Roughness characterization and formation mechanism of abrasive air jet micromachining surface studied by power spectral density

Li, Quanlai; Deng, Yafeng; Li, Jian; Shi, Wentian

doi:10.1016/j.jmapro.2020.07.039

Cited by 20 publications

(3 citation statements)

References 26 publications

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“…Li and Deng et al [ 24 ] described that the number of particles colliding on the target surface decreases as the nozzle passing speed increases in AAJ micromachining. Furthermore, according to Li and Yeoh et al [ 25 ], the change in the particle velocity in the radial direction of the nozzle increases as the axial distance from the nozzle outlet increases.…”

Section: Resultsmentioning

confidence: 99%

Reduction of Friction Using Microabrasive Air Jet Machining

et al. 2023

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In this paper, we introduce a microabrasive air jet (micro-AAJ) machining system and describe machining results obtained while using it. Our research activities have focused on the development of micro-AAJ machining methods for friction reduction without requiring a mask. Through this study, we want to show that such processing is possible without a mask when using the AAJ method. In this paper, a micro-AAJ machining system is introduced, and the processing results are described. By comparing the friction coefficient of texturing under various conditions, the relative relationship between the surface shape and the friction coefficient can be identified. We investigated the effect of the relationship between rotating velocity, traverse speed, density of the patterned area and injection pressure on friction. The friction is decreased with a low traverse speed and high-density patterned area under high-speed driving conditions, as verified by experiments using a friction test system.

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Section: Resultsmentioning

confidence: 99%

Reduction of Friction Using Microabrasive Air Jet Machining

et al. 2023

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“…The vertical and lateral information of the surface profile can also be obtained with PSD applications [95]. Combining PSD with other methods, the profile roughness can be characterized by the PSD curve first and then by formation mechanisms of different frequency regions analyzed in more detail [96]. The PSD distribution can be used to explain the influence of tool feed, spindle speed, and, respectively, material-induced vibrations on surface roughness [97].…”

Section: Applied Methodsmentioning

confidence: 99%

Reduction in Errors in Roughness Evaluation with an Accurate Definition of the S-L Surface

et al. 2023

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Characterization of surface topography, roughly divided into measurement and data analysis, can be valuable in the process of validation of the tribological performance of machined parts. Surface topography, especially the roughness, can respond straightly to the machining process and, in some cases, is defined as a fingerprint of the manufacturing. When considering the high precision of surface topography studies, the definition of both S-surface and L-surface can drive many errors that influence the analysis of the accuracy of the manufacturing process. Even if precise measuring equipment (device and method) is provided but received data are processed erroneously, the precision is still lost. From that matter, the precise definition of the S-L surface can be valuable in the roughness evaluation allowing a reduction in the rejection of properly made parts. In this paper, it was proposed how to select an appropriate procedure for the removal of the L- and S- components from the raw measured data. Various types of surface topographies were considered, e.g., plateau-honed (some with burnished oil pockets), turned, milled, ground, laser-textured, ceramic, composite, and, generally, isotropic. They were measured with different (stylus and optical) methods, respectively, and parameters from the ISO 25178 standard were also taken into consideration. It was found that commonly used and available commercial software methods can be valuable and especially helpful in the precise definition of the S-L surface; respectively, its usage requires an appropriate response (knowledge) from the users.

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“…The spikes in the curve indicate that there are high-frequency harmonic components due to the random array of media indentation by polishing. The roughness shown in the frequencies play dominant roles in the surface roughness where it is associated with cutting mechanism [27].…”

Section: Summary Of Fft and Psd Analysesmentioning

confidence: 99%

Mechanical polishing of fan blade by a prototype random-orbital tool

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Roughness characterization and formation mechanism of abrasive air jet micromachining surface studied by power spectral density

Cited by 20 publications

References 26 publications

Reduction of Friction Using Microabrasive Air Jet Machining

Reduction of Friction Using Microabrasive Air Jet Machining

Reduction in Errors in Roughness Evaluation with an Accurate Definition of the S-L Surface

Mechanical polishing of fan blade by a prototype random-orbital tool

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