Numerical Analysis and Experimental Research of Autofrettaged Shrink-fitted Three-layer Extrusion Cylinder

Gexia Yuan, Juanping Wang, Feizhou Li, Baoyan Zhang

2018

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 consistent with finite element analysis results and it’s strength is improved significantly.

Paper Citation

in Harvard Style

Yuan G., Wang J., Li F. and Zhang B. (2018). 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 - Volume 1: ICIMM, ISBN 978-989-758-345-2, pages 141-145. DOI: 10.5220/0007527901410145

in Bibtex Style

@conference{icimm18,
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 - Volume 1: ICIMM,},
year={2018},
pages={141-145},
publisher={SciTePress},
organization={INSTICC},
doi={10.5220/0007527901410145},
isbn={978-989-758-345-2},
}

in EndNote Style

TY - CONF

JO - Proceedings of the 2nd International Conference on Intelligent Manufacturing and Materials - Volume 1: 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 - 2018
SP - 141
EP - 145
DO - 10.5220/0007527901410145