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Tytuł:
A review on machinability in the milling processes
Autorzy:
Demirpolat, Havva
Kuntoğlu, Mustafa
Binali, Rüstem
Powiązania:
https://bibliotekanauki.pl/articles/34656168.pdf
Data publikacji:
2023
Wydawca:
Politechnika Opolska
Tematy:
milling process
cutting force
surface roughness
tool wear
Opis:
This review paper focuses on the up-to-date machinability characteristics of milling processes such as cutting forces, surface roughness and tool wear and their impacts on the cutting mechanism. The methodology pur-sued in this paper is to analyze the previous research articles published between 2019–2022 classifying them into the subcategoriesthat usemill-ing operation as manufacturing strategy. As known, milling is one of the most used machining processes in industry and often applied for academic studiesforawide range of materials. Therefore, used sensor systems, main aim and the preferred methodology were summarized in the context of this paper. Seemingly, a great number of machinability papers have been published recently which focuses on the several types of engineering ma-terials and utilized various types of sensor system to improve the surface roughness and tool life. In addition, the investigation showed that optimi-zation approaches have been applied broadly to detect the best machining conditions. Also, it was observed that several modeling approaches such as finite element analysis is a good alternative to analyze the process.
Źródło:
Sustainable Production, Instrumentation and Engineering Sciences; 2023, 1, 1; 27-36
2956-6711
Pojawia się w:
Sustainable Production, Instrumentation and Engineering Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Abrasive Wear Mechanisms of S235JR, S355J2, C45, AISI 304, and Hardox 500 Steels Tested Using Garnet, Corundum and Carborundum Abrasives
Autorzy:
Szala, Mirosław
Szafran, Michał
Matijošius, Jonas
Drozd, Kazimierz
Powiązania:
https://bibliotekanauki.pl/articles/2201922.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
abrasion
wear resistance
dry sand-rubber wheel test
tribology
steel
wear mechanism
roughness analysis
failure analysis
Opis:
Wear resistance is one of the main indicators of the reliability of machine parts. The selection of wear-resistant material should consider the operational environment and specific types of abrasive material. The steel abrasive wear resistance depends not only on its hardness and microstructure but also on the abrasive material's properties, such as hardness and particle morphology. This work aimed to determine abrasion wear mechanisms of a set of steels, i.e., S235, S355, C45, AISI 304 and Hardox 500, abraded by different types of grit i.e. garnet, corundum and carborundum. The abrasion tests were conducted using T-07 tribometer (rubber wheel method). Wear traces were examined with a scanning electron microscope (SEM), and a contact profilometer. SEM analysis revealed that apart from Hardox 500, ploughing and microfatigue were the dominant wear mechanisms. Microcutting was the main wear mechanism for Hardox 500 tested with carborundum (SiC). The highest mass loss was usually obtained for carborundum. The lowest wear resistance in garnet and carborundum was obtained for the S235JR and S235J2 steels and Hardox 500 tested with corundum. The effect of steel microstructure on the wear mechanism has been confirmed. AISI 304 austenitic steel abraded by carborundum grit, presented outstanding roughness parameters: Ra, Rz, RSm, Rk, Rvk and Rpk than other steels tested with carborundum. Steel hardness affects the morphology of the wear trace reducing the Ra and Rz roughness parameters. The effect of abrasive hardness and grain morphology on abraded surfaces has been stated. Contrary to fine grains of the hardest carborundum, coarse garnet grains caused high roughness parameters (Rk, Rpk and Rvk) determined in wear trace.
