Prof. Lydmila A. Uvarova Profile

Prof. Lydmila A. Uvarova

at Moscow State Univ. of Technology "STANKIN"

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Author

Publications (4)

Proceedings Article | 18 June 2024 Poster + Paper

A new algorithm for recreating the technological process of high-speed multicoordinate processing based on improving key indicators of image recognition

Petr Pivkin, Artem Ershov, Vladimir Grechishnikov, Lyudmila Uvarova, Vladimir Kuznetsov, Anton Yazev, Michail Prus, Dazhong Wang, Xiaohui Jiang, Rao Yao, Alexey Nadykto

Proceedings Volume 12998, 129981Q (2024) https://doi.org/10.1117/12.3022523

KEYWORDS: Image processing, Profiling, Detection and tracking algorithms, Image filtering, Design, Control systems, Point clouds, Tunable filters, Resistance, Reflection

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Proceedings Article | 18 June 2024 Poster + Paper

A new method and practical recommendations for measuring geometric accuracy, linear and angular measurements of helical surfaces of end mill for HSM

Petr Pivkin, Anton Yazev, Artem Ershov, Lyudmila Uvarova, Alexey Nadykto

Proceedings Volume 12998, 129981R (2024) https://doi.org/10.1117/12.3022861

KEYWORDS: Profiling, Image processing, Cameras, Image segmentation, Teeth, Reflection, Process control, Manufacturing, Error analysis, Digital image processing

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In precision engineering, helical surfaces on critical parts of equipment have become widespread. The article proposes an new method and practical recommendations for measuring geometric accuracy, linear and angular measurements, and studying the characteristics of helical surfaces and specialized equipment for monitoring the accuracy of helical surfaces. The uniqueness of the approach lies in the formation of key indicators of classification and filtering of a set of specialized measurement techniques based on scanning and digital image processing. A new method is proposed that makes it possible to adjust the measurement of the coordinates of the profile points of the helical surface in the radial section according to the shape of the focal area on the helical surface obtained by a reflected light camera. The work established new indicators of the effectiveness of tool control for high-speed multi-axis milling based on recommendations for the selection of methods and means of monitoring and control at the stage of technological preparation of production in real time. Criteria and indicators have been formed to eliminate errors at any stage in the process of digital control of images of the helical surface of a cutting tool for high-speed machining. The method consists in determining the law of preserving the shape of the profile, its further rotation and comparison with the original control profile by identifying a new relationship between the focal length and the profiling shape. The shape of the profiling curve is described depending on the angle of inclination of the helical flute, diameter, segmentation of the image in the focal zone and the magnitude of the error when measuring the profile in real time relative to the base profile. In this regard, the work justifies the practical adaptation of the search results for key measurement schemes in comparison with other existing methods for helical surfaces with an rake angle of the tangent to the profile in the axial section. The new level of production creates greater demand for product quality efficiency in a unified digital environment. As an advanced solution, the work proposes a method for compensating for errors in the shape of the focus area. This method allows you to compensate for the error in real time without stopping for readjustment. More accurate results allowed for an increase in accuracy up to 10 times compared to existing methods.

Proceedings Article | 19 December 2022 Poster + Paper

Development of an approach to automated design and measurement of the front surface of ceramic cutters with a system for modifying the original design

Petr Pivkin, Vladimir Grechishnikov, Kirill Nazarenko, Vladimir Kuznetsov, Dazhong Wang, Alexey Nadykto, Liudmila Uvarova

Proceedings Volume 12319, 1231923 (2022) https://doi.org/10.1117/12.2646528

KEYWORDS: Design and modelling, Ceramics, 3D image processing, Solids, Manufacturing, Resistance, Interpolation, Image enhancement, Engineering

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Proceedings Article | 16 December 2022 Presentation + Paper

Method for determining the rational shape of the front surface of cutting inserts for computer-aided manufacturing system of laser ablation

Petr Pivkin, Artem Ershov, Vladimir Kuznetsov, Kirill Nazarenko, Xiaohui Jiang, Liudmila Uvarova, Alexey Nadykto

Proceedings Volume 12312, 123120O (2022) https://doi.org/10.1117/12.2646530

KEYWORDS: Laser cutting, Laser ablation, Manufacturing, Computing systems, Laser systems engineering, Design and modelling, Control systems, Computer aided design, Chemical elements, Beam diameter

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