Article In: orcid, cienciavitae
Understanding invert forming of thin-walled polyvinyl chloride tubes using a die based on a mechanical flow formulation
Materials and Manufacturing Processes
— 2009
Key information
Authors:
Published in
December 2009
Abstract
The design of sound metallic double-walled tubular parts by internal and external inversion using a die is presently well established. Major operating parameters are identified and the typical modes of deformation that can occur during the process are fully characterized. In contrast to metals, there are no practical design rules and no published research work in the specialized literature concerning the manufacture of double-walled polymer tubes by inversion. This article is concerned with the abovementioned lack of knowledge and is a contribution towards the application of existing metallic tube inversion technologies to polymers. The experimental research work makes use of Polyvinyl Chloride (PVC) and the overall findings are interpreted in the light of an innovative extension of the flow formulation that is capable of modeling cold plastic deformation of pressure-sensitive materials under a non-associated flow rule. Emphasis is placed on the deformation mechanics of tube inversion applied to PVC and on the influence of the major operating parameters on the overall formability limits of the process. Results show that invert-forming of thin-walled PVC tubes using a die can be successfully utilized for producing custom and specific shapes at the tube ends.
Publication details
Authors in the community:
Luís Manuel Mendonça Alves
ist13976
Paulo António Firme Martins
ist12470
Publication version
AO - Author's Original
Title of the publication container
Materials and Manufacturing Processes
First page or article number
1398
Last page
1404
Volume
24
Issue
12
Fields of Science and Technology (FOS)
mechanical-engineering - Mechanical engineering
Publication language (ISO code)
eng - English
Alternative identifier (URI)
http://www.scopus.com/inward/record.url?eid=2-s2.0-77949546023&partnerID=MN8TOARS
Rights type:
Only metadata available