Źródło:
Advances in Science and Technology. Research Journal; 2023, 17, 2; 147--160
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysing the impact of cutting force and vibration on surface roughness in external cylindrical grinding of SKH2 steel
Autorzy:
Hoang, Long
Nguyen, Linh Tuan
Powiązania:
https://bibliotekanauki.pl/articles/24084754.pdf
Data publikacji:
2023
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
surface roughness
cutting force
vibration
SKH2 steel
grinding
Opis:
The surface roughness of a part during external cylindrical grinding is directly impacted by cutting force and vibration, which are intermediate parameters. To improve the quality of finished parts, studying and controlling these parameters is essential. In this research, the Taguchi method combined with ANOVA analysis was utilized to analyse the effects of feed rate, cutting depth, and rotational speeds on cutting force and vibration amplitude. The test material used was SKH2 steel, which was heat-treated to a hardness of 60 HRC. The research aimed to investigate the relationship between cutting force, vibration, and surface roughness. The study concludes with an analysis of the influence of cutting force and vibration on the surface roughness of parts during external cylindrical grinding. The results show that as cutting force and vibration increase, the surface roughness of the workpiece in external grinding will also increase, and conversely when cutting force and vibration decrease, the surface roughness will decrease.
Źródło:
Journal of Machine Engineering; 2023, 23, 3; 130--140
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Badanie struktury i właściwości kompozytu ceramicznego na bazie Al2O3
Investigation of the Structure and Properties of a Ceramic Composite Based on Al2O3
Autorzy:
Matyja, Karolina
Bałaga, Zbigniew
Lipiński, Tomasz
Nowacki, Krzysztof
Powiązania:
https://bibliotekanauki.pl/chapters/28328206.pdf
Data publikacji:
2023-12-14
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
chropowatość powierzchni
kompozyt Al2O3/ZrO2
spiekanie
twardość Vickersa
Al2O3/ZrO2 composite
sintering
surface roughness
Vickers hardness
Opis:
W rozdziale przedstawiono wyniki badań kompozytu na bazie Al2O3 z dodatkiem ZrO2. Próbki do badań wytworzono metodą spiekania konwencjonalnego. Zawartość fazy cyrkonowej w kompozycie zmieniała się od 5 do 20% wagowych. Na otrzymanych próbkach wyznaczono gęstość kompozytów, twardość metodą Vickersa, chropowatość powierzchni oraz przeprowadzono obserwacje struktury. Przeprowadzone badania wykazały, że na każdą z badanych właściwości wpływ miał zmieniający się udział fazy cyrkonowej.
The chapter presents the results of research on a composite based on Al2O3 with the addition of ZrO2. Test samples were produced by conventional sin- tering. The content of the zirconium phase in the composite varied from 5 to 20% by weight. Composite density, Vickers hardness, surface roughness and structure observations were determined on the obtained samples. The tests carried out showed that each of the tested properties was influenced by the changing share of the zirconium phase.
Źródło:
Potencjał innowacyjny w inżynierii materiałowej i zarządzaniu produkcją; 56-63
9788371939457
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Cost-effective titania layers over 100 nm thick : effect of annealing on the structural, morphological, and optical properties
Autorzy:
Zięba, Magdalena
Tyszkiewicz, Cuma
Gondek, Ewa
Wojtasik, Katarzyna
Nizioł, Jacek
Dorosz, Dominik
Starzyk, Bartłomiej
Szymczak, Patryk
Pakieła, Wojciech
Rogoziński, Roman
Karasiński, Paweł
Powiązania:
https://bibliotekanauki.pl/articles/27315694.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Stowarzyszenie Elektryków Polskich
Tematy:
sol-gel
titania layer
dip-coating
surface roughness
optical properties
Opis:
Titania dioxide (TiO₂) layers were synthesized via the acid-catalysed sol-gel route using titania (IV) ethoxide, and then annealed at temperatures varying in the range of 150-700 °C. The research concerned the effect of annealing temperature on the structure of TiO₂ layers, their surface morphology, and their optical properties. Further, X-ray diffractometry, and Raman spectroscopy were used to determine the structure of TiO₂ layers. Scanning electron and atomic force microscopy were used to study the surface morphology of TiO₂ layers. Transmittance, reflectance, absorption edge, and optical homogeneity were investigated by UV-VIS spectrophotometry, while the refractive index and thicknesses of TiO₂ layers were measured using a monochromatic ellipsometer. Chromatic dispersion characteristics of the complex refractive index were determined using spectroscopic ellipsometry. Structural studies have shown that the TiO₂ layers annealed at temperatures up to 300 °C are amorphous, while those annealed at temperatures exceeding 300 °C are polycrystalline containing only anatase nanocrystals with sizes increasing from 6 to 20 nm with the increase of the annealing temperature. Investigations on the surface morphology of TiO₂ layers have shown that the surface roughness increases with the increase in annealing temperature. Spectrophotometric investigations have shown that TiO₂ layers are homogeneous and the width of the indirect optical band gap varies with annealing temperature from 3.53 eV to 3.73 eV.
