Biomedical Titanium alloy prostheses manufacturing by means of Superplastic and Incremental Forming processes
The present work collects some results of the three-years Research Program “BioForming“, funded by the Italian Ministry of Education (MIUR) and aimed to investigate the possibility of using flexible sheet forming processes, i.e. Super Plastic Forming (SPF) and Single Point Incremental Forming (SPIF)...
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| Format: | Article |
| Language: | English |
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EDP Sciences
2016-01-01
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| Series: | MATEC Web of Conferences |
| Online Access: | http://dx.doi.org/10.1051/matecconf/20168015007 |
| _version_ | 1818619590308003840 |
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| author | Piccininni Antonio Gagliardi Francesco Guglielmi Pasquale De Napoli Luigi Ambrogio Giuseppina Sorgente Donato Palumbo Gianfranco |
| author_facet | Piccininni Antonio Gagliardi Francesco Guglielmi Pasquale De Napoli Luigi Ambrogio Giuseppina Sorgente Donato Palumbo Gianfranco |
| author_sort | Piccininni Antonio |
| collection | DOAJ |
| description | The present work collects some results of the three-years Research Program “BioForming“, funded by the Italian Ministry of Education (MIUR) and aimed to investigate the possibility of using flexible sheet forming processes, i.e. Super Plastic Forming (SPF) and Single Point Incremental Forming (SPIF), for the manufacturing of patient-oriented titanium prostheses. The prosthetic implants used as case studies were from the skull; in particular, two different Ti alloys and geometries were considered: one to be produced in Ti-Gr23 by SPF and one to be produced in Ti-Gr2 by SPIF. Numerical simulations implementing material behaviours evaluated by characterization tests were conducted in order to design both the manufacturing processes. Subsequently, experimental tests were carried out implementing numerical results in terms of: (i) gas pressure profile able to determine a constant (and optimal) strain rate during the SPF process; (ii) tool path able to avoid rupture during the SPIF process. Post forming characteristics of the prostheses in terms of thickness distributions were measured and compared to data from simulations for validation purposes. A good correlation between numerical and experimental thickness distributions has been obtained; in addition, the possibility of successfully adopting both the SPF and the SPIF processes for the manufacturing of prostheses has been demonstrated. |
| first_indexed | 2024-12-16T17:39:54Z |
| format | Article |
| id | doaj.art-0c38a3394d3a4a2896703dbd6999e76a |
| institution | Directory Open Access Journal |
| issn | 2261-236X |
| language | English |
| last_indexed | 2024-12-16T17:39:54Z |
| publishDate | 2016-01-01 |
| publisher | EDP Sciences |
| record_format | Article |
| series | MATEC Web of Conferences |
| spelling | doaj.art-0c38a3394d3a4a2896703dbd6999e76a2022-12-21T22:22:37ZengEDP SciencesMATEC Web of Conferences2261-236X2016-01-01801500710.1051/matecconf/20168015007matecconf_numi2016_15007Biomedical Titanium alloy prostheses manufacturing by means of Superplastic and Incremental Forming processesPiccininni Antonio0Gagliardi Francesco1Guglielmi Pasquale2De Napoli Luigi3Ambrogio Giuseppina4Sorgente Donato5Palumbo Gianfranco6Politecnico di Bari, Department of Mechanics, Mathematics and ManagementUniversità della Calabria, Dipartimento di Meccanica Energia e GestionalePolitecnico di Bari, Department of Mechanics, Mathematics and ManagementUniversità della Calabria, Dipartimento di Meccanica Energia e GestionaleUniversità della Calabria, Dipartimento di Meccanica Energia e GestionalePolitecnico di Bari, Department of Mechanics, Mathematics and ManagementPolitecnico di Bari, Department of Mechanics, Mathematics and ManagementThe present work collects some results of the three-years Research Program “BioForming“, funded by the Italian Ministry of Education (MIUR) and aimed to investigate the possibility of using flexible sheet forming processes, i.e. Super Plastic Forming (SPF) and Single Point Incremental Forming (SPIF), for the manufacturing of patient-oriented titanium prostheses. The prosthetic implants used as case studies were from the skull; in particular, two different Ti alloys and geometries were considered: one to be produced in Ti-Gr23 by SPF and one to be produced in Ti-Gr2 by SPIF. Numerical simulations implementing material behaviours evaluated by characterization tests were conducted in order to design both the manufacturing processes. Subsequently, experimental tests were carried out implementing numerical results in terms of: (i) gas pressure profile able to determine a constant (and optimal) strain rate during the SPF process; (ii) tool path able to avoid rupture during the SPIF process. Post forming characteristics of the prostheses in terms of thickness distributions were measured and compared to data from simulations for validation purposes. A good correlation between numerical and experimental thickness distributions has been obtained; in addition, the possibility of successfully adopting both the SPF and the SPIF processes for the manufacturing of prostheses has been demonstrated.http://dx.doi.org/10.1051/matecconf/20168015007 |
| spellingShingle | Piccininni Antonio Gagliardi Francesco Guglielmi Pasquale De Napoli Luigi Ambrogio Giuseppina Sorgente Donato Palumbo Gianfranco Biomedical Titanium alloy prostheses manufacturing by means of Superplastic and Incremental Forming processes MATEC Web of Conferences |
| title | Biomedical Titanium alloy prostheses manufacturing by means of Superplastic and Incremental Forming processes |
| title_full | Biomedical Titanium alloy prostheses manufacturing by means of Superplastic and Incremental Forming processes |
| title_fullStr | Biomedical Titanium alloy prostheses manufacturing by means of Superplastic and Incremental Forming processes |
| title_full_unstemmed | Biomedical Titanium alloy prostheses manufacturing by means of Superplastic and Incremental Forming processes |
| title_short | Biomedical Titanium alloy prostheses manufacturing by means of Superplastic and Incremental Forming processes |
| title_sort | biomedical titanium alloy prostheses manufacturing by means of superplastic and incremental forming processes |
| url | http://dx.doi.org/10.1051/matecconf/20168015007 |
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