Optimization of electrical discharge machining AA6061/ 10 %Al2O3 composite using Taguchi optimization technique

2018 ◽  
Vol 5 (9) ◽  
pp. 18946-18955
Author(s):  
Bhaskar Chandra Kandpal ◽  
Jatinder Kumar ◽  
Hari Singh
2013 ◽  
Vol 61 (2) ◽  
Author(s):  
Nor Liyana Safura Hashim ◽  
Azli Yahya ◽  
Mohammed Rafiq Abdul Kadir ◽  
Syahrullail Samion ◽  
Nazriah Mahmud

Metal–on–metal articulation of hip implant suffers from friction due to the moving metal surface. Thus it would shorten the lifespan of the joint. One of the significant current discussions in biomedical field is to reduce the friction between the articulations surface. It was found that lubrication technique is applicable in order to reduce the friction. A surface texture which micro pits formation on the metal surface of hip implant then was found to benefits the lubrication performance. Due to many advantages offered by electrical discharge machining especially in micro machining, it is utilized for machining the micro pits in this research. Thus, this paper is proposing on machining and control method for this purpose in terms of workpiece placement, coordination and orientation related to the electrode of the electrical discharge machining system. In this paper, a design of motor control simulation has been made using DC motor, Proportional–Integral controller and particle swarm optimization in order to get a better performance of micro–machining positioning for this purpose. From the simulation, the result obtained showed that the model could give a better positioning when using particle swarm optimization technique.


Author(s):  
Souvick Chakraborty

The optimization technique is introduced to overcome the problem. Here the author introduces multi-criteria decision-making technique to get the optimization value. Electrical discharge machining (EDM) in nontraditional machining process is applied for machining complicated or intricate geometries on raw materials. The present work attempts to optimize several responses of machining operation using multi-criteria decision making (MCDM) by employing different machining parameters like current, voltage, pulse. The Taguchi L9 orthogonal experimental design is followed during electrical discharge machining of AISI P20 tool steel. Four responses, namely metal removal rate, tool life, surface roughness, and over cut, are considered for optimization. The present work is aimed at multi-response optimization (i.e., higher MRR, higher tool life, lower surface roughness, and minimum overcut), which is conducted using MCDM technique.


2021 ◽  
Vol 106 ◽  
pp. 3-9
Author(s):  
D. Devarasiddappa ◽  
M. Chandrasekaran ◽  
K. Palanikumar

Wire-cut electrical discharge machining (WEDM) has emerged as the most important non-traditional machining technique in the recent years due to its exceptional accuracy and capability to produce net near shape components of electrically conductive materials. Ti-6Al-4V alloy is a hard-to-machine material and popularly used in bio-medical, aerospace, automotive, defence applications etc. due to its distinct merits. In this work, Taguchi optimization technique is applied to obtain optimum cutting conditions for material removal rate (MRR) and power consumption (PC) in WEDM of Ti6Al4V alloy. The result showed 16.38% improvement in MRR and 10.36% reduction in PC at the optimal parameter settings compared to initial cutting conditions. ANOVA result established pulse off time and current as highly significant process parameters affecting MRR (I: 56.58%, Toff: 23.57%) and PC (Toff: 43.26%, I: 31.24%). The response surface variation PC and MRR is studied using 3D plots. Surface morphology of machined component using scanning electron microscope images is also discussed.


Author(s):  
Bruna Michelle de Freitas ◽  
Carlos augusto Henning Laurindo ◽  
Paulo Soares ◽  
Leticia Bemben

2020 ◽  
Vol 40 (10) ◽  
pp. 870-872
Author(s):  
T. R. Ablyaz ◽  
E. S. Shlykov ◽  
K. R. Muratov

2020 ◽  
Vol 13 (3) ◽  
pp. 219-229
Author(s):  
Baocheng Xie ◽  
Jianguo Liu ◽  
Yongqiu Chen

Background: Micro-Electrical Discharge Machining (EDM) milling is widely used in the processing of complex cavities and micro-three-dimensional structures, which is a more effective processing method for micro-precision parts. Thus, more attention has been paid on the micro-EDM milling. Objective : To meet the increasing requirement of machining quality and machining efficiency of micro- EDM milling, the processing devices and processing methods of micro-EDM milling are being improved continuously. Methods: This paper reviews various current representative patents related to the processing devices and processing methods of micro-EDM milling. Results: Through summarizing a large number of patents about processing devices and processing methods of micro-EDM milling, the main problems of current development, such as the strategy of electrode wear compensation and the development trends of processing devices and processing methods of micro-EDM milling are discussed. Conclusion: The optimization of processing devices and processing methods of micro-EDM milling are conducive to solving the problems of processing efficiency and quality. More relevant patents will be invented in the future.


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