Electrochemical micro-drilling of deep holes by rotational cathode tools

Fan, Zhiwen; Hourng, Lih‐Wu

doi:10.1007/s00170-010-2744-x

Cited by 52 publications

(25 citation statements)

References 17 publications

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“…Obróbka elektrochemiczna mikroelementów czy mikrostruktur jest zwykle realizowana w operacjach: drążenia (bez ruchu obrotowego elektrody), wiercenia (z ruchem obrotowym elektrody), frezowania (z ruchem obrotowym elektrody) oraz strugania (bez ruchu obrotowego elektrody) [19][20][21][22][23][24][25][26]. W przypadku mikroobróbki (d << 1 mm) poważny problem stanowią wykonanie i pozycjonowanie elektrody roboczej.…”

Section: Mikroobróbka Elektrochemicznaunclassified

Electrochemical machining – state of the art and direction of development

Ruszaj

2017

Mechanik

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Electrochemical machining process (ECM) can be applied for efficient shaping advanced materials conducting electrical current, which are difficult or impossible for machining using conventional methods. In electrochemical machining, the workpiece is an anode and material is removed as a result of electrochemical reactions “atom by atom” without mechanical forces. This mechanism of material removal make it possible to obtain high quality of machined surface layer with uniform properties. The very important advantage of ECM process is also the fact that there is not a tool wear (working electrode – cathode), because the equivalent reaction to anodic dissolution is hydrogen generation on cathode surface and hydrogen can be easily removed from, the inter-electrode gap by electrolyte flow. Because of this advantages, the ECM process is widely applied in space, aircraft, car and electromechanical industry and research stimulating ECM development are carried out.

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Section: Mikroobróbka Elektrochemicznaunclassified

Electrochemical machining – state of the art and direction of development

Ruszaj

2017

Mechanik

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“…Therefore, the amount of research works in this field have increased significantly. The research are mainly carried out in South Korea [1, 12-15, 34, 41], Singapore and China [10,28,46,[49][50][51][52][53], Poland [23,24,38,43], and the USA [32]. These papers mainly concern issues of machining resolution and practical application of ns-PECM process.…”

Section: The Physical Principle Of (Ns-pecm)mentioning

confidence: 99%

“…On the other hand, increase of electrode area causes that anode polarization to the desired potential value needs more time (which effectively means change of the character of the process to the diffusion limited state). Therefore in majority cases, machining in ns-PECM is carried out in kinematics of milling with application of electrode tool with 10 Examples of ns-PECM milling application: a a prism machined in a stainless steel sheet in two stages: fast rough machining with 143 ns pulses followed by a slow fine stag with 50 ns pulse duration (tool: cylindrical W wire with 30 μm diameter, electrolyte 3M HCl/6M HF) [6]; b micro hemisphere with 60 μm diameter machined by rough and finish cut (45 μm electrode, material: 304 SS, workpiece potential 6 V, 0 ns pulse on-time, 1 μs period) [15] diameter <100 μm. There are also examples of successful application of STM tip as electrode tool [29].…”

Section: Factors Determining the Localization In Ns-pecmmentioning

confidence: 99%

“…The workpiece in ns-PECM can be shaped with different typical for ECM kinematics variants as sinking or hole drilling [1,10,12,14,32,34,49], machining with universal electrode tool [13,15,28,50] or in kinematic analogous to wire cutting [41,46,51,53]. Selected examples of application were presented in Figs.…”

Section: Perspectives An Limitations Of Ns-pecm Industrial Applicationmentioning

confidence: 99%

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Discussion of ultrashort voltage pulses electrochemical micromachining: a review

Skoczypiec

2016

Int J Adv Manuf Technol

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One of the most effective way of electrochemical machining (ECM) accuracy increase is to carry out process with application of voltage pulses. In one of the variants of ECM, ultra short (nono-or picosecond range) voltage pulses are applied. It gives possibility to achieve high localization of electrochemical dissolution process and allows to machine microparts with accuracy less than 0.01 mm. However, because of the process principles, this variant of ECM has number of limitations which stop its wider application in micromanufacturing industry. Based on the literature review, the physical principles of ultrashort voltage pulses electrochemical machining were presented and anodic dissolution localization issues were discussed. Also, differences between other electrochemical machining variants were underlined. It gave possibility to identify limitations and future perspectives of industrial applications.

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“…Microcavities or microholes are manufactured in kinematic of sinking or drilling (for instance -cooling holes in details of aircraft engines [6,18,19]). Microdetails with free form shapes (3D) are usually manufactured in kinematic of milling [11], as it is presented in Fig.…”

Section: Electrochemical Microdetails Manufacturingmentioning

confidence: 99%

Electrochemical Machining – Special Equipment and Applications in Aircraft Industry

Ruszaj¹,

Gawlik²,

Skoczypiec³

2016

Management and Production Engineering Review

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Electrochemical machining is an unique method of shaping in which, for optimal parameters tool has no wear, surface layer properties after machining are similar to the core material and surface quality and accuracy increase together with material removal rate increase. Such advantages of electrochemical machining, besides of some ecological problems, create industry interest in the range of manufacturing elements made of materials with special properties (i.e. turbine blades of flow aircrafts engines). In the paper the nowadays possibilities and recent practical application of electrochemical machining in aircraft have been presented.

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Electrochemical micro-drilling of deep holes by rotational cathode tools

Cited by 52 publications

References 17 publications

Electrochemical machining – state of the art and direction of development

Electrochemical machining – state of the art and direction of development

Discussion of ultrashort voltage pulses electrochemical micromachining: a review

Electrochemical Machining – Special Equipment and Applications in Aircraft Industry

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