Źródło:
Opto-Electronics Review; 2023, 31, 4; art. no. e147913
1230-3402
Pojawia się w:
Opto-Electronics Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of acidic saliva on monomer leaching and surface roughness of 3D-printed and milled denture-base materials
Wymywanie monomerów wywołane przez kwaśną ślinę oraz chropowatość powierzchni drukowanych w 3D i frezowanych materiałów dentystycznych
Autorzy:
Al-Otaibi, Hanan
Basaqer, Rafal
Almania, Sarah
Alfouzan, Afnan
Al Taweel, Sara
Alshehri, Huda
Labban, Nawaf
Powiązania:
https://bibliotekanauki.pl/articles/24202785.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Tematy:
polymethyl methacrylate
CAD/CAM milling
3D-printed
monomer leaching
surface roughness
salivary pH
polimetakrylan metylu
frezowanie CAD/CAM
druk 3D
wymywanie monomerów
chropowatość powierzchni
pH śliny
Opis:
The study evaluated the effect of different acidic salivary pH values on monomer leaching and surface roughness of conventional and CAD/CAM processed (milled and 3D-printed) denture base materials. High-performance liquid chromatography was used to determine the quantity of residual methyl methacrylate monomer leaching after 30 days of immersion in acidic saliva. The surface roughness (Ra) before and after incubation was recorded using a non-contact optical profilometer. The monomer leaching and the surface roughness of the tested materials depended on the pH value of the saliva. The conventional denture framework material exhibited the highest and lowest leaching rates at pH=4.5 and pH=3.5, respectively, regardless of the treatment method. Among the CAD/CAM processed materials, the 3D-printed material showed the highest and lowest leaching at pH=5.5 and pH=3.5, respectively. Regardless of the pH, roughness after incubation was the lowest for conventional materials, and the highest for 3D printing.
W pracy oceniono wpływ pH śliny na wymywanie monomerów i chropowatość powierzchni konwencjonalnych oraz wytworzonych metodą CAD/CAM (frezowanych i wydrukowanych w 3D) materiałów na podbudowy protez dentystycznych. Metodą wysokosprawnej chromatografii cieczowej oznaczono ilość wymytego monomeru (metakrylan metylu) po 30-dniowym zanurzaniu w kwaśnej ślinie. Chropowatość powierzchni (Ra) przed i po inkubacji rejestrowano za pomocą bezkontaktowego profilometru optycznego. Wymywanie monomerów oraz chropowatość powierzchni badanych materiałów zależały od wartości pH śliny. Konwencjonalny materiał na podbudowę protezy wykazywał największy i najmniejszy stopień wymywania odpowiednio przy pH=4,5 i pH=3,5, niezależnie od sposobu obróbki. Spośród materiałów poddanych obróbce CAD/CAM, materiał drukowany wykazał największe i najmniejsze wymywanie przy odpowiednio pH=5,5 i pH=3,5. Niezależnie od pH, chropowatość po inkubacji była najmniejsza w przypadku materiałów konwencjonalnych, a największa otrzymanych metodą druku 3D.
Źródło:
Polimery; 2023, 68, 3; 149--156
0032-2725
Pojawia się w:
Polimery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of EDM on the Chemical Composition and Microstructure of the Surface Layer of Alnico Alloys
Autorzy:
Bańkowski, Damian
Młynarczyk, Piotr
Szwed, Bartłomiej
Powiązania:
https://bibliotekanauki.pl/articles/27314158.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
electrical discharge machining
EDM
Alnico
chemical composition
roughness
surface quality
microstructure
obróbka elektroerozyjna
skład chemiczny
chropowatość
jakość powierzchni
mikrostruktura
Opis:
This article deals with the effects of electrical discharge machining (EDM) on the chemical composition and microstructure of cast Alnico alloys, i.e., iron-based alloys composed of aluminum, nickel and cobalt. The experiments focused on determining the chemical composition of the surface layer before and after the EDM process. The microstructure of the material altered by the EDM was also examined. The study included measurement of the thickness of the white layer characteristic of EDM. It is evident that low values of the surface roughness parameters can be obtained by correctly selecting the EDM process parameters. The average surface roughness reported in the experiments was 1 μm. The surface roughness measurements were conducted with a Talysurf CCI lite non-contact profiler. The metrological results also indicate that lower surface roughness can be obtained at small discharge energies.
Źródło:
Archives of Foundry Engineering; 2023, 23, 2; 106--111
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effects of propeller fouling on the hydrodynamic performance of a marine propeller
Autorzy:
Zinati, Ali
Ketabdari, Mohammad Javad
Zeraatgar, Hamid
Powiązania:
https://bibliotekanauki.pl/articles/34602878.pdf
Data publikacji:
2023
Wydawca:
Politechnika Gdańska. Wydział Inżynierii Mechanicznej i Okrętownictwa
Tematy:
propeller performances
blade roughness
frictional resistance
CFD simulation
fouling
Opis:
Propeller performance is typically considered under clean conditions, despite the fact that fouling is an inevitable phenomenon for propellers. The main objective of this study is to investigate the effects of roughness due to fouling on the performance of a propeller using a CFD simulation in conjunction with the roughness function model. A simulation of a clean propeller is verified for a five-blade propeller model using existing experimental results. A roughness function model is then suggested based on existing measured roughness data. The simulations are extended for the same propeller under varying severities of roughness. Initially, it is concluded that KT and ηo gradually decrease with increasing fouling roughness, while KQ increases, compared to smooth propeller. For instance, at J=1.2 for medium calcareous fouling, KT is reduced by about 26%, KQ increases by about 7.0%, and ηo decreases by 30.9%. In addition, for the rough propeller, the extra power required is defined as the specific sea margin (SSM) to compensate for the power loss. A slight roughness causes a large decrease in ηo. A propeller painted with foul-release paint and an unpainted propeller are found to require 2.7% SSM and 57.8% SSM over four years of service, respectively. Finally, the use of foul-release paints for propeller painting is strongly advised.
Źródło:
Polish Maritime Research; 2023, 4; 61-73
1233-2585
Pojawia się w:
Polish Maritime Research
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Geometrical Accuracy of Threaded Elements Manufacture by 3D Printing Process
Autorzy:
Budzik, Grzegorz
Dziubek, Tomasz
Kawalec, Andrzej
Turek, Paweł
Bazan, Anna
Dębski, Mariusz
Józwik, Jerzy
Poliński, Przemysław
Kiełbicki, Mateusz
Kochmański, Łukasz
Oleksy, Mariusz
Cebulski, Józef
Paszkiewicz, Andrzej
Kuric, Ivan
Powiązania:
https://bibliotekanauki.pl/articles/2201896.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
additive manufacturing
surface roughness
computer measurement system
threaded elements
Opis:
Additive processes allow for almost any manufacturing of screw-threaded joint elements. However, this requires knowledge of the geometrical relationships of a threaded itself and the strength of materials from which the screw-threaded joint is made. Thanks to the development of research models and conducting tests related to dimensional accuracy and surface roughness, it was possible to test the models made by MEX process of ABS-M30, PLA, ABS, PETG materials, and PolyJet process from RGD720 polymer material.In the case of measurements carried out on the MarSurf XC20 system, the internal and external thread profile was obtained.Measurements of the surface roughness of the printed models were made using the Taylor Hobson TalyScan 150 profilometer. Based on the obtained surface, following the ISO 25178-2 standard, selected parameters were determined.
