Micro-SACE scanning process with different tool-surface roughness

Pu, Yubin; Tong, Hao; Li, Junjie; Li, Yong; Ji, Bolin

doi:10.1080/10426914.2020.1762209

Cited by 15 publications

(4 citation statements)

References 14 publications

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“…Considerable efforts have been made to control the gas film and the discharge point using various tool shapes or surface morphology (Arab et al, 2019a;Cheng et al, 2010;Pu et al, 2020;Yang et al, 2010), but the current difficulty is how to reduce the severe wear and tear phenomenon of micro-tools in SACE processes. The authors believe that the use of reliable sidewall-insulated tools may be a solution.…”

Section: Electric Discharge and Electrochemical Energy Couplingmentioning

confidence: 99%

Tooling aspects of micro electrochemical machining (ECM) technology: Design, functionality, and fabrication routes

Liu,

Karim,

Arshad

et al. 2023

Journal of Materials Processing Technology

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Section: Electric Discharge and Electrochemical Energy Couplingmentioning

confidence: 99%

Tooling aspects of micro electrochemical machining (ECM) technology: Design, functionality, and fabrication routes

Liu,

Karim,

Arshad

et al. 2023

Journal of Materials Processing Technology

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“…Their suggestions allowed for the peculiarities of indigenous grades of walnut trees, while focusing on possible yield [37][38][39][40]. It is equally important that there are a lot of different aspects of deep walnut processing that are considered widely and should be allowed for further researches, such as: walnut production technology [41,42]; genetic resources [36,43,44]; walnut peeling processes [45][46][47]; walnut processing waste valorization that emphasizes the high interest in providing technological non-waste processing considerations [48,49].…”

Section: Literature Reviewmentioning

confidence: 99%

Enterprise Activity Modeling in Walnut Sector in Ukraine

et al. 2021

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The main goal of this study was to provide a critical analysis of the oil and fat sub-complex for deep walnut processing, to determine and compare the profitability of enterprises’ activities under different business models for implementation in the agro-food value chain. The latter was considered as an important factor for the development of the domestic market of walnuts and export opportunities. Business modeling of the enterprise activity in the oil and fat sub-complex for deep walnut processing was carried out. The stages of production and marketing activities of the enterprise from the garden planting or the purchase of the processed raw materials to the sale of the processed raw materials and products obtained from walnut processing depending on the chosen business model were considered. A comparative analysis of profitability of the enterprise activity and absolute values of income and profitability indicators under various business models of the enterprise activity were shown. The most cost-effective business-model entailed the combination of walnut production and its processing, which will provide profitability of up to 4640.32% in the 20th year of the project implementation. The results of the given study are intended for the agricultural enterprises of central region of Ukraine.

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“…It can machine the microstructures such as microfluidic chips, micromixers, hot embossing templates, micro hinges, and channels for micro-reactors [4]. The pro-cessing mechanism of ECDM is the combination of physical removal and chemical etching under the high pressure and high temperature generated from spark discharges [5][6]. A pulsed power supply provides the energy of spark discharges between a tool electrode and an auxiliary electrode.…”

Section: Introductionmentioning

confidence: 99%

Reducing Tool-Tip Wear in Micro ECDM Scanning Process with Feedback Control of Flexible Contact Force

Nawaz¹,

Cao²,

Tong

et al. 2023

Preprint

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While machining the quartz glass in micro ECDM (electrochemical discharge machining) scanning process, the wear of tool electrode is adverse to machining accuracy. In this research, the developed spindle with servo feedback control of flexible force is used to avoid the instantaneous change of contact force that leads to the bending of tool electrode when the machining surface is uneven. The basic experiments are carried out through optimizing the processing parameters of open-circuit voltage, scanning speed, and scanning time, and then the mechanism and key influential factors of tool wear are analyzed. It is found that the tool wear is caused by the chemical reaction, the heat from discharges, and the friction between tool-electrode tip and workpiece surface. Therefore, three methods for reducing the tool wear are proposed and experimented. Method I: the low temperature electrolyte is applied in increasing the heat dissipation ratio of the tool-tip. Method II: the side wall of tool electrode is insulated by an oil film to constrain spark discharges only at the tool-tip bottom. Method III: more bubbles are pumped to promote the formation of gas film and the electrolyte renewal. Experimental results show the tool wear can be obviously reduced, so the machining accuracy of micro structures on quartz glass is improved in micro ECDM scanning process.

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Micro-SACE scanning process with different tool-surface roughness

Cited by 15 publications

References 14 publications

Tooling aspects of micro electrochemical machining (ECM) technology: Design, functionality, and fabrication routes

Tooling aspects of micro electrochemical machining (ECM) technology: Design, functionality, and fabrication routes

Enterprise Activity Modeling in Walnut Sector in Ukraine

Reducing Tool-Tip Wear in Micro ECDM Scanning Process with Feedback Control of Flexible Contact Force

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