Mr. Artem A. Ershov Profile

Artem A. Ershov

at MSTU Stankin

SPIE Involvement:

Author

Publications (26)

Proceedings Article | 8 November 2024 Poster + Paper

New technological solutions for the manufacturing and sharpening of three-flute drills

Petr Pivkin, Artem Ershov

Proceedings Volume 13234, 132340W (2024) https://doi.org/10.1117/12.3037625

KEYWORDS: Micro cutting, Laser cutting, Computer aided design, Modeling, Laser drilling, Manufacturing, Mathematical modeling, Laser ablation, Process modeling

Read Abstract +

In high-precision mechanical engineering, the need for small-sized products has been steadily increasing over the past decades and, thus, small-sized cutting tools are used for their production. Laser processing has become one of the most convenient and effective technologies. A new approach to manufacturing micro-cutting three-prong drills is based on the laser ablation technology, which allows to remove material from the workpiece surface regardless of its and has a small zone affected by heating. Laser ablation does not cause workpiece deformation or wear, which ensures high precision of shaping. The work presents a special technology of continuous impact on a section of the front and rear surfaces when forming a sharpening in the form of a set of B-splines. The splines are arranged in such a way that, as a result of removing material from the end of the drill, the cutting wedge forms an angle close to constant with a minimum duration of laser exposure, ensuring in this way the edge. Thus, the algorithm allows forming the working part of a three-tooth drill depending on the diameter, offset of the cutting edge, angle of inclination of the helical flute, front and rake angles of the blade. The new technology allows, for the first time, to form a point and back surface with constant angles on microcutting three-tooth drills with a minimum duration of laser exposure, in particular, when restoring restoration or cyst pointing of the cutting part of the drill. Unlike the known model of the tool is not discredited by the edge sections and the formation of the standard form of the flank surface but creates geometry along the freely formed cutting edge. The goal of minimizing the number of necessary physical tests while expanding the capabilities of the modeling results is achieved. The mathematical model of the process of forming the main rear surface of the drill will ensure the constancy of the normal clearance angle along the cutting edge of a freely shape.

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

Read Abstract +

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

Read Abstract +

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 | 27 November 2023 Poster + Paper

Computer-aided design system for a drill with an improved shape of the flunk surface

Petr Pivkin, Artem Ershov, Vladimir Grechishnikov, Inna Botryakova, Alexey Nadykto

Proceedings Volume 12762, 1276211 (2023) https://doi.org/10.1117/12.2691036

KEYWORDS: Laser drilling, Laser ablation, Computer aided design, Computing systems, Teeth, Kinematics, Design and modelling, Control systems

Read Abstract +

Proceedings Article | 27 November 2023 Poster + Paper

Computer-aided design system for the end mill made by laser ablation and grinding

Petr Pivkin, Anton Yazev, Vladimir Grechishnikov, Artem Ershov, Ilya Minin, Alexander Zelensky, Elena Alenina, Xiaohui Jiang, Alexey Nadykto

Proceedings Volume 12762, 1276210 (2023) https://doi.org/10.1117/12.2690322

KEYWORDS: Design and modelling, Computer aided design, Kinematics, Laser cutting, Computing systems, Teeth, Thermal deformation, Materials processing, Manufacturing

Read Abstract +

Proceedings Article | 27 November 2023 Poster + Paper

An approach for recognizing surface defects in products with a complex helical shape

Petr Pivkin, Anton Yazev, Vladimir Grechishnikov, Artem Ershov, Ilya Minin, Alexander Zelensky, Elena Alenina, Xiaohui Jiang, Alexey Nadykto

Proceedings Volume 12767, 127671T (2023) https://doi.org/10.1117/12.2690093

KEYWORDS: Quality control, Manufacturing, Image analysis, Detection and tracking algorithms, Reflection, Inspection, Industry, Histograms, Diamond

Read Abstract +

Proceedings Article | 27 November 2023 Poster + Paper

New indicators and standards for measuring of the end mill's helical groove by image processing

Petr Pivkin, Artem Ershov, Vladimir Grechishnikov, Vladimir Kuznetsov, Ekaterina Nazarenko, Elena Yu. Malysheva, Alexey Nadykto

Proceedings Volume 12769, 127691P (2023) https://doi.org/10.1117/12.2690091

KEYWORDS: Image processing, Standards development, Reflection, Optical surfaces, Optical metrology, Inspection

Read Abstract +