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Forming force and temperature effects on single point incremental forming of polyvinylchloride

Incremental Sheet Forming (ISF) is a technology that allows producing highly customized products at a reasonable manufacturing cost, and Single point incremental forming (SPIF) is one of the simplest ISF processes. In this sense, recent research works have revealed an increasing interest in forming thermoplastic materials by ISF. The present paper focuses on determining the influence of the main process parameters, i.e. the step down, spindle speed, feed rate, tool diameter and sheet thickness, on the maximum forming force. Maximum depth has been analyzed as a formability indicator and surface roughness has been also addressed. The results show a significant effect of the spindle speed in the ISF process of polymeric materials, not only on the maximum forming force but also on its formability, by means of the maximum depth reached, and on the surface roughness achieved. This is a consequent of the triggered increment of temperature obtained due to the friction between the tool and the sheet blank, as far as temperature variation is supposed to be the main factor causing the variation of the mechanical properties of thermoplastic polymers. The material used in this research work was polyvinylchloride (PVC), which becomes rubber-like with the increase of temperature as a consequence of its viscoelastic behaviour

The research leading to these results has received funding from the Spanish Government, DPI2012-36042. The authors would like to thank the support from the International Research Exchange for Biomedical Devices Design and Prototyping (IREBID-FP7-PEOPLE-2009-IRSES-247476). The first author gratefully acknowledges the support from the Spanish Government grant FPU12/05402. The fourth author would like to acknowledge financial support of the grant number 61061 from Consejo Nacional de Ciencia y Tecnologia (Conacyt), Mexico

© Journal of Materials Processing Technology, 2015, vol. 219, p. 221-229

Elsevier

Author: Bagudanch Frigolé, Isabel
Garcia-Romeu, Maria Luisa
Centeno, Gabriel
Elías-Zúñiga, Alex
Ciurana, Quim de
Date: 2015 May
Abstract: Incremental Sheet Forming (ISF) is a technology that allows producing highly customized products at a reasonable manufacturing cost, and Single point incremental forming (SPIF) is one of the simplest ISF processes. In this sense, recent research works have revealed an increasing interest in forming thermoplastic materials by ISF. The present paper focuses on determining the influence of the main process parameters, i.e. the step down, spindle speed, feed rate, tool diameter and sheet thickness, on the maximum forming force. Maximum depth has been analyzed as a formability indicator and surface roughness has been also addressed. The results show a significant effect of the spindle speed in the ISF process of polymeric materials, not only on the maximum forming force but also on its formability, by means of the maximum depth reached, and on the surface roughness achieved. This is a consequent of the triggered increment of temperature obtained due to the friction between the tool and the sheet blank, as far as temperature variation is supposed to be the main factor causing the variation of the mechanical properties of thermoplastic polymers. The material used in this research work was polyvinylchloride (PVC), which becomes rubber-like with the increase of temperature as a consequence of its viscoelastic behaviour
The research leading to these results has received funding from the Spanish Government, DPI2012-36042. The authors would like to thank the support from the International Research Exchange for Biomedical Devices Design and Prototyping (IREBID-FP7-PEOPLE-2009-IRSES-247476). The first author gratefully acknowledges the support from the Spanish Government grant FPU12/05402. The fourth author would like to acknowledge financial support of the grant number 61061 from Consejo Nacional de Ciencia y Tecnologia (Conacyt), Mexico
Format: application/pdf
ISSN: 0924-0136
Document access: http://hdl.handle.net/10256/10917
Language: eng
Publisher: Elsevier
Collection: MINECO/PN 2013-2015/DPI2012-36042
Reproducció digital del document publicat a: http://dx.doi.org/10.1016/j.jmatprotec.2014.12.004
Articles publicats (D-EMCI)
info:eu-repo/grantAgreement/EC/FP/247476
Is part of: © Journal of Materials Processing Technology, 2015, vol. 219, p. 221-229
Rights: Tots els drets reservats
Subject: Polímers
Polymers
Termoplàstics
Thermoplastics
Title: Forming force and temperature effects on single point incremental forming of polyvinylchloride
Type: info:eu-repo/semantics/article
Repository: DUGiDocs

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