Influence of workpiece hardness on EDM performance

被引：30

作者：

Marafona, Jose Duarte ^{[1
]}

Araujo, Arlindo ^{[1
]}

机构：

[1] Univ Porto, Fac Engn, Dept Engn Mecan & Gestao Ind, P-4200465 Oporto, Portugal

来源：

INTERNATIONAL JOURNAL OF MACHINE TOOLS & MANUFACTURE | 2009年 / 49卷 / 09期

关键词：

Electrical discharge machining (EDM); Alloy steel hardness; Material removal rate (MRR); Workpiece surface roughness; Taguchi methodology; Linear regression model; DISCHARGE MACHINING PROCESS; THEORETICAL-MODELS; EROSION MODEL; TOOL STEELS;

D O I：

10.1016/j.ijmachtools.2009.03.002

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The aim of this research is to show the influence of the hardness of the alloy steel on the material removal rate and on the workpiece surface roughness. The Taguchi methodology was used to study that influence. The result of the verification test for workpiece surface roughness was a strong confirmation. This type of outcome allows the use of the additive model to predict the workpiece surface roughness with an average error of 0.4%. The result of the verification test for material removal rate was a poor confirmation due to an interaction of parameters. This type of outcome does not allow the additive model to predict the material removal rate with accuracy. Therefore, a linear regression model was developed for material removal rate using workpiece hardness and its interactions, among other variables. This model predicts the material removal rate with an average error of 1.06%. These results show that workpiece hardness and its interactions have influence on the material removal rate and on the workpiece surface roughness. (C) 2009 Elsevier Ltd. All rights reserved

引用

页码：744 / 748

页数：5

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