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Authors: Gexia Yuan ; Juanping Wang ; Feizhou Li and Baoyan Zhang

Affiliation: School of Mechanical Engineering and Baoji University of Arts and Sciences, China

Keyword(s): Three-layer extrusion cylinder, Shrink-fit, Autofrettage, Residual stress, Strength, ANSYS

Abstract: Multilayer cylinder is a commonly used structure of ultra-high extrusion cylinder. In order to increase the load carrying capacity and durability of a shrink-fit three-layer extrusion cylinder, the paper proposed the multiple autofrettage process based on analysis of simulation. Firstly, A 3-D finite element contact model of the extrusion cylinder has been constructed in the ANSYS environment; The element used here is 3D SOLID 186, and using a bilinear isotropic hardening model approximating the real material behaviour. Then, we have used the model to simulate processes of fitting, autofrettage and boring of extrusion cylinder by multi-step load and birth and death element techniques, then comes to the residual stresses of different times autofrettaged cylinder. The results show multiple-autofrettage can increase hoop compressive residual stress. The extrusion cylinder was made three times autofrettage processes and boring machining, its actual elastic operating pressure is consisten t with finite element analysis results and it’s strength is improved significantly. (More)

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Paper citation in several formats:
Yuan, G.; Wang, J.; Li, F. and Zhang, B. (2019). Numerical Analysis and Experimental Research of Autofrettaged Shrink-fitted Three-layer Extrusion Cylinder. In Proceedings of the 2nd International Conference on Intelligent Manufacturing and Materials - ICIMM; ISBN 978-989-758-345-2, SciTePress, pages 141-145. DOI: 10.5220/0007527901410145

@conference{icimm19,
author={Gexia Yuan. and Juanping Wang. and Feizhou Li. and Baoyan Zhang.},
title={Numerical Analysis and Experimental Research of Autofrettaged Shrink-fitted Three-layer Extrusion Cylinder},
booktitle={Proceedings of the 2nd International Conference on Intelligent Manufacturing and Materials - ICIMM},
year={2019},
pages={141-145},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007527901410145},
isbn={978-989-758-345-2},
}

TY - CONF

JO - Proceedings of the 2nd International Conference on Intelligent Manufacturing and Materials - ICIMM
TI - Numerical Analysis and Experimental Research of Autofrettaged Shrink-fitted Three-layer Extrusion Cylinder
SN - 978-989-758-345-2
AU - Yuan, G.
AU - Wang, J.
AU - Li, F.
AU - Zhang, B.
PY - 2019
SP - 141
EP - 145
DO - 10.5220/0007527901410145
PB - SciTePress

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