Добірка наукової літератури з теми "TAYLOR HOBSON'S SURTRONIC 3++"

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Статті в журналах з теми "TAYLOR HOBSON'S SURTRONIC 3++"

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Lopes, Camila Santos Doubek, Adriana Maria Nolasco, Mário Tomazello Filho, and Carlos Tadeu dos Santos Dias. "Avaliação da rugosidade superficial da madeira de Eucalyptus sp submetida ao fresamento periférico." CERNE 20, no. 3 (September 2014): 471–76. http://dx.doi.org/10.1590/0104776020142003875.

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Анотація:
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.
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Pochrząst, M., Jan Marciniak, K. Wróbel, and Bohdan Bączkowski. "Electrochemical Properties of Ni-Cr and Co-Cr Alloys Used in Prosthodontics." Solid State Phenomena 183 (December 2011): 143–48. http://dx.doi.org/10.4028/www.scientific.net/ssp.183.143.

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Анотація:
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.
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Mohan, N. S., S. M. Kulkarni, and A. Ramachandra. "Optimization of Process Parameters During Drilling of Glass-Fiber Polyester Reinforced Composites Using DOE and ANOVA." IIUM Engineering Journal 7, no. 1 (September 29, 2010): 13–24. http://dx.doi.org/10.31436/iiumej.v7i1.73.

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Анотація:
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.
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Sun, Jian, Peng Zhou, Yu Hou Wu, Ke Zhang, and Li Xiu Zhang. "Analysis on the Factors of Surface Morphologies on Si3N4 Ceramic Internal Grinding." International Journal of Engineering Research in Africa 31 (July 2017): 44–52. http://dx.doi.org/10.4028/www.scientific.net/jera.31.44.

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Анотація:
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.
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MILEWSKI, Krystian, Monika MADEJ, Magdalena NIEMCZEWSKA-WÓJCIK, and Dariusz OZIMINA. "EVALUATION OF THE PROPERTIES OF DIAMOND-LIKE CARBON COATINGS LUBRICATED WITH IONIC LIQUIDS." Tribologia, no. 5 (October 31, 2017): 37–45. http://dx.doi.org/10.5604/01.3001.0010.5901.

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Анотація:
The purpose of the study was to evaluate the properties of DLC coatings with ionic liquids used as lubricants. The type a-C: H DLC coatings were deposited onto the 100Cr6 steel substrate by PVD. The surface topography of the DLC coatings was studied with a Bruker's Dimension Icon® Atomic Force Microscope (AFM), and surface morphology testing, cross section and chemical composition analyses were performed using the Jeol JSM-7100F scanning electron microscope, equipped with an EDS microanalyzer. Surface geometry measurements prior to and after tribological tests were performed on a Taylor Hobson's Talysurf CCI contactless optical profilometer. The tribological tests were carried out on an Anton Paar TRB tribotester under technically dry and lubricated friction with an ionic liquid, 1-Butyl-3-methylimidazolium tetrafluoroborate. The results show that DLC coatings and ionic liquids can significantly reduce resistance to motion.
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Дисертації з теми "TAYLOR HOBSON'S SURTRONIC 3++"

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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.

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Анотація:
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%.
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Тези доповідей конференцій з теми "TAYLOR HOBSON'S SURTRONIC 3++"

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Alsayyed, Basel, Mohammad O. Hamdan, and 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.

Повний текст джерела
Анотація:
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.
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