Finite element modelling for electrical discharge machining of Ti-6Al-4V alloy and multi-objective optimisation using response surface modelling

被引：3

作者：

Jaurker D. ^{[1
]}

Pradhan M.K. ^{[2
]}

机构：

[1] Department of Mechanical Engineering, Maulana Azad National Institute of Technology, Bhopal

[2] Department of Mechanical Engineering, National Institute of Technology, Raipur

来源：

International Journal of Simulation and Process Modelling | 2023年 / 20卷 / 01期

关键词：

EDM; electrical discharge machining; finite element method; response surface methodology; simulation modelling;

D O I：

10.1504/IJSPM.2023.134523

中图分类号：

学科分类号：

摘要：

Electrical discharge machining (EDM) is a non-traditional precision machining method that thermally erodes hard materials and complicated geometries with excellent accuracy, but it also creates residual stress and fractures. Finite element modelling (FEM) was performed for an axially symmetric two-dimensional model of the EDM method, taking into account plausible factors such as Gaussian heat flux distribution, thermally sensitive material properties, the proportion of heat distribution to the workpiece, plasma flushing efficiency (PFE), and so on, to assess the consequence of process variables on the temperature field during the heating stage, and then material removal rate (MRR) and residual stresses. Utilising the response surface modelling (RSM) approach, multi-objective optimisation was performed to maximise the MRR and minimise tensile residual stresses, and an optimum solution was found by assigning equal weightage to all objective functions. © 2023 Inderscience Enterprises Ltd.

引用

页码：21 / 30

页数：9

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