Electrochemical machining

Bannard, J. E.

doi:10.1007/bf00615526

Cited by 52 publications

(43 citation statements)

References 96 publications

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“…This process, however, is not an electrochemical process, meaning it is a chemical reaction that will happen regardless of a current being passed and it does not occur at the electrode surface. 2,5,29,30 The total current passed is not affected by this reaction. Figure 3 schematically shows the processes occurring during ECM of an iron workpiece in sodium nitrate.…”

Section: Process Overviewmentioning

confidence: 95%

“…2,4,5,9,10,31,34 The most common electrolyte used for ECM is a concentrated salt electrolyte, namely, sodium chloride or sodium nitrate. These are used as they are relatively inexpensive and they do not cause damage to the machinery.…”

Section: Electrolytesmentioning

confidence: 99%

“…This is not to say that the formation of all passive layers is unwanted. Sometimes the formation of a noninsulating passive layer can improve the resolution of the machining, obtaining a more precise shape with sharper edges and corners 2,5,9,10,48,50 by increasing the resistance of the surrounding workpiece. This is beneficial for micromachining.…”

Section: Formation Of Passivating Layermentioning

confidence: 99%

“…1,3,5 An electrolyte with a higher concentration can carry more current as there are more ions available within the solution. 4,5,23 This means that the machining rate will be higher as the amount of material removed is proportional to the amount of current passed over time. 2,33,56 The current lines extend further into the solution when the concentration is higher as the resistance of the electrolyte is reduced.…”

Section: Reasoning For Selecting An Electrolytementioning

confidence: 99%

“…[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). The applied potential causes a DC current to flow between the electrodes, dissolving the anode material in the process.…”

Section: Introductionmentioning

confidence: 99%

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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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Section: Process Overviewmentioning

confidence: 95%

Section: Electrolytesmentioning

confidence: 99%

Section: Formation Of Passivating Layermentioning

confidence: 99%

Section: Reasoning For Selecting An Electrolytementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Electrochemical micromachining: An introduction

Leese

Ivanov

2016

Advances in Mechanical Engineering

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On a Non-symmetric Problem in Electrochemical Machining

Wegert

Oestreich

1997

Math. Meth. Appl. Sci.

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Electrochemical Machining

Давыдов¹,

Волгин²

2007

Encyclopedia of Electrochemistry

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The sections in this article are Introduction Definition and General Information Advantages and Disadvantages Electrode Processes Anodic Processes Cathodic Processes Metal Removal Rate Accuracy Methods of Lowering the Effects of Void Fraction and Heating on the Distribution of Current Density Over the WP Surface Methods Enhancing the Localization of Metal Dissolution Prediction of Workpiece Shape and Tool‐electrode Design Problem with Moving Boundary The Direct Problem The Inverse Problem Quasi‐steady‐state Approximation Calculation of Transfer Processes in the IEG Direct Problem: Evolution of WP Surface The Inverse Problem: Correction of TE Surface Local, One‐dimensional Approximation Calculation of Transfer Processes in the IEG The Direct Problem: The Evolution of WP Surface The Inverse Problem: The Correction of TE Surface Automated Design of ECM Operations ECM Techniques and Applications Electrochemical Sinking Electrochemical Drilling Electrochemical Deburring Removing of Defective Layers ECM in Biomedical Engineering Subsea Application Electrochemical Micromachining ( ECMM ) Hybrid Processes Surface Layer Integrity after ECM Control of Electrolyte Composition and Environmental Problems Conclusions

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Electrochemical machining

Cited by 52 publications

References 96 publications

Electrochemical micromachining: An introduction

Electrochemical micromachining: An introduction

On a Non-symmetric Problem in Electrochemical Machining

Electrochemical Machining

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