Effect of ultrasonic low - frequency vibration and its direction on machinability in WEDM process

Phan, Ngoc Kim; Muthuramalingam, T.; Ly, Nguyen Trong; Dua, Tran Van

doi:10.1080/10426914.2021.2001524

Cited by 9 publications

(2 citation statements)

References 18 publications

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“…Available technologies in this field include abrasive-water jets, electrochemical discharge, laser, and vibration-assisted machining (VAM) [1]. Recent research in the VAM integrates vibration energy into conventional or non-conventional mechanical manufacturing processes such as turning [2], drilling [3], milling [4], EDM [5], or additive manufacturing [6]. The vibration-integrated source used in these systems is further classified into resonant and non-resonant modes.…”

Section: Introductionmentioning

confidence: 99%

Design Optimization of Compliant Mechanisms for Vibration- Assisted Machining Applications Using a Hybrid Six Sigma, RSM-FEM, and NSGA-II Approach

Pham¹,

Nguyen²,

Dang³

et al. 2023

Journal of Machine Engineering

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Vibration-assisted machining, a hybrid processing method, has been gaining considerable interest recently due to its advantages, such as increasing material removal rate, enhancing surface quality, reducing cutting forces and tool wear, improving tool life, or minimizing burr formation. Special equipment must be designed to integrate the additional vibration energy into the traditional system to exploit those spectacular characteristics. This paper proposes the design of a new 2-DOF high-precision compliant positioning mechanism using an optimization process combining the response surface method, finite element method, and Six Sigma analysis into a multiobjective genetic algorithm. The TOPSIS method is also used to select the best solution from the Pareto solution set. The optimum design was fabricated to assess its performance in a vibration-assisted milling experiment concerning surface roughness criteria. The results demonstrate significant enhancement in both the manufacturing criteria of surface quality and the design approach criteria since it eliminates modelling errors associated with analytical approaches during the synthesis and analysis of compliant mechanisms.

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Section: Introductionmentioning

confidence: 99%

Design Optimization of Compliant Mechanisms for Vibration- Assisted Machining Applications Using a Hybrid Six Sigma, RSM-FEM, and NSGA-II Approach

Pham¹,

Nguyen²,

Dang³

et al. 2023

Journal of Machine Engineering

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show abstract

“…This quantity, based on its definition by Equation ( 4), is similar to the taper rate or the tangent of taper angle, calculated in various machining processes and should be minimum for straighter holes [43][44][45][46]. Conicity is one of the important parameters regarding the shape accuracy of produced features, especially holes [44,[46][47][48][49] as under various conditions the produced holes are usually cone-shaped instead of cylindrical. This parameter can also indicate the morphology of the holes, as when the entry diameter is lower than the exit diameter, the negative value of CY indicates a hole with reversed conicity [42].…”

Section: Selection Of the Process Parametersmentioning

confidence: 99%

Influence of Silver-Coated Tool Electrode on Electrochemical Micromachining of Incoloy 825

et al. 2023

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Incoloy 825 alloy is often used in calorifiers, propeller shafts, and tank vehicles owing to the improved resistance to aqueous corrosion. The electrochemical micromachining process can be utilized to machine such an engineering material owing to higher precision and lower tool wear. In the present study, an investigation was performed to enhance the process of creating micro-holes using silver-coated copper tool electrodes. The sodium nitrate electrolyte was used under different levels of input parameters such as voltage, electrolyte concentration, frequency, and duty cycle with a view to improving material removal rate, conicity, overcut, and circularity. It was found that silver-coated copper tool electrode had a high material removal rate (MRR), better overcut, conicity, and circularity compared to uncoated copper tools in most cases, due to its high corrosive resistance and electrical conductivity. From SEM and EDS analysis, it was observed that better surface topography of the micro-holes is obtained with silver-coated copper tool electrode while machining Incoloy 825 alloy in the micromachining process.

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Prediction and Optimization of Ultrasonic Vibration Assisted Wire EDM Process for AISI P20 + Ni Using COOT Optimization Algorithm Based Deep Neural Network

Kumar,

Das

2024

J. Vib. Eng. Technol.

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Effect of ultrasonic low - frequency vibration and its direction on machinability in WEDM process

Cited by 9 publications

References 18 publications

Design Optimization of Compliant Mechanisms for Vibration- Assisted Machining Applications Using a Hybrid Six Sigma, RSM-FEM, and NSGA-II Approach

Design Optimization of Compliant Mechanisms for Vibration- Assisted Machining Applications Using a Hybrid Six Sigma, RSM-FEM, and NSGA-II Approach

Influence of Silver-Coated Tool Electrode on Electrochemical Micromachining of Incoloy 825

Prediction and Optimization of Ultrasonic Vibration Assisted Wire EDM Process for AISI P20 + Ni Using COOT Optimization Algorithm Based Deep Neural Network

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