Abstract
The paper presents the results of metallographic studies of the geometric parameters of hardened zones depending on the laser processing mode. Based on the results of regression analysis, plots were constructed for surfaces showing the effect of the power, velocity, and transverse oscillations of the beam on the width and depth of hardened zones. High-frequency beam scanning increases the performance of laser hardening by 1.6–2.5 times.
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Matveev, Yu.I., Lazernye tekhnologii v sudovom mashinostroenii (Laser Technology in Marine Engineering), N. Novgorod: GOU VPO VGAVT, 2003.
Biryukov, V.P. and Dozorov, A.V., Laser systems for hardening and surfacing of parts and for precise sheet layout, J. Mach. Manuf. Reliab., 2006, no. 1, pp. 46–50.
Biryukov, V.P., Drozdov, Yu.N., Gudushauri, E.G., Mikhailin, B.N., and Fishkov, A.A., The method of quenching the surface layers of flat long steel products, RF Patent No. 2449028, 2012.
Biryukov, V.P. and Matytsyn, A.P., Hardening of machine parts with a scanning laser beam, in Primenenie lazerov v narodnom khozyaistve, Tezisy dokladov (Proceedings of the Conference on Laser Application in the National Economy, Dec. 4–8, 1989), Shatura: NITsTLAN, 1989, p. 82.
Shlegel', A.N., Selection of rational modes of laser hardening of the working edges of cast-iron molds for glassforming machines, Vestn. MGTU STANKIN, 2011, no. 3, pp. 106–109.
Morozov, V.V., Yugov, V.I., and Shlegel’, A.N., Researches of wear capability of hardened by the laser radiation mould details edges for forming glass, Uprochn. Tekhnol. Pokryt., 2007, no. 7, pp. 52–56.
Lapteva, V.G., Kuksenova, L.I., and Alisin, V.V., Effect of laser treatment on the case structure of constructional steels and their wear resistance, J. Mach. Manuf. Reliab., 2009, vol. 38, no. 2, pp. 177–182.
Kuksenova, L.I., Lapteva, V.G., Kolmakov, A.G., et al., Metody ispytanii na trenie i iznos (Methods of Friction and Wear Testing), Moscow: Intermet Inzhiniring, 2001.
Kuz'min, S.D., Tarasova, T.V., Belashova, I.S., et al., Influence of the degree of discrete laser treatment on wear resistance of steels and alloys, Uprochn. Tekhnol. Pokryt., 2016, no. 9, pp. 9–14.
Pellizzari, M. and de Flora, M.G., Influence of laser hardening on the tribological properties of forged steel for hot rolls, Wear, 2011, vol. 271, pp. 2402–2411.
Ion, J., Laser Processing of Engineering Materials: Principles, Procedure and Industrial Application, Amsterdam: Elsevier, Butterworth-Heinemann, 2005.
Bogdanov, A.V., Grezev, N.V., Shmelev, S.A., et al., Wheel steel strengthening with fiber lasers, Naukoemk. Tekhnol. Mashinostr., 2016, no. 9, pp. 30–37.
Shariff, S.M., Pal, T.K., Padmanabham, G., and Joshi, S.V., Influence of chemical composition and prior microstructure on diode laser hardening of railroad steels, Surf. Coat. Technol., 2013, vol. 228, pp. 14–26.
Soriano, C., Leund, J., Lambarri, J., Navas, V. G., and Sanz, C., Effect of laser surface hardening on the microstructure, hardness and residual stresses of austempered ductile iron grades, Appl. Surf. Sci., 2011, vol. 257, pp. 7101–7106.
Evdokimov, Yu.A., Kolesnikov, V.I., and Teterin, A.I., Planirovanie i analiz eksperimentov pri reshenii zadach treniya i iznosa (Planning and Analysis of Experiments in Solving Friction and Wear Problems), Moscow: Nauka, 1980.
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Original Russian Text © V.P. Biryukov, 2018, published in Problemy Mashinostroeniya i Nadezhnosti Mashin, 2018, No. 6.
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Biryukov, V.P. Effect of Laser Strengthening and Beam Defocusing on the Geometrical Parameters of Hardened Zones. J. Mach. Manuf. Reliab. 47, 550–556 (2018). https://doi.org/10.3103/S1052618818660019
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DOI: https://doi.org/10.3103/S1052618818660019