Development and Research of a Profile Recorder for Measuring Deviations in the Shape of the Surface of Products by Laser Spiral Scanning

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Development and Research of a Pro fi le Recorder for Measuring Deviations in the Shape of the Surface of Products by Laser Spiral Scanning Sergey Vasiliev a, * , Viktor Alekseev b , Mikhail Vasiliev c , Alyona Fedorova d I. N. Ulianov Chuvash State University, 15 Moskovsky Prospekt, Cheboksary, 428015, Russian Federation a https://orcid.org/0000-0003-3346-7347, vsa_21@mail.ru , b https://orcid.org/0000-0002-2780-1727, av77@list.ru, c https://orcid.org/0000-0001-7275-9751, mishawasilev@mail.ru, d https://orcid.org/0000-0002-0257-9197, e_a_a@mail.ru Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science. 2020 vol. 22 no. 4 pp. 71–81 ISSN: 1994-6309 (print) / 2541-819X (online) DOI: 10.17212/1994-6309-2020-22.4-71-81 Obrabotka metallov - Metal Working and Material Science Journal homepage: http://journals.nstu.ru/obrabotka_metallov ARTICLE INFO Article history : Received: 12 September 2020 Revised: 19 September 2020 Accepted: 01 October 2020 Available online: 15 December 2020 Keywords : Pro fi le recorder Deviation measurement Surface shape Spiral scanning Laser method Product Corrugated pro fi le Funding The results were obtained under the grant of the President of the Russian Federation for state support of young Russian scientists MD-1198.2020.8, agreement No. 075-15-2020-228. ABSTRACT Introduction . The paper deals with the development of a Pro fi le recorder and measurement of deviations in the shape of the surface of products by laser spiral scanning. Analysis of the scienti fi c literature shows that at present, the issues of monitoring and evaluating deviations in the shape of the surface of products require further research, since the use of well-known devices and methods does not always provide the necessary accuracy, manufacturability and suf fi cient information content of measurements. The research urgency is caused by the fact that existing methods of measuring form deviations of the surfaces does not allow to de fi ne a set of parameters with the required accuracy and submit it to two-dimensional and three-dimensional form. Objective : to develop a new method for evaluating a three-dimensional pro fi le by implementing the method of laser spiral scanning and study the Pro fi le recorder to improve the accuracy and productivity of measuring deviations in the shape of the product surface. Methods . The paper proposes a new method for evaluating a three-dimensional surface pro fi le in order to directly determine the shape of the surface of products, to control the quality of the surface of products, regardless of its location. To implement the method, a Pro fi le recorder of an original design is developed and investigated, which provides measurement of two parameters along the Archimedean spiral. Optimization of the design and the method of presenting information for measuring deviations in the shape of the surface of products are performed. Results and discussion . A method of statistical estimation of equations for describing the shape of metal surfaces based on the use of classical laws is proposed. In the case of a fl at surface, deviations from fl atness are evaluated: undulation, warping, twisting, convexity, concavity, curvature, etc. A Pro fi le recorder is developed to implement the proposed method. The automated mechatronic device and the proposed method are tested on corrugated surfaces. Various equations obtained as a result of statistical processing were compared with each other, and the equation with the highest coef fi cient of determination is selected. The Pro fi le recorder in Cartesian coordinates is studied in order to obtain reliable and accurate data for estimating shape deviations. The values of the de fl ection and the size of the corrugation along the height of the C-9 corrugated sheet are determined by laser spiral scanning. For citation: Vasiliev S.A., Alekseev V.V., Vasiliev M.A., Fedorova A.A. Development and research of a pro fi le recorder for measuring deviations in the shape of the surface of products by laser spiral scanning. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science , 2020, vol. 22, no. 4, pp. 71–81. DOI: 10.17212/1994-6309-2020-22.4-71-81. (In Russian). ______ * Corresponding author Vasiliev Sergey A. , D.Sc. (Engineering), Associate Professor, I.N. Ulianov Chuvash State University, 15 Moskovsky Prospekt, 428015, Cheboksary, Russia Tel.: +7 (927) 843-22-90, e-mail: vsa_21@mail.ru