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Effect of Process Parameters on the Breathing Zone Concentration of Gaseous Hydrocarbons—A Study of an Electrical Discharge Machining Process

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Abstract:

The purpose here was to study the effect of process parameters on breathing zone concentrations of gaseous hydrocarbons generated from an Electrical Discharge Machining process. Peak current, pulse duration, dielectric level above the spark location, and flushing pressure were the process parameters considered. Gas chromatography coupled with mass spectrometry (GC/MS) was used to analyze the hydrocarbon components of gaseous emission. Peak current and pulse duration appeared the most significant. A significant fraction of emission was of reaction products of dielectric fluid that included high molecular weight hydrocarbons, branched chain hydrocarbons and other reaction products. Possible measures to control and minimize risk of exposure were outlined as well.

Keywords: Electrical Discharge Machining (EDM); GC/MS; Taguchi methodology; hydrocarbons; occupational exposure

Document Type: Research Article

DOI: http://dx.doi.org/10.1080/10807039.2011.618390

Affiliations: 1: Department of Mechanical Engineering,National Institute of Technology, Tiruchirappalli, India 2: Cell for Industrial Safety and Risk Analysis,Central Leather Research Institute, Adyar,Chennai, India

Publication date: November 1, 2011

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