Controlled Phase Interactions Between Pulsed Electric Fields, Ultrasonic Motion, and Magnetic Fields in an Anodic Dissolution Cell

Bradley, Curtis; Samuel, Johnson

doi:10.1115/1.4038569

Cited by 10 publications

(4 citation statements)

References 26 publications

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“…Recent studies indicate that the removal process can be particularly effective when the machining zone is superimposed with an external magnetic field. Higher machining rates with lower surface roughness [55][56][57] and better localisation of the processing due to reduced abrasions outside the main process zone [58] have been reported. Furthermore, the magnetic field superimposition significantly impacts the electrolyte flow, especially around surface structures of the electrodes [59,60].…”

Section: Electrochemical Machining With Superimposed Magnetic Field-m...mentioning

confidence: 99%

Flow Visualisation and Evaluation Studies on Metalworking Fluid Applications in Manufacturing Processes—Methods and Results

Fritsching,

Buss,

Tonn

et al. 2023

Processes

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Metalworking operations rely on the successful application of metalworking fluids (MWFs) for effective and efficient operation. Processes such as grinding or drilling often require the use of MWFs for cooling, lubrication, and chip removal. Electrochemical machining processes require electrolyte flow to operate. However, in those machining operations, a fundamental understanding of the mode of action of MWF is lacking due to the unknown flow dynamics and its interaction with the material removal during the process. Important information on the behaviour of MWFs during machining can be obtained from specific experimental flow visualisation studies. In this paper, promising flow visualisation analysis techniques applied to exemplary machining processes (grinding, sawing, drilling, and electrochemical machining) are presented and discussed. Shadowgraph imaging and flow measurements, e.g., particle image velocimetry, allow the identification of typical flow and MWF operating regimes in the different machining processes. Based on the identification of these regimes, efficient machining parameters and MWF applications can be derived. In addition, detailed experimental analyses of MWFs provide essential data for the input and validation of model development and numerical simulations within the Priority Programme SPP 2231 FluSimPro.

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Section: Electrochemical Machining With Superimposed Magnetic Field-m...mentioning

confidence: 99%

Flow Visualisation and Evaluation Studies on Metalworking Fluid Applications in Manufacturing Processes—Methods and Results

Fritsching,

Buss,

Tonn

et al. 2023

Processes

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show abstract

“…Finally, a complete micro-hole array cannot be performed when the stroke of the electrode array is finished [7].…”

Section: Influence Of Electrolyte Jet On Machining Micro-hole Arraymentioning

confidence: 99%

“…The electrochemical dissolution rate at these holes is increased. Finally, a complete micro-hole array cannot be performed when the stroke of the electrode array is finished [7].…”

Section: Influence Of Electrolyte Jet On Machining Micro-hole Arraymentioning

confidence: 99%

“…Moreover, the short circuit of the two poles may damage the tool electrode and work-piece. According to the literature, many scholars propose using ultra-short pulse (nanosecondscale) voltage [1][2][3][4], special feed mode [5], low-frequency electrode vibration [3,6,7] or a rotating spiral electrode [8,9] to solve the electrolyte renewal problem in the machining gap. However, the these methods have higher equipment costs and cannot enhance accuracy and surface quality significantly.…”

Section: Introductionmentioning

confidence: 99%

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An Investigation of Ultrasonic-Assisted Electrochemical Machining of Micro-Hole Array

Shen

Tsui

2021

Processes

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This paper uses an ultrasonic vibration-integrated array electrode for 301 stainless steel micro-hole drilling. The influence of machining parameters such as ultrasonic vibration amplitude, working voltage, pulse-off time and electrode feed rate on different processing characteristics are discussed. The experimental results show that the ultrasonic-assisted electrode array vibrating generates a periodic pressure difference for the electrolyte. The periodic pressure difference forms a pumping effect and a cavitation effect. The two effects can effectively renew the electrolyte in the machining gap and discharge the reaction product, gas and reaction heat from the gap. Machining speed can be increased by over 500% when the ultrasonic amplitude increases from 0.94 μm to 2.87 μm. Micro-hole drilling with the optimum experimental parameter combination of ultrasonic amplitude 2.87 μm, working voltage 11 V, pulse-off time 50 μs and electrode feed rate 5 μm/s can result in a minimum average diagonal length and a smaller amount of variation in diagonal length. It also improves the inlet and outlet taper angle of micro-holes.

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Ultrasonic‐Assisted Electrochemical Micromachining

Kunar

Veeranjaneyulu

Sree

et al. 2023

Hybrid Micromachining and Microfabrication Technologies

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Controlled Phase Interactions Between Pulsed Electric Fields, Ultrasonic Motion, and Magnetic Fields in an Anodic Dissolution Cell

Cited by 10 publications

References 26 publications

Flow Visualisation and Evaluation Studies on Metalworking Fluid Applications in Manufacturing Processes—Methods and Results

Flow Visualisation and Evaluation Studies on Metalworking Fluid Applications in Manufacturing Processes—Methods and Results

An Investigation of Ultrasonic-Assisted Electrochemical Machining of Micro-Hole Array

Ultrasonic‐Assisted Electrochemical Micromachining

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