Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "surface texture" wg kryterium: Temat

  Lista filtrów
Wyrównaj
Wyświetlanie 1-15 z 62
Tytuł:
Influence of surface textures produced by finishing operations on their functional properties
Autorzy:
Grzesik, W.
Powiązania:
https://bibliotekanauki.pl/articles/99816.pdf
Data publikacji:
2016
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
machining
surface texture
functional performance
Opis:
This literature survey highlights the possible influences of surface roughness parameters on functional properties of surfaces produced by different finishing operations. The prediction of such functional properties as fatigue, sealing capacity, adhesion, friction, wear and corrosion resistance based on five groups of spatial (S) roughness parameters is overviewed. In contrast, traditional approach based on 2D roughness parameters is provided. Some real 3D surface topographies produced with desired functional properties by finishing cutting and abrasive operations are characterized. This survey confirms the vital role of machined surfaces in the functionality of machine components.
Źródło:
Journal of Machine Engineering; 2016, 16, 1; 15-23
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of grinding conditions on the topographic characteristic of machined surfaces
Autorzy:
Żak, K.
Powiązania:
https://bibliotekanauki.pl/articles/100111.pdf
Data publikacji:
2014
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
surface texture
surface roughness
hard machining
grinding
Opis:
This paper compares the ability of grinding processes to enhance functional properties of the surface textures produced. The main objective of such a comparison is to facilitate the decision about precision grinding operations. The experimental study performed includes two grinding operations using electro-corundum Al2O3 and CBN wheels. For this purpose, the topographic features of ground surfaces with the Sa roughness parameter of about 0.2?m were compared. Apart from the set of 3D roughness parameters, the frequency, fractal, wavelet and motif characteristics were analyzed.
Źródło:
Journal of Machine Engineering; 2014, 14, 2; 47-56
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Assessment of the texture and topographic features of a surface produced by the 3D printing process
Autorzy:
Musiał, W.
Haracewiat, J.
Kozłowicz, K.
Powiązania:
https://bibliotekanauki.pl/articles/132118.pdf
Data publikacji:
2015
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
3D printing
surface texture
profilometer
Opis:
Presented in the paper is a study of the surface texture as produced by the Up3D printer from Solveere with the printing parameters varying in relation to those of the surface under survey. Used for the measurements was optical profilometer Nanovea PS50 operating to the chromatic aberration principle. The results were used for estimation of the 3D printer output data and also for consideration whether some parts or items as released by 3D printers were practicable for use in a production process.
Źródło:
Advanced Technologies in Mechanics; 2015, 2, no. 3 (4); 35-45
2392-0327
Pojawia się w:
Advanced Technologies in Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characteristics of Surface Topography after Rolling Burnishing of EM AW-AlCu4MgSi(A) Aluminium Alloy
Autorzy:
Kalisz, J.
Zak, K.
Grzesik, W.
Czechowski, K.
Powiązania:
https://bibliotekanauki.pl/articles/99505.pdf
Data publikacji:
2015
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
aluminium
milling
burnishing
surface texture
functional properties
Opis:
This paper characterizes surface topographies produced by medium milling of EM AW-AlCu4MgSi(A) aluminium alloy in hardened state T451 using a ball-end cutter of 8 mm diameter and subsequent finish by roller burnishing using a Si3N4 nitride ceramic ball of 8mm diameter. It was revealed that ball burnishing operations performed on curvilinear milled surfaces allow obtaining the machined surfaces of high quality and exceptional smoothness with different textures and, as a result, ensuring demanded functional properties such as fatigue strength, bearing properties and contact strength [1]. It was experimentally verified that precision ball burnishing performed with a low stepover of 0.04mm produced a very smooth with the Sa roughness of about 0.02 µm characteristic for polishing.
Źródło:
Journal of Machine Engineering; 2015, 15, 1; 71-80
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface texture analysis after ball end milling with various surface inclination of hardened steel
Autorzy:
Wojciechowski, S.
Twardowski, P.
Wieczorowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/221105.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
surface texture
ball end milling
hardened steel
Opis:
In this paper, an analysis of various factors affecting machined surface texture is presented. The investigation was focused on ball end mill inclination against the work piece (defined by surface inclination angle α. Surface roughness was investigated in a 3D array, and measurements were conducted parallel to the feed motion direction. The analysis of machined surface irregularities as a function of frequency (wavelength λ), on the basis of the Power Density Spectrum - PDS was also carried out. This kind of analysis is aimed at valuation of primary factors influencing surface roughness generation as well as its randomness. Subsequently, a surface roughness model including cutter displacements was developed. It was found that plain cutting with ball end mill (surface inclination angle α = 0°) is unfavorable from the point of view of surface roughness, because in cutter’s axis the cutting speed νc ≈ 0 m/min. This means that a cutting process does not occur, whereas on the machined surface some characteristics marks can be found. These marks do not appear in case of α ≠ 0°, because the cutting speed νc ≠ 0 on the full length of the active cutting edge and as a result, the machined surface texture is more homogenous. Surface roughness parameters determined on the basis of the model including cutter displacements are closer to experimental data for cases with inclination angles α ≠ 0°, in comparison with those determined for plain cutting (α = 0°). It is probably caused by higher contribution in surface irregularities generation of plastic and elastic deformations cumulated near the cutter’s free end than kinematic and geometric parameters, as well as cutter displacements.
Źródło:
Metrology and Measurement Systems; 2014, 21, 1; 145-156
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A low-cost, simple optical setup for a fast scatterometry surface roughness measurements with nanometric precision
Autorzy:
Kucharski, D.
Zdunek, H.
Powiązania:
https://bibliotekanauki.pl/articles/200883.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
scatterometry
surface texture
optical measurement systems
surface metrology
surface roughness
Opis:
We present a prototype of a simple, low-cost setup for a fast scatterometric surface texture measurements. We used a total integrated scatter method (TIS) with a semiconductor laser (λ = 638 nm) and a Si photodiode. Using our setup, we estimated the roughness parameters Rq for two reference surfaces (Al mirrors with flatness λ/10) and seven equal steel plates to compare. The setup is easily adaptable for a fast, preliminary manufacturing quality control. We show is possible to construct a low-cost measurement system with nanometric precision.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 3; 485-490
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of surface textures produced by finish cutting, abrasive and burnishing operations in terms of their functional properties
Autorzy:
Grzesik, W.
Żak, K.
Powiązania:
https://bibliotekanauki.pl/articles/100216.pdf
Data publikacji:
2013
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
hard turning
burnishing
superfinish
surface texture
functional properties
Opis:
The purpose of this research is to asses the functionality of surfaces produced by CBN hard turning, ball burnishing and superfinishing for improving the surface finish of parts made of high-strength, low alloy 41Cr4 steel with a hardness of about 57 HRC. Machined surfaces were characterized usin 3D scanning techniques. A set of 3D roughness parameters and real 3D surface topographies produced by the above-mentioned machining operations were estimated and determined.This investigation confirms that sequential processes based on initial CBN hard turning allows producing surfaces with better service properties.The main conclusion is that this sequential technology can partly eliminate grinding operations when hard machining is not enough to produce the desired surface finish.
Źródło:
Journal of Machine Engineering; 2013, 13, 2; 46-58
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Areal field and fractal based characterization of hard surfaces produced by different machining operations
Autorzy:
Zak, K.
Powiązania:
https://bibliotekanauki.pl/articles/99745.pdf
Data publikacji:
2016
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
hard machining
grinding
ball burnishing
surface texture
fractals
Opis:
This literature survey highlights the possible influences of surface roughness parameters on functional properties of surfaces produced by different finishing operations. The prediction of such functional properties as fatigue, sealing capacity, adhesion, friction, wear and corrosion resistance based on five groups of spatial (S) roughness parameters is overviewed. In contrast, traditional approach based on 2D roughness parameters is provided. Some real 3D surface topographies produced with desired functional properties by finishing cutting and abrasive operations are characterized. This survey confirms the vital role of machined surfaces in the functionality of machine components.
Źródło:
Journal of Machine Engineering; 2016, 16, 1; 24-32
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of results of surface texture measurement obtained with stylus methods and optical methods
Autorzy:
Pawlus, P.
Reizer, R.
Wieczorowski, M.
Powiązania:
https://bibliotekanauki.pl/articles/221501.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
surface texture
stylus
white light interferometer
confocal method
Opis:
The results of surface texture measurements obtained with the stylus equipment, white light interferometer and confocal profilometer of the same samples were compared. Machined isotropic and anisotropic surfaces, of symmetric and asymmetric ordinate distribution were measured. Forms were removed using polynomials. Sampling intervals and measuring areas during computations of parameters were the same. Discrepancies between the results obtained with various methods were observed and discussed. It was found that errors of surface texture measurement with the optical methods depend on the type of surface topography.
