Selection of Methods of Surface Texture Characterisation for Reduction of the Frequency-Based Errors in the Measurement and Data Analysis Processes

Sensors, Год журнала: 2022, Номер 22(3), С. 791 - 791

Опубликована: Янв. 20, 2022

Processes of surface texture characterisation can be roughly divided into measurement issues and analysis the results obtained. Both actions fraught with various errors, some which analysed frequency performance. In this paper, types topographies were studied, e.g., cylinder liners after plateau-honing process, plateau-honed additionally burnished dimples sizes (width depth), turned, milled, ground, laser-textured, ceramic, composite general isotropic topographies, respectively. They measured a stylus or via optical (white light interferometry) methods. frequency-based methods, proposed in often applied measuring equipment, power spectral density, autocorrelation function analysis. All methods supported by regular (commonly used) algorithms, filters (robust) Gaussian, median, spline Fast Fourier Transform performance, The main purpose paper was to use techniques for improvement detection reduction processes regarding influence high-frequency noise on measurements. It found that selected textures, profile (2D) gave more confidential than areal (3D) characterisation. therefore suggested detect remove frequency-defined errors multi-threaded performance application. end, guidance how following both (high-frequency noise) data required.

Язык: Английский

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Approaches for Preventing Tool Wear in Sheet Metal Forming Processes

Machines, Год журнала: 2023, Номер 11(6), С. 616 - 616

Опубликована: Июнь 3, 2023

Sheet metal forming processes, the purpose of which is to give shaped material appropriate mechanical, dimensional and shape properties, are characterised by different values unit pressures lubrication conditions. Increasing efficiency tool work increasing their durability, reliability still one main indicators production efficiency. Tool wear in technologies significantly differs from character other methods metalworking, such as machining. This article presents characteristics mechanisms used sheet forming. Possibilities durability tools applying coatings produced laser techniques, chemical vapour deposition also discussed. Great emphasis placed on self-lubricating functional materials coatings. Current trends lubricants forming, including texturing, presented.

Язык: Английский

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Evaluation of high-frequency roughness measurement errors for composite and ceramic surfaces after machining

Journal of Manufacturing Processes, Год журнала: 2024, Номер 121, С. 150 - 171

Опубликована: Май 20, 2024

Precise characterisation of surface topography is the greatest importance since many factors directly affect accuracy whole measurement process. In this paper, variety topographies from machined composite and ceramic workpieces was studied with a special emphasis on results. Surfaces were subjected to ground diamond, honing milling processes. Measurement results analysed in terms application procedure for removal high-frequency noise. Bandwidth characteristics supported by studies autocorrelation power spectral functions. It found, that examination noisy data, especially its isotropic properties, crucial enhancement noise-removal methods. The proposed validated through direction profile characterisation. spline filtering technique 7.5 μm cut-off encouraged against other generally used techniques reduction noise considering study based spectral, methodology comparing it averaged 3 time repeated measurements surfaces after machining. main advantage proposal reducing data processing due fast easy-to-implement usage general analysis functions, available commercial software measuring instrument.

Язык: Английский

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

Materials, Год журнала: 2023, Номер 16(5), С. 1865 - 1865

Опубликована: Фев. 24, 2023

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

Язык: Английский

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Roughness evaluation of turned composite surfaces by analysis of the shape of autocorrelation function

Measurement, Год журнала: 2023, Номер 222, С. 113640 - 113640

Опубликована: Сен. 30, 2023

In this paper, the application of an Autocorrelation Function for characterisation surface topography was validated. The roughness evaluation turned composite surfaces supported by sophisticated studies properties, considering especially shape function. Details were measured with optical method. selection procedures carried out based on both profile and areal analyses. Moreover, various types regular analysis methods, proposed in commercial software, like Gaussian regression robust functions, median de-noising, isotropic Spline, fast Fourier transform filters, parameters from ISO 25178 standards. It found that many common techniques, commonly used spectral analysis, texture direction, studies. hard thresholding technique to be valuable comprehensive noise-suppression analysis.

