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A kinematics study of variable lead axisymmetric forward spiral extrusion

Khoddam, S., Farhoumand, A. and Hodgson, P. D. 2012, A kinematics study of variable lead axisymmetric forward spiral extrusion, Materials science and engineering A, vol. 550, pp. 167-175, doi: 10.1016/j.msea.2012.04.053.

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Title A kinematics study of variable lead axisymmetric forward spiral extrusion
Author(s) Khoddam, S.
Farhoumand, A.
Hodgson, P. D.
Journal name Materials science and engineering A
Volume number 550
Start page 167
End page 175
Total pages 9
Publisher Elsevier B.V.
Place of publication Amsterdam, The Netherlands
Publication date 2012-07-30
ISSN 0921-5093
Keyword(s) bulk deformation
spiral extrusion
kinematics of metal flow
velocity field
Summary Variable lead axi-symmetric forward spiral extrusion (VLAFSE) allows far more efficient strain accumulation than constant lead counterpart AFSE. It eliminates the rigid body rotation of the sample in an AFSE die which only causes frictional loss and has no contribution to the deformation. Based on a proposed velocity field, the kinematic formulation for VLAFSE is presented, utilized to predict strain components in the deformation zone and compared with experimental measurements. A simple closed form solution of the VLAFSE problem is presented which describes the flow of material inside the extrusion die. The results confirm that the effective strain of the process accumulates non-linearly in the both radial and extrusion directions.
Language eng
DOI 10.1016/j.msea.2012.04.053
Field of Research 109999 Technology not elsewhere classified
0912 Materials Engineering
0913 Mechanical Engineering
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
ERA Research output type C Journal article
Copyright notice ©2012, Elsevier B.V.
Persistent URL http://hdl.handle.net/10536/DRO/DU:30075614

Document type: Journal Article
Collection: Institute for Frontier Materials
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