Analysis of the Effect of Ultrasonic Vibrations on the Performance of Microelectrical Discharge Machining of A2 Tool Steel on the Diesel Engine Performance

Puthumana, Govindan

doi:10.14810/ijmech.2016.5301

Cited by 3 publications

(1 citation statement)

References 15 publications

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“…Moreover, vibrations with an ultrasonic frequency of 5 kHz have resulted in an MRR that is six times higher compared with l-EDM assigned to workpieces in the case of scanning 3D l-EDM [12]. In EDM with a vibration frequency F = 40 kHz, the MRR and TWR were increased by 47% and 18%, respectively [13].…”

Section: Introductionmentioning

confidence: 97%

Multi-objective optimization of process parameter in EDM using low-frequency vibration of workpiece assigned for SKD61

et al. 2019

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Integrated vibration in electrical discharge machining (EDM) plays a key role in achieving high efficiency. High levels of variables can be employed in this approach due to integration. However, simultaneous optimization of the EDM parameters to achieve multi-objectives is still very complex and challenging. Studies on integrated vibration are still in a preliminary stage. This report addresses multi-objective optimization in EDM for SKD61 die steel using low-frequency vibration. MOORA (Multi-objective optimization based on ratio analysis) was chosen to resolve this multi-objective optimization problem. The material removal rate (MRR), tool wear rate (TWR) and surface roughness (SR) were selected as performance measures in the EDM process. An analytical hierarchical process (AHP) was used to determine the weight value of the quality indicators. The results indicate that low-frequency vibrations significantly improve machining efficiency. When the frequency of the vibrations increased, MRR increased significantly such that MRR MAX = 64.48%. TWR and SR are smaller and their increase are given as TWR MAX = 20.3% and SR MAX = 18.47%. MOORA has been identified as a suitable alternative to multi-objective optimization in an EDM process using low-frequency vibrations for an assigned workpiece. The optimum parameters required to achieve the multi-objective were Ton = 25 ls, I = 8 A, Tof = 5.5 ls and F = 512 Hz, at the resultant quality criteria of MRR = 9.564 mm 3 /min, TWR = 1.944 mm 3 /min and SR = 3.24 lm with a maximum error of 8.24%.

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Section: Introductionmentioning

confidence: 97%

Multi-objective optimization of process parameter in EDM using low-frequency vibration of workpiece assigned for SKD61

et al. 2019

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Optimizing process parameters in edm using low frequency vibration for material removal rate and surface roughness

Huu

Ngo

Nguyen

2021

Journal of King Saud University - Engineering Sciences

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Ultrasonic Vibration Assisted Electro-Discharge Machining (EDM)—An Overview

et al. 2019

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Many of the industrial processes, including material removal operation for shape generation on the surface of material, exploit the assistance of ultrasonic vibrations. This trend of using ultrasonic vibration in order to improve the process performance is becoming more and more prominent recently. One of the significant applications of this ultrasonic vibration is in the industrial processes such as Electro-discharge machining (EDM), where ultrasonic vibration (UV) is inserted as a medium for enhancing the process performance. Mostly ultrasonic vibration is applied along with the EDM process to increase the efficiency of the process through debris cleansing from the sparking gap. There have been significant changes in ultrasonic assisted technology during the past years. Due to its inherent advantages, ultrasonic assistance infiltrated in different areas of EDM, such as wire cut EDM, micro EDM and die sinking EDM. This article presents an overview of ultrasonic vibration applications in electric discharge machining. This review provides information about modes of UV application, impacts on parameters of performance, optimization and process designing on difficult-to-cut materials. On the bases of available research works on ultrasonic vibration assisted EDM, current challenges and future research direction to improve the process capabilities are identified. Literature suggested improved material removal rate (MRR), increased surface roughness (SR) and tool wear ratio (TWR) due to the application of ultrasonic vibration assisted EDM. However, tool wear and surface roughness can be lessened with the addition of carbon nanofiber along with ultrasonic vibration. Moreover, the application of ultrasonic vibration to both tool and workpiece results in higher MRR compared to its application to single electrode.

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Analysis of the Effect of Ultrasonic Vibrations on the Performance of Microelectrical Discharge Machining of A2 Tool Steel on the Diesel Engine Performance

Cited by 3 publications

References 15 publications

Multi-objective optimization of process parameter in EDM using low-frequency vibration of workpiece assigned for SKD61

Multi-objective optimization of process parameter in EDM using low-frequency vibration of workpiece assigned for SKD61

Optimizing process parameters in edm using low frequency vibration for material removal rate and surface roughness

Ultrasonic Vibration Assisted Electro-Discharge Machining (EDM)—An Overview

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