Experimental study on drilling micro-hole through micro-EDM and optimization of multiple performance characteristics

2020 ◽  
Vol 42 (10) ◽  
Author(s):  
Amit Kumar Singh ◽  
Promod Kumar Patowari ◽  
M. Chandrasekaran
Keyword(s):  
Experimental Study ◽  
Performance Characteristics ◽  
Micro Edm ◽  
Micro Hole

Experimental Study of Microelectrode Array and Micro-Hole Array Fabricated by Ultrasonic Enhanced Micro-EDM

2007 ◽  
Vol 364-366 ◽  
pp. 482-487 ◽  
Author(s):  
Wei Liang Zeng ◽  
Yan Ping Gong ◽  
Ying Liu ◽  
Zhen Long Wang
Keyword(s):  
Experimental Study ◽  
Ultrasonic Vibration ◽  
Microelectrode Array ◽  
Machining Process ◽  
High Price ◽  
Hole Array ◽  
Micro Edm ◽  
Mean Square ◽  
Mean Square Deviation ◽  
Micro Hole

Micro electrical discharge machining (EDM), enhanced with ultrasonic vibration, is explored and assessed as a method for developing microelectrode array, for microelectrode array fabricated by LIGA has shortcomings such as complex technology and high price. Based on the mechanism of micro-EDM, micro-hole array discharges to fabricate microelectrode array by reverse copying. In the process of reverse copying, the thicker rod electrode can not rotate, resulting in electric arc and short-circuit occurring easily, so it is necessary to add ultrasonic vibration on the plane plate electrode, in order to exclude debris as soon as possible and stabilize machining process. In the process of machining, four parameters, such as working voltage, working capacity, ultrasonic amplitude and holes spacing, are important to machining efficiency, each parameter has four typical values. In order to reduce experiment times, a scheme of orthogonal experiment was designed with different parameters combination. With result of experiments, the ratio of mean square deviation to error mean square deviation of each parameter was calculated and significance of each parameter was obtained, and the best parameters combination was asserted through theoretical calculation. Also, experimental study of using microelectrode array to machine micro-hole array by Micro- EDM was made and influence curve of each parameter was drawn. Finally, 5×5 arrays of microelectrode were obtained, the diameter of single electrode is less than about 30.m and heightto- width aspect ratios is more than 8, moreover, these microelectrode arrays have good coaxiality and surface quality.

scholarly journals Experimental Study on Performance Characteristics of VCR Diesel Engine using Ziziphus jujuba Oil

2018 ◽  
Vol V6 (02) ◽  
Author(s):  
Velparamesh. C. S ◽  
Sachinn Wilson ◽  
Akash. B ◽  
Dhinakar. G ◽  
Thayanithi. M ◽  
...  
Keyword(s):  
Experimental Study ◽  
Diesel Engine ◽  
Performance Characteristics ◽  
Ziziphus Jujuba

MCDM-Based Optimization of Performance Characteristics During µEDMing of SS 304

2021 ◽  
pp. 18-32
Author(s):  
Premangshu Mukhopadhyay ◽  
Goutam Kumar Bose ◽  
Pritam Pain
Keyword(s):  
Stainless Steel ◽  
Work Performance ◽  
Research Work ◽  
Performance Characteristics ◽  
Micro Edm ◽  
Grey Relational Grade ◽  
Research Findings ◽  
Micro Features ◽  
Grey Relational ◽  
Edm Process

Micro-EDM is most widely used for developing perfect drilled micro features/parts. Research was carried out to improve the material removal and tool wear of any conductive machined product by EDM and micro-EDM process. In this chapter, RSM was used for designing the experiments with 20 set of experiments. In this present research work, performance characteristics like MRR and Overcut have got a different level of importance. Here the stress was given on MRR rather than on OC. In this MCDM analysis, the weight of MRR is considered to be maximum (i.e., larger is better), and other weights of other responses are considered to be the minimum (i.e., smaller is better). Finally, in the midst of all the combinations of process parameters considered one that acquires the highest grey relational grade is the best parametric combination. The research findings in the area of machining of stainless steel 304 will be helpful to manufacturing engineers for selecting the optimized parametric combinations of micro-EDM process with stainless steel.

Typical Metrology of Micro-Hole Arrays Made in Stainless Steel Foils by Two-Stage Micro-EDM

CIRP Annals ◽  
1999 ◽  
Vol 48 (1) ◽  
pp. 127-130 ◽  
Author(s):  
D.M. Allen ◽  
H.J.A. Almond ◽  
J.S. Bhogal ◽  
A.E. Green ◽  
P.M. Logan ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Micro Edm ◽  
Two Stage ◽  
Micro Hole ◽  
Hole Arrays ◽  
Stainless Steel Foils ◽  
Steel Foils ◽  
Made In

Key Technology of Microelectrode Array Fabrication by Ultrasonic Enhanced Micro-EDM

2007 ◽  
Author(s):  
Guanxin Chi ◽  
Weiliang Zeng ◽  
Desheng Dong ◽  
Zhenlong Wang
Keyword(s):  
Surface Quality ◽  
Ultrasonic Vibration ◽  
Microelectrode Array ◽  
Electrical Discharge Machining ◽  
Short Circuit ◽  
High Price ◽  
Hole Array ◽  
Micro Edm ◽  
Plane Plate ◽  
Micro Hole

Micro electrical discharge machining (EDM), enhanced with ultrasonic vibration, is explored and assessed as a new technology for developing microelectrode array, for microelectrode array fabricated by LIGA has shortcomings such as complex technology and high price. Based on the mechanism of micro-EDM, micro-hole array discharges to fabricate microelectrode array by reverse copying. In the process of reverse copying, the thicker rod electrode can’t rotate, resulting in electric arc and short-circuit easily, so it is necessary to add ultrasonic vibration on the plane plate electrode. According to the technology, a set of micro-EDM system is designed and developed. On the machining system, influence of ultrasonic vibration is analysed from the way of vibration mechanics through theoretical analysis and experimental observation. Compared with machining without ultrasonic vibration, single discharging energy decreases 1/2, discharge frequency improves three times, machining efficiency increases two times and better surface quality is achieved. Finally, 5×5 arrays of microelectrode and microhole made by these microelectrode arrays are got, the diameter of single electrode is less than 30μm and height-to-width aspect ratio is more than 8, moreover these arrays of microelectrode and micro-hole have very good surface quality.

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