Bionic design of tools in cutting: Reducing adhesion, abrasion or friction

Yu, Haiyue; Han, Zhiwu; Zhang, Junqiu; Zhang, Shuaijun

doi:10.1016/j.wear.2021.203955

Cited by 40 publications

(23 citation statements)

References 102 publications

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“…Biomimetics studies the well-adapted formations, structures, and biomechanical functionalities of living organisms and mimics them as prototypes for new engineering parts and/or systems. Biomimetic designs of cultivation tools are suggested to reduce resistance, enhance the structural strength of tools and improve working performance (Zhang et al, 2016;Yu et al, 2021). Several researchers have employed biomimetics to develop and optimise soil-engaging tools.…”

Section: Introductionmentioning

confidence: 99%

Biomimetic tool design improves tillage efficiency, seedbed quality, and straw incorporation during rototilling in conservation farming

Torotwa

Ding²,

Awuah³

et al. 2023

J. Agric. Eng.

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Rotary tillage facilitates conservation agriculture in rice-based crop farming systems through minimal soil disturbance for seedbed preparation and crop residue management. However, efficiency of rotary tiller blades is hampered by degraded paddy soils and excessive crop residue conditions. Biomimetics presents an edge in the optimisation design of cultivation tools and can be employed to improve the efficiency of rotary tiller blades. This study was designed to evaluate the adaptability and performance of biomimetic rotary tiller blades inspired by the geometric structure of a mole rat’s claw. Field experiments were conducted to evaluate the blades’ torque and power requirements, soil fragmentation, displacement characteristics, and the rate of straw incorporation at three tillage depths (i.e., 40, 70, and 100 mm). Results revealed that the biomimetic blades minimised torque by up to 21.05%, had lower specific power requirements, and produced finer tilths with granular and more even clod sizes than conventional blades. It also achieved more redistribution of topsoil and improved the straw burial rate. The biomimetic rotary tiller blades are thus energy-efficient and can improve soil structure and the quality of seedbeds, besides managing crop residues through incorporation, and therefore advance conservation tillage in intensive farming systems.

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Section: Introductionmentioning

confidence: 99%

Biomimetic tool design improves tillage efficiency, seedbed quality, and straw incorporation during rototilling in conservation farming

Torotwa

Ding²,

Awuah³

et al. 2023

J. Agric. Eng.

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“…[9,10] Similarly, although the microcutting method can deliver higher accuracy when machining different types of materials with complex shapes, it is easily constrained by small cutting tools, low cutting speed, poor cutting ability, and tool deformation and fracture. [11][12][13][14] Micro-electrical discharge machining process does not involve cutting force and is highly consistent; however, the electrode wire is worn and broken easily during machining. [15,16] Micro-ion beam machining has high precision and can be controlled without great effort, but its low machining efficiency and the expensive equipment limit its application.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Experiment of Localized Electrochemical Deposition with Re‐Entrant Structures by Applying the Tip Effect

Zou

Ren

et al. 2022

Adv Eng Mater

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Re‐entrant structures on the metallic surface play an essential role in the surface properties of materials. However, low efficiency in the preparation of such structures decreases their presence in different application areas. Herein, a new method of localized electrochemical deposition (LECD) manufacturing of re‐entrant structures by applying the tip effect (TE) is introduced. Thanks to this method, manufacturing complex re‐entrant structures can be realized rapidly and efficiently by a simple process without any external control. First, electrochemical measurement methods are used to analyze the copper electrodeposition mechanism, and then a simulation software is adopted to simulate this method. The simulation results suggest that the deposition velocity of the four edges on the copper microcolumn is faster than that of the other position, which means that applying TE makes it feasible to prepare re‐entrant structures by localized electrodeposition. Moreover, experimental results show that the deposition potential of −0.70 V and the deposition time of 900 s are the optimal parameter combinations to obtain the best re‐entrant structures. In addition, the volumetric deposition rate of a single re‐entrant structure can reach 924.8 μm3 s−1. This method provides an opportunity for large‐area manufacturing of re‐entrant structures and lays the foundation for future applications.

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“…[ 1 ] Microcutting has strong 3D machining ability and high process stability, but the cutting speed is low and the tool wear is serious. [ 2,3a ] Besides, microelectrical discharge machining (micro‐EDM) has no requirement for the strength and hardness of metal materials, and the macroscopic cutting force is small, but the wear and tear of microelectrode is inevitable and the clamping stability of microelectrode is low [4a] . In addition, although the tool cathode of microelectrochemical machining (micro‐ECM) has no wear and thermal stress, the machining precision is not high, the design of the tool cathode is troublesome, and the cycle is long [3b] .…”

Section: Introductionmentioning

confidence: 99%

“…[ 2,3a ] Besides, microelectrical discharge machining (micro‐EDM) has no requirement for the strength and hardness of metal materials, and the macroscopic cutting force is small, but the wear and tear of microelectrode is inevitable and the clamping stability of microelectrode is low [4a] . In addition, although the tool cathode of microelectrochemical machining (micro‐ECM) has no wear and thermal stress, the machining precision is not high, the design of the tool cathode is troublesome, and the cycle is long [3b] . In contrast, localized electrodeposition technology is a typical additive manufacturing technology in which metal microstructure is fabricated layer by layer in the form of atoms.…”

Section: Introductionmentioning

confidence: 99%

Simulation and Experimental Study on Metal Microstructure of Meniscus‐Confined Electrodeposition

Ren

et al. 2022

Adv Eng Mater

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Meniscus-con ned electrodeposition (MCED), as one of multi-functional additive manufacturing methods for micro-sensor manufacturing and exible electrical interconnection, has great potential in future miniaturized communication devices. At present, however, the understanding of the multi-physical eld processes involved in this method, such as electrodeposition, uid dynamics, mass and heat transfer, is limited, and the deposition forming process has not yet been well explained. In this work, the manufacturing process of metal microstructure used by MCED was studied, and the contour features of the microstructure were characterized. Simultaneously, based on the law of liquid phase mass transfer in microzone, the theoretical model of MCED process is established, the important role of Marangoni effect in evaporation process is revealed, and the effect of evaporation process on MCED is analyzed and discussed. Besides, the effect of evaporation process on the dynamic process of deposition is further proved by simulation analysis. The additive manufacturing equipment based on MCED was built to manufacture metal microstructure. Furthermore, the effects of evaporation on the morphology, roundness, vertical angle and chemical composition of deposited metal microstructure were analyzed experimentally. These results provide a promising platform for the direct fabrication of nanocircuit interconnections, micro sensors and micro antennas.

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Bionic design of tools in cutting: Reducing adhesion, abrasion or friction

Cited by 40 publications

References 102 publications

Biomimetic tool design improves tillage efficiency, seedbed quality, and straw incorporation during rototilling in conservation farming

Biomimetic tool design improves tillage efficiency, seedbed quality, and straw incorporation during rototilling in conservation farming

Simulation and Experiment of Localized Electrochemical Deposition with Re‐Entrant Structures by Applying the Tip Effect

Simulation and Experimental Study on Metal Microstructure of Meniscus‐Confined Electrodeposition

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