Micro-Spark Erosion as a Technique in Microminiaturization

Osenbruggen, C. Van; Luimes, G.; Dijk, Andre van; Siekman, J.G.; Philips, N. V.

doi:10.1016/s1474-6670(17)68988-2

Cited by 10 publications

(11 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Heat that is propagated in the metal as a consequence of thermal conductivity is transmitted through the surface which forms the contact between the discharge channel and the electrode and thus passes into the metal. 11 Since the distance between the electrodes is very small in comparison to the electrode dimensions, the scattering of heat in the dielectric layer between the electrodes can be ignored and the heat source can be considered to be a surface one. The mathematical models for the analysis of EDM process are based on the theory of heat conduction into the solids and use the following differential equation with suitable boundary conditions…”

Section: Thermal Modelling Of Discharge Process In Edmmentioning

confidence: 99%

“…All these parameters depend on the distribution of the energy supplied during the process. [11][12][13] For a particular application and with given technical conditions, Juhr 12 has studied the thermal load using different simulation conditions of different pulse wave forms. In many applications, EDM of cemented carbide is restricted by the basic properties of this family of materials.…”

Section: Subscripts Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Analysis of energy distribution during electric discharge machining of tungsten carbide

Khatter¹,

Pandey

2009

Tribology - Materials, Surfaces & Interfaces

View full text Add to dashboard Cite

During electrical discharge machining (EDM) process, electrical energy is used for the machining of the components. Energy distribution in electrical discharge machining process is the distribution of input energy supplied during machining to various components. In order to improve the technological performance during EDM process, it is essential to understand the distribution of input energy in the entire system. An experimental study on the effect of EDM energy distribution parameter for tungsten carbide is presented. The copper tungsten electrode has been used for the study. Experiments have been performed in specially designed dielectric insulated tank. To minimise the energy wastage, workpiece as well as the electrode was covered with Teflon. Current and pulse duration have been selected as variable parameters. The objective of this study is to analyse the amount of electrical energy used for machining effectively. The detail of this study has been presented in this paper.

show abstract

Section: Thermal Modelling Of Discharge Process In Edmmentioning

confidence: 99%

Section: Subscripts Introductionmentioning

confidence: 99%

Analysis of energy distribution during electric discharge machining of tungsten carbide

Khatter¹,

Pandey

2009

Tribology - Materials, Surfaces & Interfaces

View full text Add to dashboard Cite

show abstract

“…The potentiality of maintaining tolerance limit in creation of micro hole and micro tooth has been demonstrated by utilisation of pulsed voltage, insulated tool, several tool shapes, role of interelectrode gap etc [15,16]. However the challenges to create a precise micro holes are strictly required.…”

Section: Introductionmentioning

confidence: 99%

Multi-response optimization of electrochemical micromachining on masked SS304

Deepak

Hariharan

2020

Eng. Res. Express

View full text Add to dashboard Cite

This paper investigates on electrochemical micromachining of woven fabric masked stainless steel SS304 using 0.5 mm copper tool electrode with sodium nitrate (NaNO 3 ) Electrolyte. Investigation is carried out to express the performance measures of micro hole such as metal removal rate (MRR), taper angle (TA) and surface roughness (SR). The experimental plan is based on taguchi L16 orthogonal array. Various input process parameters such as voltage, duty ratio, rotational speed, feed rate of tool and electrolyte concentration are varied at four levels. Significant contributions by input process parameters for each output responses such as metal removal rate, taper angle and surface roughness are analysed using contour plots. It is evident that significant contribution to metal removal rate mainly depends on rotational Speed and feed rate of tool. Similarly, duty ratio and feed rate of tool are the significant contributors for both taper angle and surface roughness. Multi response optimization are done for the three output responses using VIseKriterijumska Optimizacija I Kompromisno Resenje (VIKOR) and Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) method to identify the significant process parameter. Performance score of VIKOR and TOPSIS proved that rotational speed of tool, feed rate and duty ratio are important parameters contributing significantly for precision of microfeatures. Both the multi response optimisation methods mutually concluded the best performance is achieved at voltage 21 V, duty ratio 80%, rotational speed of tool 600 rpm, feed rate of tool 0.8 μm s −1 and electrolyte concentration 0.2 M. The confirmation test showed an improvement of performance grade by approximately 0.245.

show abstract

“…This paper will not address the physical background of the spark erosion process. Generally, it can be stated that EDM is a process whereby material is removed through the erosive action of electrical discharges (sparks) provided by a generator [1,2]. The discharges result from an electrical voltage that is applied between two electrodes: the tool electrode (a tungsten wire) and the workpiece electrode (the silicon wafer).…”

Section: Introductionmentioning

confidence: 99%

Production of seismic mass suspensions in silicon by electro-discharge machining

Reynaerts

Meeusen

Brussel

et al. 1999

J. Micromech. Microeng.

View full text Add to dashboard Cite

Currently, nearly all microcomponents are fabricated by technologies such as etching, deposition, or other photolithographic techniques. In this way, the main emphasis has been in trying to fabricate micromechanic devices from a two-dimensional image. The major challenge for the future will be the development of real three-dimensional microstructures. Electro-discharge machining is a so-called non-conventional machining technique, whereby material is removed through the erosive action of sparks. As shown in this paper, electro-discharge machining proves to be a versatile technique that is very well suited for machining complex microstructures.

show abstract

Micro-Spark Erosion as a Technique in Microminiaturization

Cited by 10 publications

References 0 publications

Analysis of energy distribution during electric discharge machining of tungsten carbide

Analysis of energy distribution during electric discharge machining of tungsten carbide

Multi-response optimization of electrochemical micromachining on masked SS304

Production of seismic mass suspensions in silicon by electro-discharge machining

Contact Info

Product

Resources

About