Źródło:
Advances in Science and Technology. Research Journal; 2023, 17, 1; 35--45
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Heat transfer and friction characteristics in three-side solar air heaters with the combination of multi-v and transverse wire roughness
Autorzy:
Kumar, Dhananjay
Powiązania:
https://bibliotekanauki.pl/articles/2204071.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
absorber plate
fluid flow
heat transfer
solar air heater
reynolds number
relative roughness height
Opis:
The present paper describes the experimental analysis of heat transfer and friction factor for glass protected three-side artificially roughened rectangular duct solar air heaters (SAHs) having an arrangement of multiple-v and transverse wires (top wall multi-v and two side walls transverse) under the absorber plate, and compares their performance with that of one-side roughened solar air heaters under similar operating conditions. The investigated three-side solar air heaters are characterized by a larger rate of heat transfer and friction factor as compared to one-side artificially roughened SAHs by 24–76% and 4–36%, respectively, for the identical operating parameters. The air temperature below the three-side rugged duct is by 34.6% higher than that of the one-side roughened duct. Three-side solar air heaters are superior as compared to one-side artificially roughened solar air heaters qualitatively and quantitatively both.
Źródło:
Archives of Thermodynamics; 2023, 44, 1; 63--87
1231-0956
2083-6023
Pojawia się w:
Archives of Thermodynamics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Identification of Data Affected by Aberrant Errors in the Study of the Milling Process on Aluminum Alloys
Autorzy:
Țîțu, Aurel Mihail
Pop, Alina Bianca
Powiązania:
https://bibliotekanauki.pl/articles/27324482.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
cutting process
surface roughness
aberrant error
Romanovski test
Opis:
In this scientific paper it is presented the statistical analysis of the experimental data obtained by the study of the influence of the cutting parameters exerted in end-milling process on the surface roughness. The surface roughness parameter is measured in the cutting feed direction and against it. The parameters of the cutting process, the number of levels and their values were established. Based on these parameters, the research was designed on a complete factorial experiment, randomized with seven blocks. The surface roughness values were measured using a roughness tester. The research method used involved the Romanovski test. The aim of this test was to identify the data affected by aberrant errors, to remove them from the samples and then to repeat the tests for the remaining data strings until all values met the conditions imposed by the test.
Źródło:
Archives of Metallurgy and Materials; 2023, 68, 2; 525--530
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of aluminum alloys surface treatment on the durability of glued joints
Wpływ obróbki powierzchni stopów aluminium na trwałość klejonych połączeń
Autorzy:
Kowalik, Joanna
Tworek, Magdalena
Smaruj, Michał
Powiązania:
https://bibliotekanauki.pl/articles/24202770.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Chemii Przemysłowej
Tematy:
aluminum
aluminum alloy
surface treatment
surface roughness
aluminium
stopy aluminium
obróbka powierzchni
chropowatość powierzchni
Opis:
The aim of the work was to analyze the method of preparing the aluminum surface in terms of the functional properties of glued joints with the use of one-component polyurethane adhesive. Six methods of surface treatment of EN AW-5251 aluminum alloy were tested. In addition, changes in the shear strength of adhesive joints after environmental exposure were determined. The best surface preparation processes were atmospheric plasma and anodizing.
Celem pracy była analiza sposobu przygotowania powierzchni aluminium pod kątem właściwości użytkowych połączeń klejonych z zastosowaniem jednoskładnikowego kleju poliuretanowego. Zbadano sześć metod obróbki powierzchni stopu aluminium EN AW-5251. Ponadto określono zmiany wytrzymałości połączeń klejonych na ścinanie po ekspozycji środowiskowej. Najlepszym sposobem przygotowania powierzchni była plazma atmosferyczna i anodowanie.
