Articles | Volume 8, issue 2
https://doi.org/10.5194/ms-8-267-2017
https://doi.org/10.5194/ms-8-267-2017
Research article
 | 
28 Aug 2017
Research article |  | 28 Aug 2017

An alternative design method for the double-layer combined die using autofrettage theory

Chengliang Hu, Fengyu Yang, Zhen Zhao, and Fan Zeng

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Subject: Structural Mechanics | Techniques and Approaches: Mathematical Modeling and Analysis
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Cited articles

Anantharam, K. and Kumar, B. S. K.: Design analysis of high pressure cylinders subjected to autofrettage process using MATLAB and ANSYS, Int. J. Eng. Res. Technol., ESRSA Publications, November, 955–961, 2014.
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Groenbaek, J. and Birker, T.: Innovations in cold forging die design, J. Mater. Process Tech., 98, 155–161, 2000.
Hojjati, M. H. and Hassani, A.: Theoretical and finite-element modeling of autofrettage process in strain-hardening thick-walled cylinders, Int. J. Pres. Ves. Pip., 84, 310–319, 2007.
Hur, K. D., Choi, Y., and Yeo, H. T.: Design for stiffness reinforcement in backward extrusion die, J. Mater. Process Tech., 130, 411–415, 2002.
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Short summary
An alternative design method of the double-layer combined die using autofrettage theory is proposed. The relationship between the autofrettage pressure and the yield radius of the die insert is obtained, and expressions of residual stresses and displacements, which are directly related to geometric parameters, material properties and internal pressure, are derived. Compared with the conventional combined die, the autofrettaged die can bear larger working pressure, as expected.