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

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

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

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

Technical University of Lisbon

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-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 language	English
Title of host publication	Advanced Technology of Plasticity : Proceed. 9th International Conference on Technology of Plasticity
Place of Publication	Korea
Publisher	Korean Society for Technology of Plasticity
Publication date	2008
Pages	239-244
ISBN (Print)	978-89-5708-151-8
Publication status	Published - 2008
Event	9th International Conference on Technology of Plasticity - Gyeongju, Korea, Republic of Duration: 7 Sept 2008 → 11 Sept 2008 Conference number: 9 http://www.ryo-matsumoto.net/photo/ictp2008_photo.html

Conference

Conference	9th International Conference on Technology of Plasticity
Number	9
Country/Territory	Korea, Republic of
City	Gyeongju
Period	07/09/2008 → 11/09/2008
Internet address	http://www.ryo-matsumoto.net/photo/ictp2008_photo.html

OpenUrl availability

Full text

Cite this

@inproceedings{bf28b03487f4401fb0bf2289f44b0a18,

title = "Strain Paths and Fractures in Rotational Symmetric Multi Stage Single Point Incremental Forming",

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.",

author = "Martin Skj{\o}dt and M.B. Silva and P.A.F. Martins and Niels Bay",

year = "2008",

language = "English",

isbn = "978-89-5708-151-8",

pages = "239--244",

booktitle = "Advanced Technology of Plasticity",

publisher = "Korean Society for Technology of Plasticity",

note = "9th International Conference on Technology of Plasticity, ICTP 2008 ; Conference date: 07-09-2008 Through 11-09-2008",

url = "http://www.ryo-matsumoto.net/photo/ictp2008\_photo.html",

}

Skjødt, M, Silva, MB, Martins, PAF & Bay, N 2008, Strain Paths and Fractures in Rotational Symmetric Multi Stage Single Point Incremental Forming. in Advanced Technology of Plasticity: Proceed. 9th International Conference on Technology of Plasticity. Korean Society for Technology of Plasticity, Korea, pp. 239-244, 9th International Conference on Technology of Plasticity, Gyeongju, Korea, Republic of, 07/09/2008.

Strain Paths and Fractures in Rotational Symmetric Multi Stage Single Point Incremental Forming. / Skjødt, Martin; Silva, M.B.; Martins, P.A.F. et al.
Advanced Technology of Plasticity: Proceed. 9th International Conference on Technology of Plasticity. Korea: Korean Society for Technology of Plasticity, 2008. p. 239-244.

Research output: Chapter in Book/Report/Conference proceeding › Article in proceedings › Research › peer-review

TY - GEN

T1 - Strain Paths and Fractures in Rotational Symmetric Multi Stage Single Point Incremental Forming

AU - Skjødt, Martin

AU - Silva, M.B.

AU - Martins, P.A.F.

AU - Bay, Niels

N1 - Conference code: 9

PY - 2008

Y1 - 2008

N2 - 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.

AB - 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.

M3 - Article in proceedings

SN - 978-89-5708-151-8

SP - 239

EP - 244

BT - Advanced Technology of Plasticity

PB - Korean Society for Technology of Plasticity

CY - Korea

T2 - 9th International Conference on Technology of Plasticity

Y2 - 7 September 2008 through 11 September 2008

ER -

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

Abstract

Conference

OpenUrl availability

Fingerprint

Cite this