Investigation on an integrated approach to design and micro fly-cutting of micro-structured riblet surfaces

Jiao, Feifei; Saravi, Samira Sayad; Cheng, Kai

doi:10.1177/0954406216643982

Cited by 14 publications

(9 citation statements)

References 22 publications

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“…By transferring the image data to the measurement routine through the data transmission system, the measurement routine can likely integrate the in-process measurement with the machining process for the component with micro-structured surfaces, which is essential for future industrial-scale micromanufacturing. 13…”

Section: Resultsmentioning

confidence: 99%

Investigation on an industrial-feasible approach for measurement and assessment of large-sized micro-structured surfaces based on grayscale matching

Hong-hui

Ding

Cheng

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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Multi-scale micro-structured functional surfaces can enhance the interfacial effect on a component by the microtopological structure, likely through realizing or enhancing its lubrication, drag reduction, noise reducing, sealing, and other specific surface functions. However, the realization of these functions requires high-precision machining quality and the occurrence of any defects on the structured surfaces will possibly influence actual performances of the component. The distribution density, morphology, geometry, configuration feature, and position of those microstructures play a decisive role in affecting the functional performance of the component. It imposes a challenge for rapid and accurate measurement of micro-structured surface particularly at a reasonable large size in industrial-scale production. This article presents an innovative industrial-feasible measurement method for micro-structured surfaces using normalized grayscale matching combined with pyramid search strategy, discriminating-step matching strategy, and sensitive area analysis. The method renders the high matching accuracy and rapid processing capability, which also provides the technical solution for industrial-scale micro-manufacturing of large-sized micro-structured surfaces. Well-designed experimental trials are carried out to further evaluate and validate the measurement accuracy and efficiency.

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Section: Resultsmentioning

confidence: 99%

Investigation on an industrial-feasible approach for measurement and assessment of large-sized micro-structured surfaces based on grayscale matching

Hong-hui

Ding

Cheng

et al. 2017

Proceedings of the Institution of Mechanical Engineers, Part B:

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“…17 TRLs relate to the maturity of the process in terms of applying it to industry. They range from TRL 1; which describe a technology in it's infancy; through intermediate TRLs (conceptualisation, laboratory validation, real world application 18 ); and finally to the higher TRLs 7-9 (system completion and 'proof of flight').…”

Section: Fundamental Studies and Transfer Into Industrymentioning

confidence: 99%

“…Figure18. Face wear with shaded error bounds for different coatings; tools used to machine straight slots.…”

mentioning

confidence: 99%

Applying experimental micro-tool wear measurement techniques to industrial environments

Alhadeff

Marshall

Curtis

et al. 2020

Proceedings of the Institution of Mechanical Engineers, Part B:

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Productivity in micro-milling is hindered by premature fracture of tools and difficulty predicting wear. This work builds upon previous investigations into tool wear mechanisms and coatings for micro-mills.The technology readiness level of this work exceeds previous studies by investigating the micro-mills for practical applications and comparing this data. 0.5 mm micro end mills are tested with different coatings on CuZn38, and wear curves produced both in the case of simple straight slot testing and milling of complex parts representing industrial applications. The results show that curves produced using straight slots can be used to predict the behaviour of tools used to machine industrial parts. Due to interrupted cutting, tools used in straight slot tests reach the end of steady state wear after approximately 12 s of cutting as compared with 170 s in continuous milling. Typical cutting forces seen for the tools are in the order of 2–4 N. Catastrophic failure is seen towards the end of tool life for a TiAlN tool with a cutting force of over 30 N seen. For the first time a comparison has been made between fundamental tool wear studies and tool wear observed when producing test pieces representative to micro-industrial parts. This presents a novel perspective on tool wear and facilitates the integrating of existing micro-milling research into industry

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“…It was reported the riblet surfaces provided about 6–10% drag reduction compared to the flat surfaces in the turbulent flow regime (Re > 10 6 ) . Jiao et al employed a CVD fly cutting tool to machine serrate-semicircular riblet features which provided 7% drag reduction in turbulent boundary layer (1.42 × 10 5 ) …”

Section: Introductionmentioning

confidence: 99%

Evaluating Superhydrophobic Surfaces under External Pressures using Quartz Crystal Microbalance

Esmaeilzadeh¹,

Zheng²,

Barry³

et al. 2021

Langmuir

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The performance of hydrophobic surfaces under hydraulic pressures is critical to a wide range of practical applications such as drag reduction of seaboard vessels and design of microfluidic devices. This research focuses on the evaluation of drag reduction and velocity slip of hydrophobic surfaces and coatings under external hydrostatic pressures using an acoustic wave device (i.e., quartz crystal microbalance, QCM). The correlation between the resonant frequency shift of a QCM device and drag reduction of hydrophobic surface coated on the QCM was theoretically developed and the model was validated by comparing the measurement results of the drag reduction of an epoxy-based superhydrophobic coating with those measured by a rheometer. The QCM device was further employed to study the wetting state transition and drag reduction of water on a micropillar array based superhydrophobic surface under elevated hydrostatic pressures. It was found that the transition from Cassie to Wenzel states occurred at a critical hydrostatic pressure which was indicated by a sudden frequency drop of the QCM device. In addition, the effective heights of the meniscus at the liquid/air interface increased with the external pressure before the transition took place. The drag reduction induced by the micropillar surface decreased with the increasing hydrostatic pressures. It was demonstrated that the developed QCM based technology provides a low cost, simple, and reliable tool for evaluating hydrophobic performance of various surfaces under external hydrostatic pressures.

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Investigation on an integrated approach to design and micro fly-cutting of micro-structured riblet surfaces

Cited by 14 publications

References 22 publications

Investigation on an industrial-feasible approach for measurement and assessment of large-sized micro-structured surfaces based on grayscale matching

Investigation on an industrial-feasible approach for measurement and assessment of large-sized micro-structured surfaces based on grayscale matching

Applying experimental micro-tool wear measurement techniques to industrial environments

Evaluating Superhydrophobic Surfaces under External Pressures using Quartz Crystal Microbalance

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