Modeling and analysis of the effects of machining parameters on the performance characteristics in the EDM process of Al2O3+TiC mixed ceramic

Chiang, Ko-Ta

doi:10.1007/s00170-007-1002-3

Cited by 140 publications

(50 citation statements)

References 11 publications

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“…It is experimentally identified that with the increase in discharge energy either by increasing voltage or capacitance, R a increased in die sinking EDM, wire EDM (WEDM) and WEDG (Uhlmann et al, 2005;Han et al, 2006;Chiang, 2007). A large discharging energy usually causes violent sparks and results a deeper erosion crater on the surface.…”

Section: Surface Roughnessmentioning

confidence: 99%

Micro Eletro Discharge Milling for Microfabrication

Ali¹,

Mehfuz²,

Khan³

et al. 2012

Micromachining Techniques for Fabrication of Micro and Nano Structures

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Section: Surface Roughnessmentioning

confidence: 99%

Micro Eletro Discharge Milling for Microfabrication

Ali¹,

Mehfuz²,

Khan³

et al. 2012

Micromachining Techniques for Fabrication of Micro and Nano Structures

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“…From this study, it can be seen that an integrated approach is presented to obtain minimum shrinkage corresponding to the best process conditions. As different from the literature above, some researchers only focused on the machining processes which are the Electric Discharge Machining (EDM) ( Ref 16,17). In summary, even though these researchers work the different fields, they have employed the similar methods as well as the plastic injection molding.…”

Section: Introductionmentioning

confidence: 96%

Modeling and Analysis of Process Parameters for Evaluating Shrinkage Problems During Plastic Injection Molding of a DVD-ROM Cover

Öktem

2011

J. of Materi Eng and Perform

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Plastic injection molding plays a key role in the production of high-quality plastic parts. Shrinkage is one of the most significant problems of a plastic part in terms of quality in the plastic injection molding. This article focuses on the study of the modeling and analysis of the effects of process parameters on the shrinkage by evaluating the quality of the plastic part of a DVD-ROM cover made with Acrylonitrile Butadiene Styrene (ABS) polymer material. An effective regression model was developed to determine the mathematical relationship between the process parameters (mold temperature, melt temperature, injection pressure, injection time, and cooling time) and the volumetric shrinkage by utilizing the analysis data. Finite element (FE) analyses designed by Taguchi (L 27 ) orthogonal arrays were run in the Moldflow simulation program. Analysis of variance (ANOVA) was then performed to check the adequacy of the regression model and to determine the effect of the process parameters on the shrinkage. Experiments were conducted to control the accuracy of the regression model with the FE analyses obtained from Moldflow. The results show that the regression model agrees very well with the FE analyses and the experiments. From this, it can be concluded that this study succeeded in modeling the shrinkage problem in our application.

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“…This modified process and its performance is found to be different from cutting conductive materials. Several researches were carried out to investigate the EDM process parameters for the machining of nonconductive ceramic [9][10][11][12]. It is shown that the maximum MRR and minimum Ra can be produced with the combined effect of low pulse time and high peak current, rotational speed, and flushing pressure.…”

Section: Introductionmentioning

confidence: 99%

Electro-discharge machining of alumina: Investigation of material removal rate and surface roughness

Ali¹,

Moudood²,

Maleque³

et al. 2017

J. MECH. ENG. SCI.

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Alumina is a non-conductive ceramic material which can meet the high demand of industrial applications due to its excellent physical and chemical properties. However, machining of alumina is not possible by using the conventional machining methods due to its inherent brittleness. Recently, electro-discharge machining has been used for structuring alumina with assisting electrode to initiate the spark between the conductive tool electrode and the non-conductive work piece material. However, the effects of process parameters on material removal rate and surface roughness have not been investigated to formulate mathematical models. This study dealt with developing models for material removal rate and surface roughness correlating three process parameters which are peak current, pulse-on time and gap voltage using response surface methodology. The models were verified with 7% error between the results of empirical models and the experimental values.

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Modeling and analysis of the effects of machining parameters on the performance characteristics in the EDM process of Al2O3+TiC mixed ceramic

Cited by 140 publications

References 11 publications

Micro Eletro Discharge Milling for Microfabrication

Micro Eletro Discharge Milling for Microfabrication

Modeling and Analysis of Process Parameters for Evaluating Shrinkage Problems During Plastic Injection Molding of a DVD-ROM Cover

Electro-discharge machining of alumina: Investigation of material removal rate and surface roughness

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