Źródło:
Metrology and Measurement Systems; 2018, 25, 3; 589-602
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
An assessment of applicability of the two-dimensional wavelet transform to assess the minimum chip thickness determination accuracy
Autorzy:
Gogolewski, Damian
Makieła, Włodzimierz
Nowakowski, Łukasz
Powiązania:
https://bibliotekanauki.pl/articles/1849153.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
wavelet analysis
face milling
minimum chip thickness
surface texture
Opis:
The objective of the study was to assess the potential use of optical measuring instruments to determine the minimum chip thickness in face milling. Images of scanned surfaces were analyzed using mother wavelets. Filtration of optical signals helped identify the characteristic zones observed on the workpiece surface at the beginning of the cutting process. The measurement data were analyzed statistically. The results were then used to estimate how accurate each measuring system was to determine the minimum uncut chip thickness. Also, experimental verification was carried out for each mother wavelet to assess their suitability for analyzing surface images.
Źródło:
Metrology and Measurement Systems; 2020, 27, 4; 659-672
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Properties of coatings used in biotribological systems
Autorzy:
Piotrowska, Katarzyna
Madej, Monika
Niemczewska-Wójcik, Magdalena
Powiązania:
https://bibliotekanauki.pl/articles/2232171.pdf
Data publikacji:
2022
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Polskie Towarzystwo Biominerałów
Tematy:
PACVD technique
titanium alloys
surface texture
hardness
friction
wear
Opis:
The properties of diamond-like carbon coatings (DLC) obtained via plasma-assisted chemical vapor deposition (PACVD) on the Ti13Nb13Zr alloy were evaluated. For this purpose, measurements of the thickness, the surface geometric structure, adhesion, as well as tribological tests of the tested coatings were performed. The thickness of the deposited coating was measured using the spherical grinding method. Surface geometry measurements before and after tribological tests were performed with a Leica DCM8 optical profilometer. A scratch test was performed to measure the adhesion of the coating. An indenter with a Rockwell geometry was used during the adhesion tests. The test offered the possibility of real-time recording of the coefficient of friction and acoustic emission. In addition, it was also possible to measure the geometrical parameters of a scratch and to carry out a microscopic analysis of a scratch during the coating damage. The test was carried out on an Anton Paar MCT3 instrument. The model tribological tests were carried out in rotary motion under technically dry friction conditions and friction conditions with lubrication with the Ringer’s solution and an artificial saliva solution. The tests were carried out using an Anton Paar TRB3 tribometer. The scratch test proved that the deposited layer was characterized by good adhesion. Based on the results of the tribological tests, it was found that the lower resistance to motion and wear was obtained for the DLC coatings on the Ti13Nb13Zr substrate. The results of the tests performed on the DLC coatings indicate the possibility of their application in biotribological systems.
Źródło:
Engineering of Biomaterials; 2022, 25, 164; 25--31
1429-7248
Pojawia się w:
Engineering of Biomaterials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparisons of envelope morphological filtering methods and various regular algorithms for surface texture analysis
Autorzy:
Podulka, Przemysław
Powiązania:
https://bibliotekanauki.pl/articles/220525.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
surface texture
surface topography measurement
envelope filter
morphological filtering
measurement errors
Opis:
In this paper both envelope approach and morphological filters for characterisation of surface textures were proposed, applied and thoroughly examined. Obtained results were compared with those received after appliance of commonly-used algorithms. The effect of appliance of proposed procedures on surface topography parameters (from ISO 25178 standard) was taken into consideration. The following types of surface textures were assessed: two-process plateau-honed cylinder liners, plateau-honed cylinder liners with additionally burnished dimples, turned piston skirts, grinded and/or isotropic topographies. It was assumed that envelope characteristics (envelope filtration) can provide results useful for assessments of deep and/or wide oil-reservoirs especially when they are edge located. Moreover, some near-valley areas of surface texture details can be less distorted when envelope filtering is accomplished. It was also found that closing and/or opening envelope filtration can be valuable for reduction of some surface topography measurement errors.
Źródło:
Metrology and Measurement Systems; 2020, 27, 2; 243-263
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multiscale assessment of additively manufactured free-form surfaces
Autorzy:
Gogolewski, Damian
Powiązania:
https://bibliotekanauki.pl/articles/2203371.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
free-form
wavelet transform
multiscale analysis
surface texture
additive manufacturing
Opis:
The article reviews the results of experimental tests assessing the impact of process parameters of additive manufacturing technologies on the geometric structure of free-form surfaces. The tests covered surfaces manufactured with the Selective Laser Melting additive technology, using titanium-powder-based material (Ti6Al4V) and Selective Laser Sintering from polyamide PA2200. The evaluation of the resulting surfaces was conducted employing modern multiscale analysis, i.e., wavelet transformation. Comparative studies using selected forms of the mother wavelet enabled determining the character of irregularities, size of morphological features and the indications of manufacturing process errors. The tests provide guidelines and allow to better understand the potential in manufacturing elements with complex, irregular shapes.
