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Revisiting formability and failure of polymeric sheets deformed by Single Point Incremental Forming

Single Point Incremental Forming (SPIF) has been intensively investigated in the last two decades. It is a versatile and economical manufacturing technology that is especially viable for small and medium-sized batches, with a great potential for manufacturing highly customized parts. One of the most important advantages of this technology is the greater formability it can attain compared to conventional sheet forming processes. The aim of this paper is to evaluate the overall formability of a series of polymeric sheets deformed by SPIF process, including biocompatible and non-biocompatible materials, while considering a variety of process parameters including spindle speed which, in previous studies on polymers formed by Incremental Sheet Forming (ISF), has been shown to be the most influential process parameter. The results show that variations in spindle speed caused a variation in the forming temperature and the material forming limits. For a better understanding of the deformation mechanism and the failure process of polymers during SPIF, a fractographic analysis using optical microscopy was carried out, as well as a Differential Scanning Calorimetry (DSC) analysis to determine the glass transition and melting temperatures and the degree of crystallinity of the polymers

The research leading to these results has received funding from the University of Girona (MPCUdG2016/036) and the Spanish Ministry of Education (DPI2016-77156-R and DPI2015-64047-R)

© Polymer Degradation and Stability, 2017, vol. 144, p. 366-377

Elsevier

Autor: Bagudanch Frigolé, Isabel
Centeno, Gabriel
Vallellano, C.
Garcia-Romeu, Maria Luisa
Data: octubre 2017
Resum: Single Point Incremental Forming (SPIF) has been intensively investigated in the last two decades. It is a versatile and economical manufacturing technology that is especially viable for small and medium-sized batches, with a great potential for manufacturing highly customized parts. One of the most important advantages of this technology is the greater formability it can attain compared to conventional sheet forming processes. The aim of this paper is to evaluate the overall formability of a series of polymeric sheets deformed by SPIF process, including biocompatible and non-biocompatible materials, while considering a variety of process parameters including spindle speed which, in previous studies on polymers formed by Incremental Sheet Forming (ISF), has been shown to be the most influential process parameter. The results show that variations in spindle speed caused a variation in the forming temperature and the material forming limits. For a better understanding of the deformation mechanism and the failure process of polymers during SPIF, a fractographic analysis using optical microscopy was carried out, as well as a Differential Scanning Calorimetry (DSC) analysis to determine the glass transition and melting temperatures and the degree of crystallinity of the polymers
The research leading to these results has received funding from the University of Girona (MPCUdG2016/036) and the Spanish Ministry of Education (DPI2016-77156-R and DPI2015-64047-R)
Format: application/pdf
Cita: https://doi.org/10.1016/j.polymdegradstab.2017.08.021
ISSN: 0141-3910
Accés al document: http://hdl.handle.net/10256/14451
Llenguatge: eng
Editor: Elsevier
Col·lecció: MINECO/PE 2016-2020/DPI2016-77156-R
Reproducció digital del document publicat a: https://doi.org/10.1016/j.polymdegradstab.2017.08.021
Articles publicats (D-EMCI)
És part de: © Polymer Degradation and Stability, 2017, vol. 144, p. 366-377
Drets: Tots els drets reservats
Matèria: Formability
Polímers
Polymers
Títol: Revisiting formability and failure of polymeric sheets deformed by Single Point Incremental Forming
Tipus: info:eu-repo/semantics/article
Repositori: DUGiDocs

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