Numerical and experimental analysis of the effect of volumetric energy absorption in powder layer on thermal-fluidic transport in selective laser melting of Ti6Al4V

AK Mishra, A Kumar - Optics & Laser Technology, 2019 - Elsevier
A volumetric heat source is used in numerical modeling of selective laser melting (SLM) of
Ti6Al4V powder. Single track and multi-track SLM simulations are performed by varying the …

Identification of a suitable volumetric heat source for modelling of selective laser melting of Ti6Al4V powder using numerical and experimental validation approach

AK Mishra, A Aggarwal, A Kumar, N Sinha - The International Journal of …, 2018 - Springer
Using a suitable heat source is crucial to correctly simulate the selective laser melting (SLM)
process as the heat source represents the absorbed heat energy, which governs the thermal …

New approach of true temperature restoration in optical diagnostics using IR-camera

I Zhirnov, C Protasov, D Kotoban, AV Gusarov… - Journal of Thermal …, 2017 - Springer
The laser treatment processes are specified due to the laser-matter interaction instabilities.
Modern additive manufacturing technologies such as selective laser melting provide layer …

Optical diagnostics of selective laser melting and monitoring of single-track formation

A Gusarov, D Kotoban, I Zhirnov - MATEC Web of …, 2017 - matec-conferences.org
The article presents the optical diagnostics results of the selective laser melting process of
single-track production. The track defects detection (such as balling effect, powder free zone …

Parametric Study of Inverse Heat Source Model Based on Molten Pool Morphology for Selective Laser Melting

L He, R Bai, Z Lei, S Yu, Z Guo, Y Xu, J Zhu… - Available at SSRN … - papers.ssrn.com
AbstractsIn the selective laser melting preparation process, an accurate description of the
temperature field is essential for improving the accuracy of finite element simulations of the …

The Study of Scan Speed and Laser Power Effects on the Molten Pool in Selective Laser Melting of Ti6Al4V Based on the Molten Motion Equations

SA Ghorashi, M Sadegh Yazdi… - AEROSPACE …, 2021 - maj.ihu.ac.ir
Selective laser melting (SLM) is a laser powder-bed fusion method that offers great
potentials in producing components with complex shapes and geometries. Process …

Monitoring of Single-Track Degradation in the Process of Selective Laser Melting

I Zhirnov, M Doubenskaia, D Kotoban - 2017 - repositories.lib.utexas.edu
Selective laser melting machines provide the optimal working parameters for manufacturing
during the process. However, the laser interaction with metal powder is an unstable. The …

Оптическая диагностика селективного лазерного плавления и контроль механизмов формирования единичного валика

АВ Гусаров, ДВ Котобан, ИВ Жирнов - Вестник современных …, 2017 - elibrary.ru
Статья представляет результаты оптической диагностики процесса формирования
единичного валика в процессе селективного лазерного плавления. Показано …