Źródło:
Metrology and Measurement Systems; 2023, 30, 1; 157--168
0860-8229
Pojawia się w:
Metrology and Measurement Systems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Wielomodalne podejście do opisu struktury geometrycznej powierzchni
Multi-modal approach to description of surface texture
Autorzy:
Graboń, W.
Powiązania:
https://bibliotekanauki.pl/articles/196102.pdf
Data publikacji:
2018
Wydawca:
Politechnika Rzeszowska im. Ignacego Łukasiewicza. Oficyna Wydawnicza
Tematy:
struktura geometryczna powierzchni
model wielomodalny
surface texture
multi-modal model
Opis:
W artykule przedstawiono nowe wielomodalne podejście do opisu struktury geometrycznej powierzchni. Dokonano analizy istniejących w tym zakresie rozwiązań, zwracając szczególną uwagę na zalety i wady każdego z nich. Przedstawiono także przykłady wykorzystania nowego modelu do analizy powierzchni modelowanych komputerowo. Przykłady te dowodzą, że model sprawdza się dla powierzchni zawierających tekstury składowe zarówno o okresowym, jak i losowym charakterze rozkładu rzędnych. Naznaczono kierunki dalszych badań i możliwości wykorzystania wprowadzonego modelu.
This paper presents a new multi-modal approach to the description of the surface texture. An analysis of the existing in these scope solutions was done, paying special attention to the advantages and disadvantages of each of them. The examples of the use of a new model for the analysis of computer-modelled surface texture were presented. These examples prove that the model works well for surfaces containing textures with periodic and random nature of the distribution of ordinates. The directions of further research and the possibilities of using the introduced model were specified.
Źródło:
Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika; 2018, z. 90 [298], 1; 29-46
0209-2689
2300-5211
Pojawia się w:
Zeszyty Naukowe Politechniki Rzeszowskiej. Mechanika
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The morphology of fossil pebbles as a tool for determining their transport processes (Koźmin South lignite open-cast pit, central Poland)
Autorzy:
Widera, M.
Powiązania:
https://bibliotekanauki.pl/articles/191884.pdf
Data publikacji:
2010
Wydawca:
Polskie Towarzystwo Geologiczne
Tematy:
pebble morphology
shape
surface texture
sediment provenance
transport processes
Central Poland
Opis:
The Koźmin South lignite open-cast pit is the southernmost exposure of Palaeogene (lower Oligocene) deposits in central Poland. This study is focused on Palaeogene pebbles of the so-called Koźmin Gravels, rede- posited in the Neogene sands. These pebbles are not known from the adjacent territory of central Poland and they vary in petrographic composition, shape and surface texture. The classification of the pebble-size particle form is determined as DI/DL (elongation ratio) and DS/DI (flatness ratio). A great number of pebbles are disc-shaped (oblate-shaped) and blade-shaped or they can be classified as platy, bladed and very bladed pebbles. The oblate-prolate index (OP) is less than -2 for 45% of the particles (typical of beach pebbles), the mean sphericity (yp) is 0.56 (typical of beach pebbles), and the mean roundness (RWt) is 0.73 (typical of beach pebbles). The data obtained from SEM analysis of quartz pebble surface micromorphology are characteristic of high mechanical energy of the littoral environment. The surface of some pebbles is excellently polished with v-shaped indentations and grooves. The average composition of the heavy mineral fraction occurring with these pebbles is marked by the predominance of zircon (exceeding 70%). All the above-mentioned data, in the light of extensive literature, indicate that more morphological features of the analysed pebbles have been inherited from the littoral/beach environment. Moreover, a detailed petrographic study was very useful for determining the prove-nance of these pebbles. The most characteristic rocks are greyish-blue quartzes. They are known only from the Sudetes Mts., situated on the NE slope of the Bohemian Massif. Thus, the rock fragments were transported at least 300 km by rivers from the Sudetes to the littoral/beach zone of the Palaeogene sea. Then, the residually-marine beach pebbles were redeposited into the Neogene debris flow and/or fluvial deposits. The present-day area of the Koźmin South lignite open-cast pit was tectonically active at that time.
Źródło:
Annales Societatis Geologorum Poloniae; 2010, 80, No 3; 315-325
0208-9068
Pojawia się w:
Annales Societatis Geologorum Poloniae
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 62

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies