Letteratura scientifica selezionata sul tema "TAYLOR HOBSON'S SURTRONIC3+"
Cita una fonte nei formati APA, MLA, Chicago, Harvard e in molti altri stili
Consulta la lista di attuali articoli, libri, tesi, atti di convegni e altre fonti scientifiche attinenti al tema "TAYLOR HOBSON'S SURTRONIC3+".
Accanto a ogni fonte nell'elenco di riferimenti c'è un pulsante "Aggiungi alla bibliografia". Premilo e genereremo automaticamente la citazione bibliografica dell'opera scelta nello stile citazionale di cui hai bisogno: APA, MLA, Harvard, Chicago, Vancouver ecc.
Puoi anche scaricare il testo completo della pubblicazione scientifica nel formato .pdf e leggere online l'abstract (il sommario) dell'opera se è presente nei metadati.
Articoli di riviste sul tema "TAYLOR HOBSON'S SURTRONIC3+"
1
Rapone, Biagio, Sebastian Pedone, Antonio Carnevale, Pasquale Plantamura, Antonio Scarano, Antonio Demelio, Giuseppe Pompeo Demelio e Massimo Corsalini. "Profilometer Comparison of the Surface Roughness of Four Denture Base Resins: An In Vitro Study". Applied Sciences 12, n. 4 (10 febbraio 2022): 1837. http://dx.doi.org/10.3390/app12041837.
Testo completoAbstract (sommario):
Background: The roughness of denture base materials is mainly affected by inherent material features, the polishing technique, and the operator’s manual skills. The surface irregularities of the denture base resin’s roughness profile is one of the components characterizing the superficial topography of dental prostheses, and it is a critical parameter for describing surface morphology. Generally, the increment of the surface roughness minimizes cleanability and promotes the rate of bacterial adherence, affecting the expression of bacterial adhesins. The purpose of this in vitro study was to investigate the roughness of four commercially available denture base resins employed for removable prosthodontics. Methods: Twenty-five specimens were realized and submitted to observation for three dimensions (vertically, horizontally, 45°). Average surface roughness (Ra), Rv, Rp, and Rq were measured with a calibrated mechanical roughness tester (Taylor Hobson Surtronic 25; Taylor Hobson, Leicester, UK). Data were analyzed through a Kruskal–Wallis test. Results: Significant differences in Ra between the groups were assessed. Baltic Denture System™ (Merz Dental GmbH; Lütjenburg, Germania) showed a lower surface roughness coefficient and a more homogeneous surface. Conclusions: The functional importance of surface roughness parameters for denture base materials must be explored, not only considering recognized surface features.
2
Lopes, Camila Santos Doubek, Adriana Maria Nolasco, Mário Tomazello Filho e Carlos Tadeu dos Santos Dias. "Avaliação da rugosidade superficial da madeira de Eucalyptus sp submetida ao fresamento periférico". CERNE 20, n. 3 (settembre 2014): 471–76. http://dx.doi.org/10.1590/0104776020142003875.
Testo completoAbstract (sommario):
Conduziu-se este trabalho, com o objetivo de avaliar a qualidade de superfície usinada da madeira de três espécies de Eucalyptus sp, para a produção de produtos madeireiros. Para os ensaios, foram confeccionados e usinados 48 corpos de prova de madeira de cada espécie, nos tratamentos de usinagem em fresadora de eixo vertical, no sentido discordante, em sete velocidades. Na avaliação da qualidade da superfície dos corpos de prova de madeira, utilizou-se o rugosímetro marca Taylor Hobson modelo Surtronic 3+, utilizando o filtro 2CR, com comprimento de amostragem com 0,80 Ie ou ln (mm) e cut-off de 0,80 λc (mm). Os resultados indicaram que a madeira do E. urophylla apresentou a melhor qualidade de superfície com os menores valores de coeficiente de variação; a madeira do E. grandis mostrou-se intermediária e a do E. dunnii apresentou o pior desempenho e o maior valor de coeficiente de variação. Observou-se, também, que o desempenho dos tratamentos para a madeira das espécies de Eucalyptus sp mostrou relação da redução da velocidade de avanço da usinagem com a rugosidade superficial; melhor na de 3-4 m.min-1 e pior na de 22 m.min-1. Constatou-se, também, que a qualidade da superfície da madeira usinada relacionou-se com a sua densidade e tipo de grã.
3
Pochrząst, M., Jan Marciniak, K. Wróbel e Bohdan Bączkowski. "Electrochemical Properties of Ni-Cr and Co-Cr Alloys Used in Prosthodontics". Solid State Phenomena 183 (dicembre 2011): 143–48. http://dx.doi.org/10.4028/www.scientific.net/ssp.183.143.
Testo completoAbstract (sommario):
The aim of the work was evaluation of electrochemical properties of Co-based alloys (Remanium GM 800+ and Biosil F) and Ni-based alloys (Heraenium NA and Remanium G-Soft) commonly used on frameworks for porcelain faced cast partial dentures. First stage of the work was evaluation of surface roughness by means of direct linear contact measurement (SURTRONIC 3+ profiler, Taylor/Hobson) of samples after casting and surface treatment. Electrochemical properties of surface were assessed by means of potentiodynamic and impedance methods. In potentiodynamic tests, in order to evaluate pitting corrosion resistance of the analyzed alloys, anodic polarization curves were recorded. The VoltaLab® PGP 201 system was applied in corrosion tests. Moreover, in order to evaluate structure and properties of the surface layer the electrochemical impedance spectroscopy (EIS) was applied. Selection of this method enabled to determine the impedance of the material – surface layer – solution interface with the use of approximation of impedance data by means of equivalent electric circuit model. The EIS tests were carried out with the use of the AutoLab PGSTAT 302N system equipped with the FRA2 Faraday impedance module. Electrochemical tests were carried out in artificial saliva at the temperature of 37°C and pH = 7,0±0,1.
4
Sun, Jian, Peng Zhou, Yu Hou Wu, Ke Zhang e Li Xiu Zhang. "Analysis on the Factors of Surface Morphologies on Si3N4 Ceramic Internal Grinding". International Journal of Engineering Research in Africa 31 (luglio 2017): 44–52. http://dx.doi.org/10.4028/www.scientific.net/jera.31.44.
Testo completoAbstract (sommario):
Different grinding parameters of silicon nitride ceramic are researched at the process of internal grinding. The influences on the roughness of surface by the linear speed of grinding wheel (vs), radial feeding speed (f) and axial vibration speed (fa) are studied in the uniformity testing. The experimental equation of silicon nitride ceramic internal grinding is optimized. The machined surface morphologies of the ceramic specimen are measured by roughness instrument of Taylor-Hobson Surtroni-25 and scanning electron microscope of S-4800. The results show that with the increasing of the linear speed of grinding wheel the roughness of surface get reduced, and with the increasing of radial feeding speed the roughness of surface get raised. It is also inversely proportional to the axial vibration speed. The linear speed of grinding wheel has the biggest impact on the roughness of surface of the silicon nitride ceramic internal grinding among the three grinding parameters. With the increasing of linear speed of grinding wheel, the value of roughness of surface declines from 0.4095μm to 0.1726μm. The influences on the roughness of surface of the silicon nitride ceramic internal grinding by different factors are found out in the research, and its removal mechanisms are cleared up under different linear speeds of grinding wheel.
5
Bharathi, R. Arun, P. Ashoka Varthanan e K. Manoj Mathew. "Experimental Investigation of Process Parameters in Wire Electrical Discharge Machining by Response Surface Methodology on IS2062 Steel". Applied Mechanics and Materials 550 (maggio 2014): 53–61. http://dx.doi.org/10.4028/www.scientific.net/amm.550.53.
Testo completoAbstract (sommario):
The objective of the present work is to predict the optimal set of process parameters such as peak current (IP), pulse on/off time (TON/TOFF) and spark gap voltage (SV) to achieve minimum Surface roughness (Ra), wire consumption rate (WCR) and maximum material removal rate (MRR). In this work, experiments were carried out by pulse arc discharges generated between ZnO coated brass wire and specimen (IS2062 steel) suspended in deionized water dielectric. The experiments were designed based on the above mentioned four factors, each having three levels. Custom design based Response Surface Methodology (RSM) is used in this research. 21 runs of experiments were constructed based on custom design procedure and results of the experimentation were analyzed analytically as well as graphically. Moreover the surface roughness after machining was measured by Taylor Hobson Surtronic device. Second order regression model has been developed for predicting Ra, WCR and MRR in terms of interactive and higher order machining parameters through RSM, utilizing relevant experimental data as obtained through experimentation. The research outcome identifies significant parametersand their effect on process performance on IS2062 steel. The results revealed that peak current, pulse on-time and their interactions have significant effects on Ra, whereas pulse off time and peak current have significant effects on MRR and it is also observed that peak current and interaction between peak current and pulse off time have significant effects on WCR. The adequacy of the above proposed models has been tested through the analysis of variance (ANOVA).
6
Mohan, N. S., S. M. Kulkarni e A. Ramachandra. "Optimization of Process Parameters During Drilling of Glass-Fiber Polyester Reinforced Composites Using DOE and ANOVA". IIUM Engineering Journal 7, n. 1 (29 settembre 2010): 13–24. http://dx.doi.org/10.31436/iiumej.v7i1.73.
Testo completoAbstract (sommario):
Polymer-based composite material possesses superior properties such as high strength-to-weight ratio, stiffness-to-weight ratio and good corrosive resistance and therefore, is attractive for high performance applications such as in aerospace, defense and sport goods industries. Drilling is one of the indispensable methods for building products with composite panels. Surface quality and dimensional accuracy play an important role in the performance of a machined component. In machining processes, however, the quality of the component is greatly influenced by the cutting conditions, tool geometry, tool material, machining process, chip formation, work piece material, tool wear and vibration during cutting. Drilling tests were conducted on glass fiber reinforced plastic composite [GFRP] laminates using an instrumented CNC milling center. A series of experiments are conducted using TRIAC VMC CNC machining center to correlate the cutting parameters and material parameters on the cutting thrust, torque and surface roughness. The measured results were collected and analyzed with the help of the commercial software packages MINITAB14 and Taly Profile. The surface roughness of the drilled holes was measured using Rank Taylor Hobson Surtronic 3+ instrument. The method could be useful in predicting thrust, torque and surface roughness parameters as a function of process variables. The main objective is to optimize the process parameters to achieve low cutting thrust, torque and good surface roughness. From the analysis it is evident that among all the significant parameters, speed and drill size have significant influence cutting thrust and drill size and specimen thickness on the torque and surface roughness. It was also found that feed rate does not have significant influence on the characteristic output of the drilling process.
7
PAVKIN, DMITRIY YU. "STUDY OF THE PROPERTIES OF STEEL ENAMELED SURFACE FOR SILO TOWERS". Agricultural engineering, n. 2 (2022): 46–51. http://dx.doi.org/10.26897/2687-1149-2022-2-46-51.
Testo completoAbstract (sommario):
One of the technologies for obtaining and storing high-quality silage and haylage is the use of silo towers. The authors propose to manufacture silo towers from high-strength and corrosion-resistant steel sheets, coated with glass enamel, which has a lower coefficient of sliding friction than steel and concrete, as well as high resistance to aggressive environments. The aim of the study was to determine the properties of the glass-enamel coating of steel parts for the manufacturing of tower-type storages. A glass-enamel coating from a frit of glass-enamel brand MK-5 was applied to prepared sheets of steel 09G2S using a spray gun. The total thickness of the enameled coating ranged from 200 to 350 nm. Steel sheets were baked at a temperature of 850°C for 30 minutes. The thickness of the enamel coating was determined with an Olympus GX51 microscope. The roughness was determined using a TAYLOR HOBSON Surtronic 25 profilometer. The adhesive properties of the coating were studied using a Positest AT-M adhesive meter. Each test piece was tested twice. The tests were carried out on a sheet of 0.06 m2. The coefficient of sliding friction was determined on an adapted test bench. Laboratory tests with silage mass were carried out according to the developed methodology. Studies of the steel surface with a glass-enamel coating showed that the average thickness of the enameled layer was 690 nm, the roughness was 0.01 μm, and the adhesion was 5.25 MPa. The sliding friction coefficient of sliced plant materials on the enameled steel surface was 0.15, which is 2.6 and 3.2 times lower than that of non-enamelled steel and concrete, respectively. The authors have made conclusions about the possibility of using steel 09G2S in silo towers as a suitable sustitute for steel 65G and the sufficient efficiency of the chosen enameling technology.
8
PAVKIN, DMITRIY YU. "STUDY OF THE PROPERTIES OF STEEL ENAMELED SURFACE FOR SILO TOWERS". Agricultural engineering, n. 2 (2022): 46–51. http://dx.doi.org/10.26897/2687-1149-2022-2-46-51.
Testo completoAbstract (sommario):
One of the technologies for obtaining and storing high-quality silage and haylage is the use of silo towers. The authors propose to manufacture silo towers from high-strength and corrosion-resistant steel sheets, coated with glass enamel, which has a lower coefficient of sliding friction than steel and concrete, as well as high resistance to aggressive environments. The aim of the study was to determine the properties of the glass-enamel coating of steel parts for the manufacturing of tower-type storages. A glass-enamel coating from a frit of glass-enamel brand MK-5 was applied to prepared sheets of steel 09G2S using a spray gun. The total thickness of the enameled coating ranged from 200 to 350 nm. Steel sheets were baked at a temperature of 850°C for 30 minutes. The thickness of the enamel coating was determined with an Olympus GX51 microscope. The roughness was determined using a TAYLOR HOBSON Surtronic 25 profilometer. The adhesive properties of the coating were studied using a Positest AT-M adhesive meter. Each test piece was tested twice. The tests were carried out on a sheet of 0.06 m2. The coefficient of sliding friction was determined on an adapted test bench. Laboratory tests with silage mass were carried out according to the developed methodology. Studies of the steel surface with a glass-enamel coating showed that the average thickness of the enameled layer was 690 nm, the roughness was 0.01 μm, and the adhesion was 5.25 MPa. The sliding friction coefficient of sliced plant materials on the enameled steel surface was 0.15, which is 2.6 and 3.2 times lower than that of non-enamelled steel and concrete, respectively. The authors have made conclusions about the possibility of using steel 09G2S in silo towers as a suitable sustitute for steel 65G and the sufficient efficiency of the chosen enameling technology.
Tesi sul tema "TAYLOR HOBSON'S SURTRONIC3+"
1
PATHAK, VERSHA. "OPTIMIZING THE MACHINING PARAMETERS FOR SURFACE ROUGHNESS IN CNC TURNING OF HYBRID METAL MATRIX (Al-RHAGSA) COMPOSITES". Thesis, 2018. http://dspace.dtu.ac.in:8080/jspui/handle/repository/16593.
Testo completoAbstract (sommario):
In manufacturing industries, for determining the quality, surface finish of a product is very important. This study focuses on analyzing cutting parameters based on Taguchi method, a powerful tool to design optimization for quality, is used to minimize surface roughness. Taguchi method of design of experiments, the signal-to-noise (S:N) ratio, analysis of variance (ANOVA) and regression analysis are employed to investigate the cutting characteristics of three different metal matrix composites in varying proportion of reinforcements i.e. MMC (Al 7075-2%RHA2%GSA), MMC (Al7075-3.5%RHA-3.5%GSA) and MMC (Al7075-5%RHA-5%GSA) using carbide cutting tools. Different cutting parameters have different influence on the surface finish. The cutting speed, feed and depth of cut are considered using the suitable range recommended; which were 50.57m/min, 72.25m/min and 93.93m/min for cutting speed, 0.10mm/rev, 0.14mm/rev and 0.18mm/rev for feed and lastly 0.20mm, 0.35mm and 0.5mm for depth of cut. The specimen was turned under different level of parameters and was measured the surface roughness using a Taylor Hobson’s Surtronic 3+. According to the ANOVA analysis, feed is the dominant factor by 55.073% for MMC (Al7075-2%RHA-2%GSA) and depth of cut is the dominant factor by 28.056% for MMC (Al7075-3.5%RHA-3.5%GSA) and feed is the dominant factor by 55.073 for MMC (Al7075-5%RHA-5%GSA). The optimum cutting parameters which produce minimum surface roughness for MMC (Al7075-2%RHA-2%GSA) are 50.57m/min, 0.10mm/rev and 0.20mm. The optimum cutting parameters which produce minimum surface roughness for MMC (Al7075-3.5%RHA-3.5%GSA) are 93.93m/min, 0.10mm/rev and 0.50mm. The optimum cutting parameters which produce minimum surface roughness for MMC (Al7075-5%RHA-5%GSA) are 50.57m/min, 0.18mm/rev and 0.50mm. From tensile test it is concluded that in MMC (Al7075RHA-GSA), as the percentage of reinforcement increases up to certain value tensile strength decreases after this increase in reinforcement will improve tensile strength. From hardness test it is concluded that metal matrix composites (Al-RHA-GSA) have higher hardness value than pure Al 7075 alloy and as the percentage of reinforcement increases, hardness value also increases.
2
KOLI, YASHWANT. "ANALYSIS OF CUTTING PARAMETERS ON SURFACE ROUGHNESS IN TURNING OF MILD STEEL". Thesis, 2017. http://dspace.dtu.ac.in:8080/jspui/handle/repository/15855.
Testo completoAbstract (sommario):
In metal cutting and manufacturing industries, surface finish of a product is very crucial in
determining the quality. Good surface finish not only assures quality, but also reduces
manufacturing cost. Surface finish is important in terms of tolerances, it reduces assembly
time and avoids the need for secondary operation, thus reduces operation time and leads to
overall cost reduction. Besides, good-quality turned surface is significant in improving
fatigue strength, corrosion resistance, and creep life.
This study focuses on optimizing cutting parameters based on the Taguchi method, a
powerful tool to design optimization for quality, is used to minimize surface roughness. A
full factorial 27 experiments, the signal-to-noise (S:N) ratio, analysis of variance (ANOVA)
and regression analysis are employed to investigate the cutting characteristics of mild steel
bars using carbide cutting tools. The main objective is to study the effect of cutting speed,
feed and depth of cut on surface roughness of mild steel in turning operation using carbide
tool. Different cutting parameters have different influential on the surface finish. The cutting
speed, feed and depth of cut were decide using the suitable range recommended; which were
71.628m/min, 95.504m/min and 119.380m/min for cutting speed, 0.04mm/rev, 0.14mm/rev
and 0.24mm/rev for feed and lastly 0.2mm, 0.4mm and 0.6mm for depth of cut. The
specimen was turned under different level of parameters and was measured the surface
roughness using a Taylor Hobson’s Surtronic 3+. From the result, it is concluded that higher
cutting speed and lower feed produce better surface finish. The optimum cutting parameters
were 119.380m/min, 0.04mm/rev and 0.6mm, which produced minimum surface roughness
of 1.33μm. According to the ANOVA analysis, feed is the dominant factor by 85.82%.
Atti di convegni sul tema "TAYLOR HOBSON'S SURTRONIC3+"
1
Alsayyed, Basel, Mohammad O. Hamdan e Saud Aldajah. "Vortex Tube Impact on Cooling Milling Machining". In ASME 2012 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2012. http://dx.doi.org/10.1115/imece2012-89885.
Testo completoAbstract (sommario):
In this paper, the authors will present the use of a vortex tube in cooling milling operations. The focuses will be regarding the surface finish and temperature of the tool during the cutting operation. Three cooling setups, cutting without coolant, cooling with a water base traditional coolant, and cooling with vortex tube will be compared. A Flir E320 UV camera has been used to capture the heat map around the tool during the cutting process. The surface roughness has been measured and analysed for all three samples using Taylor/Hobson Precision Surtronc 3+ apparatus. The findings of this study have shown comparative efficient cooling using the vortex tubes. The vortex tube cooling is also cleaner and can be directed in such a way to collect the chips as they develop with the least mess or no mess. Vortex tubes have no moving parts, and it is very much maintenance free device. Compressed air is needed to feed the vortex tube, which is available usually in any machine shop.