Microstructural and Mechanical Properties of CAP-WAAM Single-Track Al5356 Specimens of Differing Scale
The mass production of metallic components requires high agility in the working process conditioned by the necessity of building details of different shapes and sizes. Changing the size of the components theoretically influences the thermal dissipation capability of the same, which could lead to a c...
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| Format: | Article |
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MDPI AG
2024-01-01
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| Series: | Machines |
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| Online Access: | https://www.mdpi.com/2075-1702/12/1/72 |
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| author | Georgi Kotlarski Maria Ormanova Alexander Nikitin Iuliia Morozova Ralf Ossenbrink Vesselin Michailov Nikolay Doynov Stefan Valkov |
| author_facet | Georgi Kotlarski Maria Ormanova Alexander Nikitin Iuliia Morozova Ralf Ossenbrink Vesselin Michailov Nikolay Doynov Stefan Valkov |
| author_sort | Georgi Kotlarski |
| collection | DOAJ |
| description | The mass production of metallic components requires high agility in the working process conditioned by the necessity of building details of different shapes and sizes. Changing the size of the components theoretically influences the thermal dissipation capability of the same, which could lead to a change in their structure and mechanical properties. This is particularly important when aluminum alloys are concerned. For this reason, two Al5356 single-track specimens were built using the same technological conditions of layer deposition by varying only their geometrical size. In all cases, the specimens were wire and arc additively manufactured (WAAM) using a process based on gas metal arc welding (GMAW) in the cold arc pulse mode (CAP). The structure of both specimens was studied and defects along their surfaces were detected in the form of micro-pores and micro-cracks. A high concentration of undissolved Mg particles was also detected, along with some standalone Si particles. Uniformity in the build-up process was achieved, which led to the formation of nearly identical structures in the specimens. Subsequently, the resultant mechanical properties were also highly comparable. This indicates that the geometry-related variation in thermal conditions has an insignificant influence on the component’s structure and properties. |
| first_indexed | 2024-03-08T10:43:00Z |
| format | Article |
| id | doaj.art-25d76b9f9bd84024a06068eab5408130 |
| institution | Directory Open Access Journal |
| issn | 2075-1702 |
| language | English |
| last_indexed | 2024-03-08T10:43:00Z |
| publishDate | 2024-01-01 |
| publisher | MDPI AG |
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| series | Machines |
| spelling | doaj.art-25d76b9f9bd84024a06068eab54081302024-01-26T17:24:45ZengMDPI AGMachines2075-17022024-01-011217210.3390/machines12010072Microstructural and Mechanical Properties of CAP-WAAM Single-Track Al5356 Specimens of Differing ScaleGeorgi Kotlarski0Maria Ormanova1Alexander Nikitin2Iuliia Morozova3Ralf Ossenbrink4Vesselin Michailov5Nikolay Doynov6Stefan Valkov7Institute of Electronics, Bulgarian Academy of Sciences, Tzarigradsko Chaussee 72, 1784 Sofia, BulgariaInstitute of Electronics, Bulgarian Academy of Sciences, Tzarigradsko Chaussee 72, 1784 Sofia, BulgariaDepartment of Joining and Welding Technology, Brandenburg University of Technology, Platz der Deutschen Einheit 1, 03046 Cottbus, GermanyDepartment of Joining and Welding Technology, Brandenburg University of Technology, Platz der Deutschen Einheit 1, 03046 Cottbus, GermanyDepartment of Joining and Welding Technology, Brandenburg University of Technology, Platz der Deutschen Einheit 1, 03046 Cottbus, GermanyDepartment of Joining and Welding Technology, Brandenburg University of Technology, Platz der Deutschen Einheit 1, 03046 Cottbus, GermanyDepartment of Joining and Welding Technology, Brandenburg University of Technology, Platz der Deutschen Einheit 1, 03046 Cottbus, GermanyInstitute of Electronics, Bulgarian Academy of Sciences, Tzarigradsko Chaussee 72, 1784 Sofia, BulgariaThe mass production of metallic components requires high agility in the working process conditioned by the necessity of building details of different shapes and sizes. Changing the size of the components theoretically influences the thermal dissipation capability of the same, which could lead to a change in their structure and mechanical properties. This is particularly important when aluminum alloys are concerned. For this reason, two Al5356 single-track specimens were built using the same technological conditions of layer deposition by varying only their geometrical size. In all cases, the specimens were wire and arc additively manufactured (WAAM) using a process based on gas metal arc welding (GMAW) in the cold arc pulse mode (CAP). The structure of both specimens was studied and defects along their surfaces were detected in the form of micro-pores and micro-cracks. A high concentration of undissolved Mg particles was also detected, along with some standalone Si particles. Uniformity in the build-up process was achieved, which led to the formation of nearly identical structures in the specimens. Subsequently, the resultant mechanical properties were also highly comparable. This indicates that the geometry-related variation in thermal conditions has an insignificant influence on the component’s structure and properties.https://www.mdpi.com/2075-1702/12/1/72microstructureWAAMcold arc pulse (CAP)AlMg5CrAl5356single-track |
| spellingShingle | Georgi Kotlarski Maria Ormanova Alexander Nikitin Iuliia Morozova Ralf Ossenbrink Vesselin Michailov Nikolay Doynov Stefan Valkov Microstructural and Mechanical Properties of CAP-WAAM Single-Track Al5356 Specimens of Differing Scale Machines microstructure WAAM cold arc pulse (CAP) AlMg5Cr Al5356 single-track |
| title | Microstructural and Mechanical Properties of CAP-WAAM Single-Track Al5356 Specimens of Differing Scale |
| title_full | Microstructural and Mechanical Properties of CAP-WAAM Single-Track Al5356 Specimens of Differing Scale |
| title_fullStr | Microstructural and Mechanical Properties of CAP-WAAM Single-Track Al5356 Specimens of Differing Scale |
| title_full_unstemmed | Microstructural and Mechanical Properties of CAP-WAAM Single-Track Al5356 Specimens of Differing Scale |
| title_short | Microstructural and Mechanical Properties of CAP-WAAM Single-Track Al5356 Specimens of Differing Scale |
| title_sort | microstructural and mechanical properties of cap waam single track al5356 specimens of differing scale |
| topic | microstructure WAAM cold arc pulse (CAP) AlMg5Cr Al5356 single-track |
| url | https://www.mdpi.com/2075-1702/12/1/72 |
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