| Titre : |
Improving the thickness distribution of parts with hybrid thermoforming |
| Type de document : |
texte imprimé |
| Auteurs : |
Fernando M. Duarte, Auteur ; Catarina G. Ribeiro, Auteur ; João G. Ferreira, Auteur ; SÃlvia A. Forte, Auteur ; Jose A. Covas, Auteur |
| Année de publication : |
2022 |
| Article en page(s) : |
p. 396-405 |
| Note générale : |
Bibliogr. |
| Langues : |
Anglais (eng) |
| Catégories : |
Etat fondu (matériaux)
FilamentsFibre de longueur infinie ou extrême comme celle qu'on trouve dans la soie à l'état naturel. Les fibres manufacturées sont extrudées en filaments qui sont transformés en fils continus, en fibres courtes ou en câbles.
Lasers -- Applications industrielles
Matériaux -- Epaisseur
Matières plastiques -- Thermoformage
Usinage par laser
|
| Index. décimale : |
668.4 Plastiques, vinyles |
| Résumé : |
With the aim of improving the thickness gradient of thermoformed parts, and thus increase their performance and/or reduce their weight, the concept of hybrid thermoforming is introduced, whereby local thickness differences in extruded sheets are created prior to thermoforming. Material is removed by CO2 ablation or 3D printing of an over-thickness at specific locations of sheets previously extruded. The feasibility and potential usefulness of the approach is explored experimentally for the production of a truncated conical cup, since this is a well-characterized application. The conventional thickness distributions obtained by conventional vacuum forming are significantly changed with the new strategy and can be tuned by adequately selecting the locations and amount of material do be removed and/or added. |
| Note de contenu : |
The concept of hybrid thermoforming
Experimental
Results and discussion : Removing material approach - Adding material approach |
| DOI : |
https://doi.org/10.1515/ipp-2022-4222 |
| En ligne : |
https://drive.google.com/file/d/1_k1niD222mz_teTTN-MJkmmodAET_QPd/view?usp=shari [...] |
| Format de la ressource électronique : |
Pdf |
| Permalink : |
https://e-campus.itech.fr/pmb/opac_css/index.php?lvl=notice_display&id=37915 |
in INTERNATIONAL POLYMER PROCESSING > Vol. 37, N° 4 (2022) . - p. 396-405
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Improving the thickness distribution of parts with hybrid thermoforming in INTERNATIONAL POLYMER PROCESSING, Vol. 37, N° 4 (2022)
