Optimization of machining parameters for EDM operations based on central composite design and desirability approach

被引：0
作者：
Subramanian Gopalakannan
Thiagarajan Senthilvelan
机构：
[1] Adhiparasakthi Engineering College,Department of Mechanical Engineering
[2] Pondicherry Engineering College,Department of Mechanical Engineering
来源：
Journal of Mechanical Science and Technology | 2014年 / 28卷
关键词：
EDM; Metal matrix composite; Response surface method; Central composite design; Desirability; Optimization;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A novel aluminium metal matrix composite reinforced with SiC particles were prepared by liquid metallurgy route. Recent developments in composites are not only focused on the improvement of mechanical properties, but also on machinability for difficult-to-machine shapes. Electrical discharge machining (EDM) was employed to machine MMC with copper electrode. using EDM. Experiments were conducted using pulse current, gap voltage, pulse on time and pulse off time as typical process parameters. The experiment plan adopts face centered central composite design of response surface methodology. Analysis of variance was applied to investigate the influence of process parameters and their interactions viz., pulse current, gap voltage, pulse on time and pulse off time on material removal rate (MRR), electrode wear ratio (EWR) and surface roughness (SR). The objective was to identify the significant process parameters that affect the output characteristics. Further a mathematical model has been formulated by applying response surface method in order to estimate the machining characteristics such as MRR, EWR and SR.
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页码：1045 / 1053
页数：8
相关论文
共 69 条
[11]  
Singh S(2011)Role of powder in the machining of Al-10% SiCp metal matrix composites by powder mixed electric discharge machining J. Comp. Mater. 45 133-151
[12]  
Lauwers B(2012)Modeling and optimization of Al 7075/10wt% Al Adv. Mater. Res. 488-489 856-860
[13]  
Kruth J P(2002)O J. Mater. Process Technol. 123 251-257
[14]  
Liu W(2010) metal matrix composites by response surface method Int. J. Adv. Manuf. Technol. 53 181-180
[15]  
Eeraerts W(2009)Particle distribution in cast metal matrix composites Part -I Int. J. Adv. Manuf. Technol. 45 1131-1145
[16]  
Schact B(2012)Performance analysis of wire electrochemical turning process-RSM approach Procedia Engg. 32 685-690
[17]  
Bleys P(2005)Investigations into the effect of tool shapes with size factor consideration in sink electrical discharge machining (EDM) process J. Mater. Process. Technol. 162–163 637-643
[18]  
Abdullah A(2008)Modeling and Optimization of EDM Process Parameters on Machining of Al 7075 B4C MMC Using RSM Int. J. Adv. Manuf. Technol. 37 523-533
[19]  
Mohammad R(2010)ED machining of WC-Co J. Mech. Sci. Technol. 24 1083-1090
[20]  
Ivanov S A(2007)Modeling and analysis of the effects of machining parameters on the performance characteristics in EDM process of Al J. Mate. Proces. Technol. 169 427-436
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