Wanfei Ren

Wanfei Ren
Changchun University of Science and Technology | CUST · Mechanical and Electrical Engineering

About

31
Publications
2,278
Reads
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141
Citations
Citations since 2017
31 Research Items
141 Citations
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201720182019202020212022202301020304050
201720182019202020212022202301020304050
201720182019202020212022202301020304050

Publications

Publications (31)
Article
A novel approach of localized electrochemical deposition under the tip effect is proposed to manufacture re‐entrant structures, as described in the article number 2200881 by Jinkai Xu, Wanfei Ren, and co‐workers. Employing the tip effect, the electrochemical reduction rate at the edges of the micro‐pillar is fast, and the formation of re‐entrant st...
Article
In this work, we present a simple technique for green fabrication of slippery liquid-infused surface (SLIS) with anti-friction property on various metallic substrates using wire electrical discharge machining. Micro-crater structures were successfully obtained, and the surface had excellent liquid-repellent property after modification and infusion...
Article
In this work, a multi-physics field coupling model based on electric field, gas-liquid two-phase flow field ,and temperature field of forward flow electrochemical trepanning (FFECT) blades was established, and the distribution law of hydrogen bubble volume fraction, electrolyte temperature, and electrolyte conductivity in the machining gap was obta...
Article
Re‐entrant structures on the metallic surface play an essential role in the surface properties of materials. However, low efficiency in preparation of such structures decreases their presence in different application areas. This study introduces a new method of localized electrochemical deposition (LECD)manufacturing of the re‐entrant structures by...
Article
Meniscus‐confined electrodeposition (MCED), as one of multi‐functional additive manufacturing methods for micro‐sensor manufacturing and flexible electrical interconnection, has great potential in future miniaturized communication devices. At present, however, the understanding of the multi‐physical field processes involved in this method, such as...
Article
Ultrasonic vibration grinding improves the surface quality and processing efficiency of sapphire machining compared with conventional grinding, but its nano-scale deformation mechanism is still unclear. In this study, the molecular dynamics method was used to simulate the ultrasonic vibration cutting of a single abrasive grain along the [(Formula p...
Article
Full-text available
Aiming to solve the problems of the low electrolyte flow rate at leading edge and trailing edge and poor uniformity of the end clearance flow field during the electrochemical machining (ECM) of diffuser blades, a gap flow field simulation model was established by designing three liquid-increasing channels at the leading edge and the trailing edge o...
Preprint
Full-text available
Meniscus-confined electrodeposition (MCED), as one of multi-functional additive manufacturing methods for micro-sensor manufacturing and flexible electrical interconnection, has great potential in future miniaturized communication devices. At present, however, the understanding of the multi-physical field processes involved in this method, such as...
Article
Full-text available
In this study, a simple method without any additional chemical modification is proposed to fabricate underoil superhydrophobic surfaces with micro- and nano-hierarchical structures using a nanosecond laser system. The fabricated surfaces exhibited extreme superhydrophobicity and underoil superhydrophobicity with high contact angles of 153.8 ± 1.5°...
Article
Full-text available
The fabrication of pure copper microstructures with submicron resolution has found a host of applications such as 5G communications and highly sensitive detection. The tiny and complex features of these structures can enhance device performance during high-frequency operation. However, the easy manufacturing of microstructures is still a challenge....
Preprint
Full-text available
Aiming to solve the problems of the low electrolyte flow rate at leading edge and trailing edge and poor uniformity of the end clearance flow field during the electrochemical machining (ECM) of diffuser blades, a gap flow field simulation model was established by designing three liquid-increasing channels at the leading edge and the trailing edge o...
Article
As one of the most widely used metal materials, steel takes on an important role in deep sea and space exploration fields. However, the annual economic loss caused by steel corrosion is immeasurable. To resolve the problem, the localized pulse electrochemical machining (PECM), an efficient, fast and environment-friendly method, was introduced to fa...
Article
Full-text available
Thanks to its excellent mechanical properties, magnesium alloys have many potential applications in the aerospace and other fields. However, failure to adequately solve corrosion problems of magnesium alloy becomes one of the factors restricting its wide use in many industrial fields. Inspired by nature, researchers designed and fabricated bio-insp...
Article
Full-text available
Based on mold steel (GCr12), the relationship between pulse electrochemical machining (PECM) parameters and surface for wetting characteristics was explored. The groove structure with the depth of 0.5mm has been machined on the surface of the steel casting GCr12 by impulse electrochemical machine. Under the best processing parameters, the hydrophob...
Article
Full-text available
An experimental study was conducted on laser-assisted machining of β21s titanium alloy to investigate the effects of input variables of laser-assisted micromachining (LAMM) and conventional micromachining (CM) on the surface quality of β21s titanium alloy. At the same time, the tool wear patterns of LAMM and CM were revealed, and the wear law of th...
Article
Full-text available
Presented in 1996, maskless localized electrochemical deposition (LECD) is an emerging and unconventional manufacturing technology that originated from precision electroforming and electroplating. As a novel additive manufacturing technology, it forms a three-dimensional structure layer by layer at atomic scale. In this work, we present a review of...
Article
Full-text available
In this work, the localized electrochemical micro additive manufacturing technology based on the FluidFM (fluidic force microscope) has been introduced to fabricate micro three-dimensional overhang metal structures at sub-micron resolution. It breaks through the localized deposition previously achieved by micro-anode precision movement, and the mic...
Article
In this work, the bio-inspired reversible switch between underwater superoleophobicity/superaerophobicity and oleophilicity/aerophilicity and improved anti-reflective property were successfully demonstrated on the nanosecond laser structured titanium surfaces. Titanium materials were first transformed to be superhydrophobic after nanosecond laser a...
Article
Full-text available
The paper presents simulation and experiment to analyze the thrust force and cutting heat of conventional drilling (CD) and ultrasonic vibration–assisted drilling (UAD) with different tool point angles. The HAAS vertical machining center combined with ultrasonic vibrating shank has been used to study the hole quality in drilling of Ti-6Al-4V materi...
Article
Full-text available
Reducing the contact time of a water droplet on non-wetting surfaces has great potential in the areas of self-cleaning and anti-icing, and gradually develops into a hot issue in the field of wettability surfaces. However, the existing literature on dynamic behavior of water drops impacting on superhydrophobic surfaces with various structural shapes...
Article
Full-text available
This research studied the surface homogenization and morphology of a Ti-6Al-4V alloy using the longitudinal-torsional coupled ultrasonic vibration-assisted milling (UVAM) of a ball-end cutter, in which a method of continuous processing between the flat surface and the freeform surface connection was proposed. The cutting experiments compared the UV...
Preprint
This paper aims to study the surface homogenization and integrity of Ti-6Al-4V alloy by longitudinal-torsional coupled ultrasonic vibration assisted ball-end milling. A method of continuous processing between the flat surface and freeform surface connection is proposed by using ultrasonic vibration assisted ball-end precision milling, during this p...
Article
In order to investigate the influence of the recast layer obtained by wire electrical discharge machining (WEDM) for 7075 aluminum alloy on the mechanical physical properties of the workpiece, we carried out research on the geometry parameters, microstructure, adhesion, wear resistance and corrosion resistance of the recast layer. The results show...
Article
In this paper, a lot of micron-sized sand granular structures were formed on the substrate of the stainless steel mesh (SSM) by laser treatment. The rough surface with sand granular structures showed superhydrophilic in air and superoleophobic under water. With its special wettability, the SSM by laser treatment could achieve the separation of the...

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Project (1)
Project
studying the manufacturing mechanism.