Number of the records: 1
Parameters optimization of Ti6Al4V alloy welding by pulsed Nd:YAG laser
- 1.
SYSNO ASEP 0579525 Document Type C - Proceedings Paper (int. conf.) R&D Document Type O - Ostatní Title Parameters optimization of Ti6Al4V alloy welding by pulsed Nd:YAG laser Author(s) Chmelíčková, Hana (FZU-D) RID
Havelková, Martina (FZU-D) RID, ORCID
Hrubantová Písařiková, Aneta (FZU-D) ORCID
Jílek, Vlastimil (FZU-D)
Václavek, Lukáš (FZU-D) ORCIDNumber of authors 5 Article number 149 Source Title Lasers in Manufacturing Conference 2023 - Proceedings. - Mnichov : WLT, 2023 Number of pages 9 s. Publication form Online - E Action Lasers in Manufacturing Conference (LiM 2023) Event date 26.06.2023 - 29.06.2023 VEvent location Online Country DE - Germany Event type WRD Language eng - English Country DE - Germany Keywords laser welding ; Ti6Al4V ; FEM model ; nanoindentation ; XRD analysis Subject RIV JP - Industrial Processing OECD category Materials engineering R&D Projects LM2023032 GA MŠMT - Ministry of Education, Youth and Sports (MEYS) Institutional support FZU-D - RVO:68378271 Annotation The butt welds of thin Ti6Al4V alloy sheets using a pulsed Nd:YAG laser were investigated to determine the optimal value of peak power and pulse length for creating sound welds. The width of the weld face and the depth of penetration were found to be proportional to increasing peak power and decreasing pulse length. The weld surfaces were measured using a contact profilometer. The influence of laser pulse overlap on the thermal cycle in representative point and cross-section planes was demonstrated by a numerical model. Repeated melting and heating above the transformation temperature by previous and following pulses probably caused the occurrence of a mixed microstructure of α´martensite and massive α in the fusion zone and near the heat-affected zone. Nanohardness tests on the transverse cross-sections showed that the fusion zone was approximately 50% harder than the base material. Workplace Institute of Physics Contact Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Year of Publishing 2024
Number of the records: 1