Geometrical Accuracy Analysis of Ti-6Al-4V Trusses Manufactured by Electron Beam Melting Process
Lattice structures made of metal materials are very interesting since their structural efficiency is elevated, thanks to their good mechanical properties and light weight. Additive manufacturing processes are appropriate to produce those structures. However, the peculiar geometry of lattice structur...
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| Format: | Article |
| Language: | English |
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MDPI AG
2023-08-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/13/8/1454 |
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| author | Costanzo Bellini Rosario Borrelli Francesco Di Caprio Vittorio Di Cocco Stefania Franchitti Francesco Iacoviello Carmine Pirozzi Luca Sorrentino |
| author_facet | Costanzo Bellini Rosario Borrelli Francesco Di Caprio Vittorio Di Cocco Stefania Franchitti Francesco Iacoviello Carmine Pirozzi Luca Sorrentino |
| author_sort | Costanzo Bellini |
| collection | DOAJ |
| description | Lattice structures made of metal materials are very interesting since their structural efficiency is elevated, thanks to their good mechanical properties and light weight. Additive manufacturing processes are appropriate to produce those structures. However, the peculiar geometry of lattice structures causes the manufacturing process to create rather significant unconformities, affecting the structures’ mechanical properties. In this article, small trusses with different diameters were produced through electron beam melting (EBM) by varying the process parameters, like the orientation and the position in the build chamber. Then, their diameter was evaluated and compared with the nominal one. It was found that the orientation in the chamber was very influential on the geometrical error, as well as the nominal diameter, while the position in the building chamber was uninfluential. In particular, the highest deviation was found for the specimens oriented at 0° and those with a diameter of 1 mm. Moreover, a similar result was detected for the ovalisation of the truss section too. |
| first_indexed | 2024-03-10T23:44:58Z |
| format | Article |
| id | doaj.art-d1ddb1ede9414c99825134394d20edc0 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-10T23:44:58Z |
| publishDate | 2023-08-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-d1ddb1ede9414c99825134394d20edc02023-11-19T02:11:27ZengMDPI AGMetals2075-47012023-08-01138145410.3390/met13081454Geometrical Accuracy Analysis of Ti-6Al-4V Trusses Manufactured by Electron Beam Melting ProcessCostanzo Bellini0Rosario Borrelli1Francesco Di Caprio2Vittorio Di Cocco3Stefania Franchitti4Francesco Iacoviello5Carmine Pirozzi6Luca Sorrentino7Department of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, 03043 Cassino, ItalyCIRA—Italian Aerospace Research Centre, Via Maiorise, snc, 81043 Capua, ItalyCIRA—Italian Aerospace Research Centre, Via Maiorise, snc, 81043 Capua, ItalyDepartment of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, 03043 Cassino, ItalyCIRA—Italian Aerospace Research Centre, Via Maiorise, snc, 81043 Capua, ItalyDepartment of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, 03043 Cassino, ItalyCIRA—Italian Aerospace Research Centre, Via Maiorise, snc, 81043 Capua, ItalyDepartment of Civil and Mechanical Engineering, University of Cassino and Southern Lazio, 03043 Cassino, ItalyLattice structures made of metal materials are very interesting since their structural efficiency is elevated, thanks to their good mechanical properties and light weight. Additive manufacturing processes are appropriate to produce those structures. However, the peculiar geometry of lattice structures causes the manufacturing process to create rather significant unconformities, affecting the structures’ mechanical properties. In this article, small trusses with different diameters were produced through electron beam melting (EBM) by varying the process parameters, like the orientation and the position in the build chamber. Then, their diameter was evaluated and compared with the nominal one. It was found that the orientation in the chamber was very influential on the geometrical error, as well as the nominal diameter, while the position in the building chamber was uninfluential. In particular, the highest deviation was found for the specimens oriented at 0° and those with a diameter of 1 mm. Moreover, a similar result was detected for the ovalisation of the truss section too.https://www.mdpi.com/2075-4701/13/8/1454electron beam meltingtitaniumthin structuregeometrical accuracy |
| spellingShingle | Costanzo Bellini Rosario Borrelli Francesco Di Caprio Vittorio Di Cocco Stefania Franchitti Francesco Iacoviello Carmine Pirozzi Luca Sorrentino Geometrical Accuracy Analysis of Ti-6Al-4V Trusses Manufactured by Electron Beam Melting Process Metals electron beam melting titanium thin structure geometrical accuracy |
| title | Geometrical Accuracy Analysis of Ti-6Al-4V Trusses Manufactured by Electron Beam Melting Process |
| title_full | Geometrical Accuracy Analysis of Ti-6Al-4V Trusses Manufactured by Electron Beam Melting Process |
| title_fullStr | Geometrical Accuracy Analysis of Ti-6Al-4V Trusses Manufactured by Electron Beam Melting Process |
| title_full_unstemmed | Geometrical Accuracy Analysis of Ti-6Al-4V Trusses Manufactured by Electron Beam Melting Process |
| title_short | Geometrical Accuracy Analysis of Ti-6Al-4V Trusses Manufactured by Electron Beam Melting Process |
| title_sort | geometrical accuracy analysis of ti 6al 4v trusses manufactured by electron beam melting process |
| topic | electron beam melting titanium thin structure geometrical accuracy |
| url | https://www.mdpi.com/2075-4701/13/8/1454 |
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