Язык: Английский

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Laser-textured cross-hatched surface topography analysis with evaluation of high-frequency measurement noise

Measurement, Год журнала: 2024, Номер 235, С. 114988 - 114988

Опубликована: Май 23, 2024

The precision of surface roughness determination using ISO 25178 parameters relies on various factors that directly impact the measurement process. In industry applications, contactless reduces data collection time. However, it introduces several potential errors, including those stemming from environment. One main types errors encountered during topography analysis is noise, which arises different external disturbances. High-frequency noise particularly studied as a result vibration. present study, laser-texture cross-hatched topographies were analysed results obtained white light interference measurements. Measurement was defined based noisy data, also called surface, filter decomposition methods. This separation technique supported with power spectral analysis, autocorrelation function applications and texture direction characterisation. It suggested to conduct comprehensive study enhance understanding texturing direction. Various filtration techniques studied, namely robust Gaussian, spline, fast Fourier transform morphological closing-opening filters. proposed procedure validated against variations in values parameters. Validating approach, noise-sensitive compared same but received by averaging three repeated measurements, international standards. advantage method standards reducing time when must be averaged. conclusion, for high-frequency introduced through application procedure.

Язык: Английский

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The Effect of Surface Topography Feature Size Density and Distribution on the Results of a Data Processing and Parameters Calculation with a Comparison of Regular Methods

Materials, Год журнала: 2021, Номер 14(15), С. 4077 - 4077

Опубликована: Июль 22, 2021

In this paper, the influence of occurrence surface texture features on values topography parameters calculated after application various data processing techniques was presented. Different types topographies were considered, as follows: cylinder liners, some with additionally burnished dimples, turned, ground, milled, laser-textured, composite, ceramic, or isotropic in general. The effects feature size areal form removal, noise suppressions, end-effect reducing measurements studied. variations ISO 25178 standard taken into consideration detail. It assumed that sizes, distributions, and densities have a substantial impact applications regular (commonly used) algorithms procedures, defined basic operations, provided for raw obtained directly from measurement process. end, practical receiving relevant proposed.

Язык: Английский

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Fracture surface topography measurements analysis of low-alloyed corrosion resistant steel after bending-torsion fatigue tests

Precision Engineering, Год журнала: 2024, Номер 89, С. 296 - 316

Опубликована: Июль 6, 2024

Язык: Английский

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Suppression of the High-Frequency Errors in Surface Topography Measurements Based on Comparison of Various Spline Filtering Methods

Materials, Год журнала: 2021, Номер 14(17), С. 5096 - 5096

Опубликована: Сен. 6, 2021

The metrology of so-called "engineering surfaces" is burdened with a substantial risk both measurement and data analysis errors. One the most encouraging issues definition frequency-defined This paper proposes new method for suppression reduction high-frequency errors from surface topography data. technique based on comparisons alternative types noise detection procedures examination profile (2D) or (3D) details measured modelled In this paper, results applying various spline filters used suppressions were compared regard to several kinds textures. For purpose article, influence proposed approaches values parameters (from ISO 25178 areal 4287 standards) was also performed. effect distribution some features texture closely studied. Therefore, Power Spectral Density, Autocorrelation Function, novel modifications studies shape an Function presented.

Язык: Английский

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Thresholding Methods for Reduction in Data Processing Errors in the Laser-Textured Surface Topography Measurements

Materials, Год журнала: 2022, Номер 15(15), С. 5137 - 5137

Опубликована: Июль 24, 2022

There are many factors influencing the accuracy of surface topography measurement results: one them is vibrations caused by high-frequency noise occurrence. It extremely difficult to extract results defined as from real measured data, especially application various methods requiring skilled users and, additionally, improper use software may cause errors in data processing. Accordingly, thresholding for minimization raw processing were proposed and compared with commonly used (available commercial software) techniques. Applied procedures parameters (from ISO 25178 standard) calculation after removal reduction, respectively, (S-filter). Methods applied analysis laser-textured surfaces a comparison regular methods, previously measuring equipment. was found that algorithms can be suitable when selected provided. Moreover, both process reduced support procedures. From applied, (regular Gaussian regression filter, robust spline filter fast Fourier transform filter), most encouraging obtained reduction details supported approach.

Язык: Английский

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