A study of micro-EDM and micro-ECM combined milling for 3D metallic micro-structures

Zeng, Zhaoqi; Wang, Yukui; Wang, Zhenlong; Shan, Debin; He, Xiaolong

doi:10.1016/j.precisioneng.2012.01.005

Cited by 103 publications

(40 citation statements)

References 11 publications

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“…First, there are two main types of electrolyte; passivating and non-passivating electrolytes. 9,10,24,33,47,48 Passivating electrolytes will encourage the development of a passive layer on the workpiece. A passive layer is usually formed of metal oxides and hydroxides which can spontaneously form upon contact with the electrolyte or once a current is flowing through the system.…”

Section: Formation Of Passivating Layermentioning

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%

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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: Formation Of Passivating Layermentioning

confidence: 99%

Section: Formation Of Passivating Layermentioning

confidence: 99%

Electrochemical micromachining: An introduction

Leese

Ivanov

2016

Advances in Mechanical Engineering

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“…remove material by an electrochemical reaction at the anode workpiece in an electrolytic cell with an appropriate combination of machining parameters [5]. Compared with other methods, ECM is a promising machining technique, offering advantages such as high machining efficiency, independence of material hardness and toughness, the absence of a heat-affected layer, a lack of residual stresses, cracks, tool wear, and burrs, and low production cost [6][7][8][9]. Hackert-Oschätzchen et al [10] prepared microstructures in carbide metal alloys by jet ECM.…”

Section: Introductionmentioning

confidence: 99%

Removal of islands from micro-dimple arrays prepared by through-mask electrochemical micromachining

Chen

et al. 2015

Precision Engineering

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“…Using servo scanning 3D micro-EDM (3D SSMEDM), Tong et al (2008) machined complex 3D microstructures with cylindrical tungsten microelectrodes of 100 m in diameter. Using an anti-copying block, Zeng et al (2012) fabricated a microelectrode with a diameter of 100 m online and then conducted layer-by-layer scanning micro-EDM combined with micro-electrochemical machining (ECM) to obtain 3D microstructures.…”

Section: Introductionmentioning

confidence: 99%