Surface Roughness and Microhardness Evaluation for EDM with Cu-Mn Powder Metallurgy Tool

被引：75

作者：

Gill, Amoljit Singh ^{[1
]}

Kumar, Sanjeev ^{[1
]}

机构：

[1] PEC Univ Technol, Dept Mech Engn, Chandigarh 160012, India

来源：

MATERIALS AND MANUFACTURING PROCESSES | 2016年 / 31卷 / 04期

关键词：

EDM; Electrode; Microhardness; Optimization; Roughness; Taguchi; MACHINING PARAMETERS; TAGUCHI METHOD; DISCHARGE; ELECTRODE; OPTIMIZATION; LAYER; STEEL; FABRICATION; COMPOSITES; MODEL;

D O I：

10.1080/10426914.2015.1070412

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present research, composite electrode (Cu-Mn) manufactured through powder metallurgy has been used to machine hot die steel (H11) by electrical discharge machining (EDM) process with the aim of inducing manganese and carbon into the machined surface. Such alloying is expected to improve the microhardness and other surface characteristics. Best level of process parameters for better surface finish and high microhardness are found using Taguchi method. Six processing parameters are considered and their significance is investigated by analysis of variance. Techniques like energy dispersive spectroscopy, scanning electron microscopy, and X-ray diffraction are used to ascertain the surface characteristics. Surface machined at optimum process conditions for microhardness shows 93.7% improvement due to formation of cementite, ferrite and manganese carbide phases. Surface roughness having Ra value of 3.11 mu m has been achieved.

引用

页码：514 / 521

页数：8

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