Modelling and optimisation of electro-discharge diamond face grinding of cemented carbide-cobalt composite

被引：11

作者：

机构：

[1] Department of Mechanical Engineering, Babu Banarasi das National Institute of Technology, Lucknow, Uttar Pradesh

[2] Department of Mechanical Engineering, Motilal Nehru National Institute of Technology, Allahabad 211 004, Uttar Pradesh

[3] Babu Banarasi das National Institute of Technology, Lucknow, Uttar Pradesh

来源：

Yadava, V. (vinody@mnnit.ac.in) | 2012年 / Inderscience Enterprises Ltd.卷 / 12期

关键词：

ASR; Average surface roughness; Diamond grinding; EDM; Electro-discharge machining; Hybrid machining; Hybrid methodology; Material removal rate; Modelling; MRR; Optimisation; Response surface methodology; RSM; Taguchi methodology; TM; Wheel wear rate; WWR;

D O I：

10.1504/IJISE.2012.048858

中图分类号：

学科分类号：

摘要：

Electro-discharge diamond grinding is a hybrid process of electrodischarge machining (EDM) and diamond grinding which is obtained by replacing the tool electrode of conventional EDM by a metal bonded diamond wheel. When face of the wheel is used for machining then the process is termed as electro-discharge diamond face grinding (EDDFG). In this study, modeling and optimisation of EDDFG of cemented carbide-cobalt composite has been done using a hybrid methodology comprising of Taguchi methodology (TM) and response surface methodology (RSM) with material removal rate (MRR), wheel wear rate (WWR) and average surface roughness (ASR) as the objective functions. The approach first uses the TM for finding the optimum level of input machining parameters such as wheel speed, current, pulse on-time and duty factor. The optimum input parameter values are further used as the central values in the RSM to develop second-order response model for MRR, WWR and ASR after conducting experiments using central composite rotatable design matrix. The simultaneous optimisation of weighted response has been obtained using MINITAB software. The results show considerable improvement in three quality characteristics when the hybrid approach is used, as compared with the results of only a TM approach. Copyright © 2012 Inderscience Enterprises Ltd.

引用

页码：141 / 164

页数：23

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