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Готові списки джерел за темами / Dimensional and geometrical precision

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Добірка наукової літератури з теми "Dimensional and geometrical precision"

Автор: Grafiati

Опубліковано: 11 березня 2023

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Статті в журналах з теми "Dimensional and geometrical precision"

1

Liu, Junfeng, Yuqian Zhao, Tao Lai, Fei Li, and Kexian Liu. "Identification of Geometrical Error on Multi-Axis Machine Tools Based on a Laser Tracker." Journal of Physics: Conference Series 2185, no. 1 (2022): 012008. http://dx.doi.org/10.1088/1742-6596/2185/1/012008.

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Abstract The geometrical errors are affected by many factors for a multi-axis machine tool, such as materials, manufacturing, assembly, measurement, control, and environmental. The geometric error will eventually be reflected in the accuracy of the workpiece; therefore, for each part of the machine tool, the measurement of geometric error is essential. Most geometrical errors are measured separately for each axis. The single geometrical error measurement method is time-consuming. The multiple geometric error measurement methods have some limitations based on different instruments. Laser tracke

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2

Cristofolini, Ilaria, Melania Pilla, Andrea Rao, Stefano Libardi, and Alberto Molinari. "Dimensional and geometrical precision of powder metallurgy parts sintered and sinterhardened at high temperature." International Journal of Precision Engineering and Manufacturing 14, no. 10 (2013): 1735–42. http://dx.doi.org/10.1007/s12541-013-0233-5.

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3

Relea, Eduard, Lukas Weiss, and Konrad Wegener. "Experimental Study on the Geometrical and Dimensional Stability of Natural Stone Sorts for Precision Machinery." Procedia CIRP 80 (2019): 89–94. http://dx.doi.org/10.1016/j.procir.2019.01.107.

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4

Mühlstädt, Mike, Wolfgang Seifert, Matthias ML Arras, Stefan Maenz, Klaus D. Jandt, and Jörg Bossert. "An advanced geometrical model for laminated woven fabrics using Lamé exponents with enhanced accuracy." Journal of Composite Materials 52, no. 11 (2017): 1443–55. http://dx.doi.org/10.1177/0021998317725570.

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Three-dimensional stiffness tensors of laminated woven fabrics used in high-performance composites need precise prediction. To enhance the accuracy in three-dimensional stiffness tensor prediction, the fabric’s architecture must be precisely modeled. We tested the hypotheses that: (i) an advanced geometrical model describes the meso-level structure of different fabrics with a precision higher than established models, (ii) the deviation between predicted and experimentally determined mean fiber-volume fraction ( cf) of laminates is below 5%. Laminates of different cf and fabrics were manufactur

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5

Battey, H. S., and D. R. Cox. "High dimensional nuisance parameters: an example from parametric survival analysis." Information Geometry 3, no. 2 (2020): 119–48. http://dx.doi.org/10.1007/s41884-020-00030-6.

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AbstractParametric statistical problems involving both large amounts of data and models with many parameters raise issues that are explicitly or implicitly differential geometric. When the number of nuisance parameters is comparable to the sample size, alternative approaches to inference on interest parameters treat the nuisance parameters either as random variables or as arbitrary constants. The two approaches are compared in the context of parametric survival analysis, with emphasis on the effects of misspecification of the random effects distribution. Notably, we derive a detailed expressio

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6

Monroy, Karla, Jordi Delgado, Lidia Sereno, Joaquim Ciurana, and Nicolas J. Hendrichs. "Geometrical feature analysis of Co-Cr-Mo single tracks after selective laser melting processing." Rapid Prototyping Journal 21, no. 3 (2015): 287–300. http://dx.doi.org/10.1108/rpj-11-2013-0122.

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Purpose – Therefore, the purpose of this study is to understand the relationships between the processing parameters and the geometric form of the produced single tracks, in order to control dimensional quality in future experimentations. The quality of the deposited single track and layer is of prime importance in the selective laser melting (SLM) process, as it affects the product quality in terms of dimensional precision and product performance. Design/methodology/approach – In this paper, a vertical milling machining center equipped with an Ytterbium-fiber laser was used in the SLM experime

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7

Ji, H. Z., L. Yuan, and D. B. Shan. "Study on geometrical and dimensional changes in isothermal precision forging with complex shape during air cooling process." Materials Research Innovations 15, sup1 (2011): s466—s469. http://dx.doi.org/10.1179/143307511x12858957675831.

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8

Ueng, Shyh-Kuang, Hsin-Cheng Huang, Chieh-Shih Chou, and Hsuan-Kai Huang. "Layered manufacturing for medical imaging data." Advances in Mechanical Engineering 11, no. 8 (2019): 168781401987139. http://dx.doi.org/10.1177/1687814019871392.

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Layered manufacturing techniques have been successfully employed to construct scanned objects from three-dimensional medical image data sets. The printed physical models are useful tools for anatomical exploration, surgical planning, teaching, and related medical applications. Before fabricating scanned objects, we have to first build watertight geometrical representations of the target objects from medical image data sets. Many algorithms had been developed to fulfill this duty. However, some of these methods require extra efforts to resolve ambiguity problems and to fix broken surfaces. Othe

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9

FANG, CHONGHUA, QIAN LIU, and XIAONAN ZHAO. "IMPROVED INTEGRATED MODEL OF ELECTROMAGNETIC SCATTERING FOR TWO DIMENSIONAL FRACTAL SEA SURFACE." International Journal of Modern Physics B 24, no. 22 (2010): 4217–24. http://dx.doi.org/10.1142/s0217979210056542.

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In this paper, an improved integrated model of electromagnetic scattering for two dimensional fractal sea surface is built. Both geometrical fractal characteristic and permittivity characteristic of sea water are strictly considered, especially for the effects of salinity and temperature on the electromagnetic field scattered by sea water are added on. Finally, the calculated results from the new model are in accord with experimental results in terms of backscattering coefficient of sea water with no more than 2 dB error, which present higher precision than those traditional models. Thus, by u

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10

Abeni, Andrea, Alessandro Metelli, Cristian Cappellini, and Aldo Attanasio. "Experimental Optimization of Process Parameters in CuNi18Zn20 Micromachining." Micromachines 12, no. 11 (2021): 1293. http://dx.doi.org/10.3390/mi12111293.

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Анотація:

Ultraprecision micromachining is a technology suitable to fabricate miniaturized and complicated 3-dimensional microstructures and micromechanisms. High geometrical precision and elevated surface finishing are both key requirements in several manufacturing sectors. Electronics, biomedicals, optics and watchmaking industries are some of the fields where micromachining finds applications. In the last years, the integration between product functions, the miniaturization of the features and the increasing of geometrical complexity are trends which are shared by all the cited industrial sectors. Th

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