Accuracy and Sheet Thinning Improvement of Deep Titanium Alloy Part with Warm Incremental Sheet-Forming Process
Incremental forming is a recent forming process that allows a sheet to be locally deformed with a hemispherical tool in order to gradually shape it. Despite good lubrication between the sheet and the tip of the smooth hemisphere tool, ductility often occurs, limiting the formability of titanium allo...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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MDPI AG
2021-11-01
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| Series: | Journal of Manufacturing and Materials Processing |
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| Online Access: | https://www.mdpi.com/2504-4494/5/4/122 |
| _version_ | 1797503346997723136 |
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| author | Badreddine Saidi Laurence Giraud Moreau Abel Cherouat Rachid Nasri |
| author_facet | Badreddine Saidi Laurence Giraud Moreau Abel Cherouat Rachid Nasri |
| author_sort | Badreddine Saidi |
| collection | DOAJ |
| description | Incremental forming is a recent forming process that allows a sheet to be locally deformed with a hemispherical tool in order to gradually shape it. Despite good lubrication between the sheet and the tip of the smooth hemisphere tool, ductility often occurs, limiting the formability of titanium alloys due to the geometrical inaccuracy of the parts and the inability to form parts with a large depth and wall angle. Several technical solutions are proposed in the literature to increase the working temperature, allowing improvement in the titanium alloys’ formability and reducing the sheet thinning, plastic instability, and failure localization. An experimental procedure and numerical simulation were performed in this study to improve the warm single-point incremental sheet forming of a deep truncated cone in Ti-6Al-4V titanium alloy based on the use of heating cartridges. The effect of the depth part (two experiments with a truncated cone having a depth of 40 and 60 mm) at hot temperature (440 °C) on the thickness distribution and sheet shape accuracy are performed. Results show that the formability is significantly improved with the heating to produce a deep part. Small errors are observed between experimental and theoretical profiles. Moreover, errors between experimental and numerical displacements are less than 6%, which shows that the Finite Element (FE) model gives accurate predictions for titanium alloy deep truncated cones. |
| first_indexed | 2024-03-10T03:49:18Z |
| format | Article |
| id | doaj.art-f0e0071345e44d3090d078713b8cb378 |
| institution | Directory Open Access Journal |
| issn | 2504-4494 |
| language | English |
| last_indexed | 2024-03-10T03:49:18Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Journal of Manufacturing and Materials Processing |
| spelling | doaj.art-f0e0071345e44d3090d078713b8cb3782023-11-23T09:01:37ZengMDPI AGJournal of Manufacturing and Materials Processing2504-44942021-11-015412210.3390/jmmp5040122Accuracy and Sheet Thinning Improvement of Deep Titanium Alloy Part with Warm Incremental Sheet-Forming ProcessBadreddine Saidi0Laurence Giraud Moreau1Abel Cherouat2Rachid Nasri3Applied Mechanics and Engineering Laboratory (LR-11-ES19), University of Tunis El Manar, ENIT, Le Belvédère, Tunis BP 37-1002, TunisiaUR-LASMIS, University of Technology of Troyes, 12 rue Marie Curie, 10004 Troyes, FranceUR-GAMMA3, University of Technology of Troyes, 12 rue Marie Curie, 10004 Troyes, FranceApplied Mechanics and Engineering Laboratory (LR-11-ES19), University of Tunis El Manar, ENIT, Le Belvédère, Tunis BP 37-1002, TunisiaIncremental forming is a recent forming process that allows a sheet to be locally deformed with a hemispherical tool in order to gradually shape it. Despite good lubrication between the sheet and the tip of the smooth hemisphere tool, ductility often occurs, limiting the formability of titanium alloys due to the geometrical inaccuracy of the parts and the inability to form parts with a large depth and wall angle. Several technical solutions are proposed in the literature to increase the working temperature, allowing improvement in the titanium alloys’ formability and reducing the sheet thinning, plastic instability, and failure localization. An experimental procedure and numerical simulation were performed in this study to improve the warm single-point incremental sheet forming of a deep truncated cone in Ti-6Al-4V titanium alloy based on the use of heating cartridges. The effect of the depth part (two experiments with a truncated cone having a depth of 40 and 60 mm) at hot temperature (440 °C) on the thickness distribution and sheet shape accuracy are performed. Results show that the formability is significantly improved with the heating to produce a deep part. Small errors are observed between experimental and theoretical profiles. Moreover, errors between experimental and numerical displacements are less than 6%, which shows that the Finite Element (FE) model gives accurate predictions for titanium alloy deep truncated cones.https://www.mdpi.com/2504-4494/5/4/122warm single-point incremental forming (SPIF)truncated conetemperature effectFE analysis |
| spellingShingle | Badreddine Saidi Laurence Giraud Moreau Abel Cherouat Rachid Nasri Accuracy and Sheet Thinning Improvement of Deep Titanium Alloy Part with Warm Incremental Sheet-Forming Process Journal of Manufacturing and Materials Processing warm single-point incremental forming (SPIF) truncated cone temperature effect FE analysis |
| title | Accuracy and Sheet Thinning Improvement of Deep Titanium Alloy Part with Warm Incremental Sheet-Forming Process |
| title_full | Accuracy and Sheet Thinning Improvement of Deep Titanium Alloy Part with Warm Incremental Sheet-Forming Process |
| title_fullStr | Accuracy and Sheet Thinning Improvement of Deep Titanium Alloy Part with Warm Incremental Sheet-Forming Process |
| title_full_unstemmed | Accuracy and Sheet Thinning Improvement of Deep Titanium Alloy Part with Warm Incremental Sheet-Forming Process |
| title_short | Accuracy and Sheet Thinning Improvement of Deep Titanium Alloy Part with Warm Incremental Sheet-Forming Process |
| title_sort | accuracy and sheet thinning improvement of deep titanium alloy part with warm incremental sheet forming process |
| topic | warm single-point incremental forming (SPIF) truncated cone temperature effect FE analysis |
| url | https://www.mdpi.com/2504-4494/5/4/122 |
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