Enhancing directed energy deposited AL5356 through in situ workpiece vibrations

Imširović, Mirza (author), Trdan, Uroš (author), Klobčar, Damjan (author), Bračun, Drago (author), Nagode, Aleš (author)

This study explores an innovative method to enhance Directed Energy Deposition (DED) of aluminum 5356 products by integrating an electromagnetic vibration system into the DED setup. The application of vibrations significantly improved surface quality, reducing surface waviness and increasing building efficiency by 14%, from 78.5% to 92.25%.Gas porosity was reduced from 1.5 ± 0.04% in as-built (AB) components to 0.34 ± 0.07% in vibration-assisted (VA) parts. Tensile tests showed a marked reduction in anisotropy, with the tensile strength deviation between the x and z directions decreasing to less than 0.4% for vibration-assisted samples, compared to 7.9% for as-built ones. Additionally, secondary phase analysis revealed a homogenization effect, with magnesium- and iron-rich precipitates displaying a finer dispersion (3.57 ± 3.42 μm²) compared to 11.28 ± 12.49 μm² in as-built parts. Overall, the findings highlight the potential of vibration-assisted DED to improve part properties, reduce defects, and advance the DED manufacturing process.

• Language: English
• Keywords: directed energy deposition (DED), vibrations, residual stress, gas porosity, grain refinement, aluminium alloys
• Work type: Article
• Typology: 1.08 - Published Scientific Conference Contribution
• Organization: FS - Faculty of Mechanical Engineering
• Publication status: Published
• Publication version: Version of Record
• Publication date: 15.12.2024
• Year: 2024
• Number of pages: Str. 43-47
• Numbering: Vol. 49, no. 2
• PID: 20.500.12556/RUL-166519
• UDC: 620.1:621.3
• ISSN on article: 2620-147X
• DOI: 10.24867/ATM-2024-2-005
• COBISS.SI-ID: 222618627

Note

PDF format

• Publication date in RUL: 16.01.2025

Record is a part of a journal

• Title: Advanced technologies and materials : glavni urednik Mladomir Milutinović
• Publisher: University Novi Sad, Faculty of Technical Sciences
• ISSN: 2620-147X
• COBISS.SI-ID: 270926604

Licences

• License: CC BY-NC 4.0, Creative Commons Attribution-NonCommercial 4.0 International
• Link: http://creativecommons.org/licenses/by-nc/4.0/
• Description: A creative commons license that bans commercial use, but the users don’t have to license their derivative works on the same terms.

Secondary language

• Language: Slovenian
• Keywords: usmerjeno nanašanje z energijo, vibracije, zaostale napetosti, plinska poroznost, udrobnjevanje kristalnih zrn, aluminijeve zlitine