Experimental investigation into the micro-EDM characteristics of conductive SiC

Saxena, Krishna Kumar; Srivastava, Anand Suman; Agarwal, Sanjay

doi:10.1016/j.ceramint.2015.09.111

Cited by 31 publications

(3 citation statements)

References 28 publications

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“…Machining operation with higher voltage usually leads to an increase in MRR and tool wear rate (TWR) [83][84][85]91]. However, machining on conductive SiC using electrolytic copper electrode shows reduction in MRR and TWR with increasing voltage [92]. The authors attribute this to the expansion of plasma channel with increasing volt age, which reduces available energy per unit area.…”

Section: Electrical Parametersmentioning

confidence: 99%

Microfeatures and microfabrication: current role of micro-electric discharge machining

Singh

Mali

2019

J. Micromech. Microeng.

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The field of microfeatures and microdevices is an emergent field, with applications extending from cooling of turbine blades to drug delivery in the human body. Fabrication of these features, microfabrication, is a challenge as it requires precise control over material removal in the micro domain. There are several techniques available for microfabrication, of which microelectric discharge machining (μ-EDM) has emerged as a leading technique for its versatility on different materials and ability to fabricate intricate parts and features. This paper presents compiled information on microfeatures, their applications, and different microfabrication techniques with emphasis on the current status and role of µ-EDM in microfabrication.

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Section: Electrical Parametersmentioning

confidence: 99%

Microfeatures and microfabrication: current role of micro-electric discharge machining

Singh

Mali

2019

J. Micromech. Microeng.

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“…They recommended the medium level of spindle speed and feed rate for gaining the maximium MRR. Saxena et al [29] reported that the threshold has a major influence on response indicators while machining of SiC material. They recommend the higher values of voltage and threshold for achieving the maximium MRR in micro EDM.…”

Section: Introductionmentioning

confidence: 99%

“…Generally, increase in threshold value increases the discharge per second that leads to more heat transfer to work material in shorter time duration causing more erosion material. When threshold increases the capacitor discharges a greater number of electrical sparks in short interval of time leads to a reduction in rate of deposition of debris particles in work material thereby MRR is increased[29].…”

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confidence: 99%

Experimental study on surface characteristics in μED milling of Al6063%-5%B4C-5%ZrSiO₄ composite using TOPSIS method

Narasimmalu¹,

Ramabalan²

2022

Surf. Topogr.: Metrol. Prop.

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Al6063 composites are widely used in automobile, aerospace and biomedical industries due to their excellent mechanical properties. Machining of micro channels in composites is difficult for conventional machining process due to presence of hard reinforcement. Materials with base metal. Micro Electrical discharge (µED) milling is popular micromachining technique for machining simple, intricate shapes and microchannels on any conductive material. However, it a slow machining process, the identification of optimum condition has become wide research area in µEDM. The present work aims to study the influence of process variables namely voltage, spindle speed and threshold on machining characteristics of µED milling of Hybrid Metal Matrix Composites (HMMCs). Experimental trials are carried out with copper electrode at different parametric condition. Al6063-5%B4C-5%ZrSiO4 composite was fabricated using stir casting method and experimental runs were designed using general full factorial method. The significant parameters are identified using Analysis of Variance (ANOVA) and the ideal machining conditions for multi-response are determined using Technique for Order of Preference by Similarity to Ideal Solution (TOPSIS) method. The morphology of machined surface with best and worst conditions is examined using SEM. Results indicated that the voltage and threshold are the influencing parameters for considered response indicators. Recast layer thickness seems to be low with best machining conditions as compared to worst conditions. Increase in voltage and threshold increases the Material Removal Rate (MRR) and decreases the Electrode Wear Rate (EWR). Surface finish is better when the lower order of capacitance and voltage is used. MRR is increased by 48% with best machining conditions compared to worst machining condition.

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Optimization Techniques for Response Predication in Metal Cutting Operation: A Review

Sharma

Jha

Pahuja

2021

Lecture Notes on Multidisciplinary Industrial Engineering

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Experimental investigation into the micro-EDM characteristics of conductive SiC

Cited by 31 publications

References 28 publications

Microfeatures and microfabrication: current role of micro-electric discharge machining

Microfeatures and microfabrication: current role of micro-electric discharge machining

Experimental study on surface characteristics in μED milling of Al6063%-5%B4C-5%ZrSiO₄ composite using TOPSIS method

Optimization Techniques for Response Predication in Metal Cutting Operation: A Review

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Experimental investigation into the micro-EDM characteristics of conductive SiC

Cited by 31 publications

References 28 publications

Microfeatures and microfabrication: current role of micro-electric discharge machining

Microfeatures and microfabrication: current role of micro-electric discharge machining

Experimental study on surface characteristics in μED milling of Al6063%-5%B4C-5%ZrSiO4 composite using TOPSIS method

Optimization Techniques for Response Predication in Metal Cutting Operation: A Review

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Experimental study on surface characteristics in μED milling of Al6063%-5%B4C-5%ZrSiO₄ composite using TOPSIS method