  
Material Removal ◽  
Working Condition ◽  
Removal Rate ◽  
Polycrystalline Diamond ◽  
Optimal Parameters ◽  
Power Generator ◽  
The Poor ◽  
Edm Process ◽  
Selection Of

The poor electric conductivity of polycrystalline diamond (PCD) makes it difficult to machine with the conventional EDM process. Inappropriate selection of parameters of the power generator and the servo system leads to unstable working condition and low material removal rate. This paper introduces a method to find optimal parameters in the Electrical Discharge Grinding (EDG) of PCD materials with Taguchi method. The theory and detailed procedures are presented, experimental results are analyzed. The optimized configuration was validated through confirmation tests.

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