Machining performance enhancement of deep micro drilling using electrochemical discharge machining under magnetohydrodynamic effect

Xu, Yi; Jiang, Baoyang

doi:10.1007/s00170-021-06657-8

Cited by 21 publications

(10 citation statements)

References 20 publications

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“…By controlling different volume fractions of iron particles in Galinstan (GaInSn), the magnetohydrodynamic (MHD) phenomena can be observed by the interaction of the magnetic field with fluid flows. [ 42 ] Therefore, this smart fluid can respond immediately to an applied magnetic field and features reversible change from liquid to semi‐solid or solid state, [ 43 ] Figure S8 (Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

“…By controlling different volume fractions of iron particles in Galinstan (GaInSn), the magnetohydrodynamic (MHD) phenomena can be observed by the interaction of the magnetic field with fluid flows. [42] Therefore, this smart fluid can respond immediately to an applied magnetic MLMD maps a reciprocating motion of a magnetic signal to a cyclic electrical output signal. Both logic computing and programing can be achieved (right).…”

Section: Non-wetting Characteristics Of Mlmdmentioning

confidence: 99%

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A Soft Reconfigurable Circulator Enabled by Magnetic Liquid Metal Droplet for Multifunctional Control of Soft Robots

Zhu

Chen

et al. 2023

Advanced Science

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Integrated control circuits with multiple computation functions are essential for soft robots to achieve diverse complex real tasks. However, designing compliant yet simple circuits to embed multiple computation functions in soft electronic systems above the centimeter scale is still a tough challenge. Herein, utilizing smooth cyclic motions of magnetic liquid metal droplets (MLMD) in specially designed and surface‐modified circulating channels, a soft reconfigurable circulator (SRC) consisting of three simple and reconfigurable basic modules is described. Through these modules, MLMD can utilize their conductivity and extreme deformation capabilities to transfer their simple cyclic motions as input signals to programmable electrical output signals carrying computing information. The obtained SRCs make it possible for soft robots to perform complex computing tasks, such as logic, programming, and self‐adaptive control (a combination of programming and feedback control). Following, a digital logic‐based grasping function diagnosis, a locomotion reprogrammable soft car, and a self‐adaptive control‐based soft sorting gripper are demonstrated to verify SRCs’ capabilities. The unique attributes of MLMD allow complex computations based on simple configurations and inputs, which provide new ways to enhance soft robots' computing capabilities.

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Section: Resultsmentioning

confidence: 99%

“…By controlling different volume fractions of iron particles in Galinstan (GaInSn), the magnetohydrodynamic (MHD) phenomena can be observed by the interaction of the magnetic field with fluid flows. [42] Therefore, this smart fluid can respond immediately to an applied magnetic MLMD maps a reciprocating motion of a magnetic signal to a cyclic electrical output signal. Both logic computing and programing can be achieved (right).…”

Section: Non-wetting Characteristics Of Mlmdmentioning

confidence: 99%

A Soft Reconfigurable Circulator Enabled by Magnetic Liquid Metal Droplet for Multifunctional Control of Soft Robots

Zhu

Chen

et al. 2023

Advanced Science

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“…Microfluidic chips with microvascular geometry can be obtained by various microfabrication techniques, for example, casting gels around a needle, [ 74,75 ] glass channels, [ 76,77 ] or metal wire. [ 78 ] Solid polymers, for example, PDMS, [ 79 ] polyester, [ 80 ] and hydrogels, such as collagen, [ 81,82 ] fibrin, [ 83,84 ] alginate, [ 85 ] gelatin, [ 86 ] and polyethylene glycol (PEG) [ 87 ] are all can be used for fabricating microfluidic chips.…”

Section: Design Principles Of Microfluidic Devices For Coagulation Researchmentioning

confidence: 99%

Microfluidic systems toward blood hemostasis monitoring and thrombosis diagnosis: From design principles to micro/nano fabrication technologies

Nie

et al. 2022

VIEW

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Perfusable endothelialized models of microfluidic systems that recapitulate unique biological and biophysical microvasculature conditions are improved with micro/nano engineering advances for monitoring of blood hemostasis and thrombosis treatment. Although bio‐sensors and monitoring devices significantly advance in measuring platelet aggregation and thrombosis kinetics, currently platelet aggregation tests still do not meet the arising clinical requirements. Trying to seek new solutions for such a demanding from clinics, the present review provides an overview of design principles of microfluidic systems and micro/nano fabrication strategies in studying the platelet adhesion and aggregation. We critically sketch the characteristics of microfluidic systems to elucidate the role of platelets in the complex process of thrombus formation. The importance, benefits, and challenges of introduced principles and methods are discussed. The potential from various of basic research to clinical applications is also briefly discussed to help guide designing more versatile point‐of‐care devices for hemostasis monitoring and thrombosis diagnosis and treatment.

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“…The bubble departure radius signi cantly in uences the gas lm formation. The departure radius with and without the MHD convection is given by [29].…”

Section: Mechanism Of the Processmentioning

confidence: 99%

“…MHD convection decreases bubble accumulation and enhances electrolyte circulation, which improves machining e ciency. A depth of more than 1000 microns obtains with MHD convection [19].…”

Section: Introductionmentioning

confidence: 99%

Micro Slit Fabrication Using Magnetic-Assisted-ECDM and Parametric Optimization by Metaheuristic Algorithms

Gehlot

Jha²,

Jain³

2022

Preprint

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Micro-slit fabrication of more than 1000 microns thick workpieces using the ECDM process is a complicated task since the ejection efficiency to remove the adhered particle dissolved from the workpiece in the electrolyte decreases with a higher depth of cut. Here micro-slit fabrication of more than 1200 µm thickness was carried out with magnetic field application on the ECDM. The magnetic field induces MHD convection on the electrolyte flow around the tool, which creates vorticity on the electrolyte. The centrifugal force created by the fluid when it rotates under MHD convection removes the material at a higher depth of cut. The machining performance in terms of maximum slit-cut thickness improves with increasing the magnetic field strength up to the optimum level because it induces the centrifugal force on the bubble, which enhances the gas film formation and discharge frequency. The experiments were conducted to fabricate a micro-slit with Taguchi L18 design and observe the effect of voltage, concentration, magnetic strength, and feed rate on MRR and width overcut. The magnetic field contributes significantly to the machining rate and overcut improvements. The metaheuristic algorithms, i.e., particle swarm optimization, differential evolution, and TLBO, applied and compared the optimal results of response parameters. The results reveal that the optimum value of MRR and WOC are the same, but the time and the iterations necessary to reach the optimal solution differ.

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Machining performance enhancement of deep micro drilling using electrochemical discharge machining under magnetohydrodynamic effect

Cited by 21 publications

References 20 publications

A Soft Reconfigurable Circulator Enabled by Magnetic Liquid Metal Droplet for Multifunctional Control of Soft Robots

A Soft Reconfigurable Circulator Enabled by Magnetic Liquid Metal Droplet for Multifunctional Control of Soft Robots

Microfluidic systems toward blood hemostasis monitoring and thrombosis diagnosis: From design principles to micro/nano fabrication technologies

Micro Slit Fabrication Using Magnetic-Assisted-ECDM and Parametric Optimization by Metaheuristic Algorithms

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