Obrabotka Metallov 2020 Vol. 22 No. 3

OBRABOTKAMETALLOV Vol. 22 No. 3 2020 41 TECHNOLOGY References 1. Oyelola O., Jackson-Crisp A., Crawforth P., Pieris D.M., Smith R.J., M’Saoubi R., Clare A.T. Machining of directed energy deposited Ti6Al4V using adaptive control. Journal of Manufacturing Processes , 2020, vol. 54, pp. 240–250. DOI: 10.1016/j.jmapro.2020.03.004. 2. Xiong G., Li Z.L., Ding Y., Zhu L.M. A closed-loop error compensation method for robotic fl ank milling. Robotics and Computer-Integrated Manufacturing , 2020, vol. 63, p. 101928. DOI: 10.1016/j.rcim.2019.101928. 3. Moreno M.G., Ruiz J.A., Azpeitia D.B., Gonzalez J.I.M., Fernandez L.G. Friction improvement via grinding wheel texturing by dressing. International Journal of Advanced Manufacturing Technology , 2020, vol. 107, iss. 11– 12, pp. 4939–4954. DOI: 10.1007/s00170-020-05350-6. Investigation of the Possibility of Finishing Laser processing of Aluminum Alloy D16 Workpieces Anton Kisel’ 1, a, * , Dmitrij Belan 2, b , Georgij Toder 2, c 1 Omsk State Technical University, 11 Prospekt Mira, Omsk, 644050, Russian Federation 2 Omsk State Transport University, 35 Prospekt K. Marksa, Omsk, 644046, Russian Federation a https://orcid.org/0000-0002-8014-0550, kisel1988@mail.ru, b https://orcid.org/0000-0002-7168-103X , Baltazar.13@mail.ru , c https://orcid.org/0000-0001-5000-7137, georgyt@mail.ru Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science. 2020 vol. 22 no. 3 pp. 33–43 ISSN: 1994-6309 (print) / 2541-819X (online) DOI: 10.17212/1994-6309-2020-22.3-33-43 Obrabotka metallov - Metal Working and Material Science Journal homepage: http://journals.nstu.ru/obrabotka_metallov ARTICLE INFO Article history : Received: 12 June 2020 Revised: 22 June 2020 Accepted: 30 July 2020 Available online: 15 September 2020 Keywords : Laser processing Surface roughness Finishing Aluminum alloy Density of lines Laser power ABSTRACT Introduction: One of the most important tasks in the production of metal parts is to ensure the necessary quality of the processed surface. There are many ways to achieve the required quality, but one of the least studied is laser micro-processing. The purpose of the work is to experimentally determine the possibility of reducing the roughness of the workpiece surface using laser processing. Methods: Laser treatment in these studies is performed using a laser marking system (LMS) “Turbomaster-B20”. The idea of the research is that using laser processing with rational modes it is possible to reduce the roughness of the workpiece surface by removing the vertices of micro- irregularities. The density of lines (  , lines/mm), described by the laser during processing, and the laser power ( N , %) are selected as the laser processing modes. Results and Discussion: As a result of the experiments and calculations, the response surface is constructed and the formula for the dependence of Ra av = f (  ; N ) is established. Evaluation of the established dependence showed that the reduction of roughness can be achieved by the following this modes:  = 120 lines/mm; N = 1...5 %. Then, laser processing of pre-milled and grounded workpieces with the obtained modes is performed. Based on the results of experimental studies presented in this paper, the following conclusions can be made: 1) laser processing can be applied for the purpose of fi nal ( fi nishing) processing, because it reduces the surface roughness of the milled billet made of D16 alloy by 23.8 %, and the ground one – by 6.6 %; 2) despite the fact that the decrease in roughness after processing the grounded workpiece is insigni fi cant, it is possible that the applied modes were not optimal for these conditions. Therefore, further research should be directed to the de fi nition of such modes, as well as to the establishment of physical processes in the processing zone and its impact on the workpiece. For citation: Kisel’ A.G., Belan D.Yu., Toder G.B. Investigation of the possibility of fi nishing laser processing of aluminum alloy D16 workpieces. Obrabotka metallov (tekhnologiya, oborudovanie, instrumenty) = Metal Working and Material Science , 2020, vol. 22, no. 3, pp. 33–43. DOI: 10.17212/1994-6309-2020-22.3-33-43. (In Russian). ______ * Corresponding author Kisel’Anton G., Ph.D. (Engineering), Associate Professor Omsk State Technical University 11 Prospekt Mira, 644050, Omsk, Russian Federation Tel.: +7 (999) 458-08-25, e-mail: kisel1988@mail.ru