A novel bionic micro-textured tool with the function of directional cutting-fluid transport for cutting titanium alloy

Chen, Junyun; Liu, Dehui; Jin, Tianye; Qi, Yunze

doi:10.1016/j.jmatprotec.2022.117816

Cited by 23 publications

(5 citation statements)

References 29 publications

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“…Unidirectional transport of fluids without external energy input is of great interest for applications such as water mist collection, cooling and heat dissipation, drug delivery, etc and has attracted much attention [1][2][3][4]. In nature, cacti have special conical spines [5] and spider silk has periodically alternating joints and spindle junction structures [6,7].…”

Section: Introductionmentioning

confidence: 99%

One-step laser preparation of unidirectional liquid spontaneous transport structures

Zhang,

Wang,

Lian

et al. 2024

Surf. Topogr.: Metrol. Prop.

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The Tilted Wedge Microcavity Array (TWMA) structure of the Nepenthes alata peristome allows for unidirectional fluid transport without any surface energy gradient. However, current methods of creating bionic Nepenthes alata peristome structures have significant improvement room in terms of structural shape, machining efficiency, and cost-effectiveness. To address these issues, in this paper, bionic Nepenthes alata peristome TWMA structures on 7075 aluminium alloy was built via a nanosecond laser with highly efficiency, low cost and flexible processing pattern. A unilateral tilted microcavity structure was fabricated by designing the laser processing path, and at the same time, the samples were tilted to change the angle at which the laser beam hit the working surface. This ensures that the microcavity is machined without destroying the microcavity structure underneath. The variation law of aluminum alloy ablation threshold under the influence of laser incidence angle was studied. The dimensional parameters of the TWMA structure were analysed in relation to laser incidence angle θ, laser processing power P, number of laser scans n, and laser scanning speed V. Additionally, liquid spreading tests were carried out on different surfaces of bionic structures, and the influence of surface wettability on the spreading results was investigated. The results indicate that the ablation threshold decreases initially and then increases with an increase in the laser incidence angle. This reflects the trend of the aluminium alloy absorption rate, which initially increases and then decreases with an increase in the incidence angle. For the prepared TWMA structure, the optimum speed of achieving the unidirectional spreading effect was found to be 2.41 mm/s with a surface contact angle (CA) of 35°. This study presents a low-cost and rapid preparation method for creating liquid unidirectional transport structures without any energy input.

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Section: Introductionmentioning

confidence: 99%

One-step laser preparation of unidirectional liquid spontaneous transport structures

Zhang,

Wang,

Lian

et al. 2024

Surf. Topogr.: Metrol. Prop.

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“…They combined it with a new coating material to produce a bionic cutter tooth that significantly reduced the working energy consumption, average cutting stress, and soil adhesion of the tooth compared to conventional cutter teeth. Chen et al [17] developed a bionic microtextured diamond tool with directional cutting fluid transfer inspired by the microstructure of the peristome of nepenthes, resulting in less wear than other diamond tools, leading to lower cutting forces and higher surface integrity. This paper applies the structural characteristics of the limpet teeth to the tool structure design by preparing limpet teeth and extracting their geometrical features.…”

Section: Introductionmentioning

confidence: 99%

Research on Bionic Force-saving Cutting Tool Based on Structure Characteristics of Limpet's Teeth

Ma¹,

Li²,

Liu³

et al. 2023

Preprint

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Along with the transformation and upgrading of the manufacturing industry and the arrival of the industrial revolution, the structure of parts is becoming more and more complex, the variety of materials, the demand for cutting performance of tools is increasingly diversified, and the design and development of tools are facing many challenges. By studying the cutting phenomena in nature, scholars have discovered that the teeth and claws, etc., of living organisms have unique structural characteristics, the design and development of tools that mimic the structural features of living organisms have become a new research direction. In order to solve the problem of high energy consumption in the cutting process and to reduce the resistance of the cutting process, five bionic cutting tools were designed based on preparation and geometric feature extraction of limpet teeth and applying them to the design of the tool structure, using the cutting force as the cutting performance index, and exploring the cutting performance of the bionic tools by comparing them with ordinary tools. The cutting force analysis revealed that the No. 2 bionic tool had a significant force-saving effect, with a 16.2% reduction in cutting force. The effect of cutting parameters on the No. 2 bionic tool was investigated through single-factor experiments. The results show that a limpet bionic cutting tool with appropriate dimensional parameters has a significant force-saving effect and improves the tool's cutting performance.

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“…Titanium alloy has the reputation of 'marine metal' due to its low density, high strength, non-magnetic and strong toughness. It is widely used in naval vessels, ships, drilling and other marine related fields [1][2][3]. Inspired by lotus leaf, Hydrophobic or superhydrophobic surfaces with micro textures have been widely prepared, and the surfaces have shown great application value in self-cleaning, antifouling, anti-icing, drag reduction and corrosion resistance [4,5].…”

Section: Introductionmentioning

confidence: 99%

Investigation of micro pit array on titanium alloy with hydrophobic surface by through-mask electrochemical micromachining

Meng

Zhang

et al. 2023

Surf. Topogr.: Metrol. Prop.

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TIn order to obtain higher contact angles and improve the hydrophobicity of titanium alloy, the micro pit arrays were fabricated by the through-mask electrochemical micromachining (TMEMM). The theoretical model of surface hydrophobicity between the contact angle and the geometry size of micro pit arrays was developed. Moreover, the multi physical field coupling simulation of TMEMM was carried out. Thus, the direct mapping relationship between the contact angle and the process parameters was obtained by combining the theoretical model with the simulation results. The effect of process prameters, such as electrolyte mass fraction, mask size and processing voltage, was investigated. The optimal combination of process parameters was predicted and verified by experiments. The results show that the errors of the measured values of diameter, spacing, depth and surface contact angle of the micro pit arrays are 2.49%, 6.87%, 7.40% and 6.01% respectively, which indicates that the hydrophobic textured surface with a contact angle of about 141° is successfully fabricated without the modification of low surface energy materials.

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A novel bionic micro-textured tool with the function of directional cutting-fluid transport for cutting titanium alloy

Cited by 23 publications

References 29 publications

One-step laser preparation of unidirectional liquid spontaneous transport structures

One-step laser preparation of unidirectional liquid spontaneous transport structures

Research on Bionic Force-saving Cutting Tool Based on Structure Characteristics of Limpet's Teeth

Investigation of micro pit array on titanium alloy with hydrophobic surface by through-mask electrochemical micromachining

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