Moscow, Moscow, Russian Federation
Moskva, Moscow, Russian Federation
Moscow, Moscow, Russian Federation
Computer modeling of the thermal behavior of a thin-walled part made of austenitic 316L stainless steel, grown by coaxial laser melting with variable and constant laser power, has been simulated. The conducted work was aimed at investigating the effect of the number of weld deposit layers and studying the influence of bending radius in heat patterns of the growing zone, taking into account a molten pool volume.
coaxial laser melting, thin-walled part, computer modeling, thermal cycle, molten pool volume
1. Grigoryants, A.G., Shiganov, I.N., Misyurov, A.I., Tre-tyakov, R.S. Laser additive technologies in mechanical engi-neering. Moscow: Publ. House of Bauman Moscow State Technical University, 2018
2. Shojarazavi, R. Additive construction with direct laser deposition, First. Tehran: Malek-Ashtar University of Tech-nology, 2019
3. Direct Laser Fabrication process with coaxial powder projection of 316L steel. Geometrical characteristics and mi-crostructure characterization of wall structures / H.El. Cheikh, B. Courant et al. // Opt. Lasers Eng. - 2012. - vol. 50, no. 12, pp. 1779-1784.
4. Toyserkani, E., Khajepour, A., Corbin, S. Laser Clad-ding // Laser Cladding, 2017. vol. 11, no. 2.
5. Numerical simulation of thermal behavior during laser direct metal deposition / G. Zhu, A. Zhang et al. // Int. J. Adv. Manuf. Technol. 2011. - vol. 55. - no. 9-12, pp. 945-954.
6. Liu, Y., Zhang, J., Pang, Z. Numerical and experimental investigation into the subsequent thermal cycling during selec-tive laser melting of multi-layer 316L stainless steel // Opt. Laser Technol., 2018, vol. 98, pp. 23-32.
7. Miandzhi, Z., Kholopov, A.A. Numerical and experi-mental studies of thermal processes in the cultivation of thin-walled parts by the method of coaxial laser melting of metals made of 316L stainless steel / News of higher educational in-stitutions, Mashinostroenie, 2021, Issue 7, pp. 19-29.
8. Khomenko, V. Adjoint processes of heat transfer, con-vection and microstructure formation during laser surfacing with coaxial feeding of metal powders. Extended Abstract of Ph.D. Thesis, Moscow, 2019.
9. Miandzhi, Z., Taxants, M.V., Kholopov, A.A. Regres-sion models of technological process indicators for layer-by-layer cultivation of a 316L steel powder product by coaxial laser melting / News of higher educational institutions, Mashi-nostroenie, 2021, Issue 7, pp. 19-29.
10. Zahra, M., Kholopov, A.A., Misyurov, A.I., Melniko-va, M.A. Features of obtaining thin-walled structures from stainless steel by coaxial laser melting. / Electron beam weld-ing and related technologies. Proceedings of the Third Interna-tional Conference, 2020, pp. 350-357.
