Strain Paths and Fractures in Rotational Symmetric Multi Stage Single Point Incremental Forming

Martin Skjødt, M.B. Silva, P.A.F. Martins, Niels Bay

Research output: Chapter in Book/Report/Conference proceedingArticle in proceedingsResearchpeer-review

Abstract

A multi stage strategy, which allows forming of SPIF parts with vertical walls, is investigated with emphasis on strain paths and fracture strains. Whereas downwards movement of the tool pin results in deformation close to plane strain upwards moving tool results in biaxial strains. A good correlation is observed between numerical simulation and experiments for the three first stages of forming. Surface strains in the first stage show deformation to be stretching. Strain paths are far from straight except for the first stage of forming. A fracture line with a slope of -1 in the principle strain space is in good agreement with measured strains with and without fracture.
Original languageEnglish
Title of host publicationAdvanced Technology of Plasticity : Proceed. 9th International Conference on Technology of Plasticity
Place of PublicationKorea
PublisherKorean Society for Technology of Plasticity
Publication date2008
Pages239-244
ISBN (Print)978-89-5708-151-8
Publication statusPublished - 2008
Event9th International Conference on Technology of Plasticity - Gyeongju, Korea, Republic of
Duration: 7 Sep 200811 Sep 2008
Conference number: 9
http://www.ryo-matsumoto.net/photo/ictp2008_photo.html

Conference

Conference9th International Conference on Technology of Plasticity
Number9
CountryKorea, Republic of
CityGyeongju
Period07/09/200811/09/2008
Internet address

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