Advancement in electrochemical micro-machining

Bhattacharyya, B.; Munda, J.; Malapati, M.

doi:10.1016/j.ijmachtools.2004.06.006

Cited by 224 publications

(113 citation statements)

References 50 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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“…One of these reactions is dissolution of anode (workpiece) material. One can state the following advantages of this process [3,8,15]: no electrodetool wear, high productivity (significantly higher than in electrodischarge micromachining), and good surface quality (machining allowance is removed atom by atom via the electrochemical dissolution process in a temperature lower than 373 K, which introduces no significant changes in the surface layer of the machined material). Additionally, machining productivity does not depend on the material mechanical properties.…”

Section: Characteristic Of Electrochemical Micromachiningmentioning

confidence: 99%

“…From the items listed above, the most effective is the application of a pulse voltage [3,7,8]. Taking into account the pulse time t i duration pulse electrochemical machining (PECM) can be divided into three cases: -With pulse time t i > 1 ms, -With pulse time in the range of t i < 1 ms, (usually t i in range 1-100 μs), -With pulse time t i < 500 ns.…”

Section: Characteristic Of Electrochemical Micromachiningmentioning

confidence: 99%

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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“…[1][2][3][4][5][6][7] In ECM, both the tool electrode and the workpiece are submerged in an electrically conductive electrolyte, usually an aqueous salt solution such as sodium chloride (NaCl) or sodium nitrate (NaNO 3 ). 4,5,[8][9][10] A constant potential is applied between the two electrodes ensuring the workpiece becomes the anode (positive electrode).…”

Section: Introductionmentioning

confidence: 99%

“…PECM uses high-frequency voltage pulses to confine the machining to the areas of the workpiece polarised by the tool electrode. 3,4,[16][17][18][19][20] Using a pulsed voltage to machine the workpiece allows the inter-electrode gap (IEG) to be reduced, with the IEG being proportional to the pulse width. 16,17,21,22 The article will present a review of the electrochemical processes and will discuss their suitability for the use in micro manufacturing.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical micromachining: An introduction

Leese

Ivanov

2016

Advances in Mechanical Engineering

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Electrochemical machining is a relatively new technique, only being introduced as a commercial technique within the last 70 years. A lot of research was conducted in the 1960s and 1970s, but research on electrical discharge machining around the same time slowed electrochemical machining research. The main influence for the development of electrochemical machining came from the aerospace industry where very hard alloys were required to be machined without leaving a defective layer in order to produce a component which would behave reliably. Electrochemical machining was primarily used for the production of gas turbine blades or to machine materials into complex shapes that would be difficult to machine using conventional machining methods. Tool wear is high and the metal removal rate is slow when machining hard materials with conventional machining methods such as milling. This increases the cost of the machining process overall and this method creates a defective layer on the machined surface. Whereas with electrochemical machining there is virtually no tool wear even when machining hard materials and it does not leave a defective layer on the machined surface. This article reviews the application of electrochemical machining with regards to micro manufacturing and the present state of the art micro electrochemical machining considering different machined materials, electrolytes and conditions used.

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Advancement in electrochemical micro-machining

Cited by 224 publications

References 50 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 micromachining: An introduction

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