Patent
Method of finishing a workpiece of a non-conducting material, particularly diamond, by means of spark erosion
TLDR
Spark erosion is applied to a nonconducting workpiece while employing a dielectric liquid comprising an emulsion of an aqueous solution of an electrolyte in an organic liquid and a surfactant.Abstract:
Spark erosion is applied to a non-conducting workpiece while employing a dielectric liquid comprising an emulsion of an aqueous solution of an electrolyte in an organic liquid and a surfactant.read more
Citations
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Journal ArticleDOI
Advancing EDM through fundamental insight into the process
TL;DR: In this paper, the authors show the prospects of electrical discharge machining (EDM) technology by interrelating recent achievements in fundamental studies on EDM with newly developed advanced application technologies.
Patent
Process and device for treatment of metal-bonded nonconductive materials
TL;DR: A rotating electrode tool made of polycrystalline synthetic diamonds in a metal foundation is used in the electro-erosive machining and mechanical grinding of a metal bonded, electrically nonconductive hard material such as synthetic diamonds or boron nitrides in an electrically conductive metal matrix.
Patent
Transparent electrical discharge machining fluid
Imai Kouji,Suzuki Isoo +1 more
TL;DR: In this paper, a transparent electrical discharge machining fluid is described, which is provided by mixing 95-60% by weight of a mineral oil and/or a synthetic oil, 5-40% of water and surface active agent in an amount of 5 −40% by the weight of said oil and water.
Patent
High hydrohead fibrous porous web with improved retentive absorption and acquision rate
TL;DR: In this article, a method of treating a high hydrohead fibrous porous web to increase its retentive acquision rate and retentively absorbency, as compared to untreated web, is disclosed.
Patent
Cutting of materials by spark erosion
TL;DR: In this article, a method of cutting a material, which may be insulating or conducting, which includes the steps of placing a pair of parallel spaced electrodes, preferably taking the form of a pairof wires, close to or in contact with the material, applying a voltage across the electrodes and causing relative movement between the electrodes, as the spark erodes the material to effect the cut.
References
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Patent
Electrical discharge machining process and dielectric fluid useful therein
Demay George B,Stayner Robert A +1 more
TL;DR: An electrical discharge machining process using as a dielectric fluid a composition comprising a base oil and a minor amount of a conductivity additive containing a chromium salt of an alkyl salicylic acid and an alkaline earth metal salt of a dialkyl sulfosuccinate as discussed by the authors.
Patent
Spark erosion of materials
TL;DR: In this paper, a method for spark erosion of certain insulators and semiconductors such as Al2O3 and SiC involving forming a metal layer on the surface of the material to be eroded, positioning a movable electrode above the surface, initiating electrical sparking across the gap between the electrode and the metal layer, and then advancing the electrode toward the surface so as to maintain sparking.
Patent
Stable dielectric fluid for electrical discharge machining comprising a mineral oil, a metal sulfonate and a phenolic antioxidant
TL;DR: In this paper, a method for shaping an electrically conductive material by means of electrical discharge machining employing as a dielectric fluid a primarily aliphatic light oil of low viscosity having in minor amounts an oil-soluble metal sulfonate detergent and a phenolic antioxidant.