Źródło:
Polimery; 2023, 68, 10; 523--529
0032-2725
Pojawia się w:
Polimery
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Surface Roughness on the High Temperature / High Strain Low Cycle Fatigue Behavior of Nickel-Based Superalloy Rene®80
Autorzy:
Barjesteh, Mohammad Mehdi
Powiązania:
https://bibliotekanauki.pl/articles/27313861.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
superalloy
Rene®80
surface roughness
low cycle fatigue
fracture surface
Opis:
Since fatigue cracks nucleate and initiate generally at the surface of the rotary components such as blades and discs, the surface condition is the most important factor affecting the fatigue life. Surface scratches are suitable sites for stress concentrations and therefore the nucleation stage of fatigue cracks will be shortened. In the present work, the influence of surface roughness on the low cycle fatigue life behavior of nickel-based superalloy Rene®80 at the temperature of 900°C was evaluated. Results of low cycle fatigue tests (LCF) under strain-controlled condition at 900°C for R = εmin/εmax = 0 and strain rate of 2×10-3 s-1, at a total strain range of 1.2% showed an inverse relationship between fatigue strength and surface roughness of the specimens. In this study, increasing the surface roughness of Rene®80 from 0.2 μm to 5.4 μm led to the decline in the final LCF life from 127 cycles to 53 cycles which indicated a 58.3% reduction in fatigue life at the same condition. Fractography evaluation also exhibited that fatigue cracks initiated from the notch in the rough specimens, whereas in the smooth specimen fatigue cracks nucleated from the internal imperfections and carbides.
Źródło:
Archives of Metallurgy and Materials; 2023, 68, 2; 507--516
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of weft density on selected parameters of fabric surface
Wpływ liczności wątku na wybrane parametry powierzchni tkanin
Autorzy:
Kosiuk, Gabriela
Matusiak, Małgorzata
Powiązania:
https://bibliotekanauki.pl/articles/27324231.pdf
Data publikacji:
2023
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Skórzanego
Tematy:
roughness
profilometer
weave
fabric
surface
chropowatość
profilometr
splot
tkanina
powierzchnia
Opis:
The geometric structure of surface of textile materials have significant functional, operational and aesthetic importance. The basic parameters of the woven fabrics’ structure are the following: weave, warp and weft density as well as warp and weft linear density. Roughness is one of the surface quality features most often assessed by quantitative indicators called surface roughness parameters. The aim of the presented research was to analyze the parameters characterizing the geometric structure of the surface of cotton woven fabrics with twill weave. Surface topography measurements were performed using the MicroSpy® Profile profilometer by FRT the art of metrology™. The research confirmed that, on the basis of the results obtained with the profilometer, it is possible to analyze comprehensively the topography of the fabric surface.
Struktura geometryczna powierzchni materiałów tekstylnych ma duże znaczenie funkcjonalne, eksploatacyjne i estetyczne. Podstawowymi parametrami struktury tkanin są: gęstość splotu, osnowy i wątku oraz gęstość liniowa osnowy i wątku. Chropowatość jest jedną z cech jakości powierzchni najczęściej ocenianych za pomocą wskaźników ilościowych, zwanych parametrami chropowatości powierzchni. Celem prezentowanych badań była analiza parametrów charakteryzujących strukturę geometryczną powierzchni tkanin bawełnianych o splocie skośnym. Pomiary topografii powierzchni przeprowadzono przy użyciu profilometru MicroSpy® Profile firmy FRT the art of metrology™. Badania potwierdziły, że na podstawie wyników uzyskanych za pomocą profilometru można kompleksowo analizować topografię powierzchni tkaniny.
Źródło:
Technologia i Jakość Wyrobów; 2023, 68; 4--18
2299-7989
Pojawia się w:
Technologia i Jakość Wyrobów
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modelling of surface roughness and tool wear when finish milling process of the circular bevel gear
Autorzy:
Pham, Van Dong
Hoang, Xuan Thinh
Powiązania:
https://bibliotekanauki.pl/articles/2200262.pdf
Data publikacji:
2023
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
circular bevel gear
surface roughness model
tool wear model
multi-objective optimisation
Opis:
An experimental process to build the models of surface roughness and tool wear in the finish milling of the Gleason circular bevel gears was carried out in this study. The experiments were conducted according to a Box-Behnken matrix. Three cutting parameters were adjusted in each experiment including cutting speed, feed rate, and depth of cut. From the experimental results, the influences of cutting parameters on the surface roughness and tool wear were analysed in detail. Two models of surface roughness and tool wear were established with high accuracy. The optimal values of the cutting parameters were also determined to simultaneously ensure the minimum values of two output parameters. The further research directions were also suggested at the end of this study.
Źródło:
Journal of Machine Engineering; 2023, 23, 1; 154--169
1895-7595
2391-8071
Pojawia się w:
Journal of Machine Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 545

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