Study on the Sealing and Inactivation Mechanics of Titanium Alloy Tube Flareless Internal Rolling Connection

DOI

10.2991/iceep-18.2018.203How to use a DOI?

Keywords

titanium alloy tube, flareness internal rolling, sealing mechanics, fretting wear

Abstract

The finite element model of the internal rolling connection process for Titanium alloy tubes was established. The distribution of the elastic strain and the contact force were analyzed to reveal the sealing mechanics of the flareless union. The residual compressive stress was generated between the tube and sleeve, which made the tube and sleeve contact closely. Through the microscopic view analysis of the connection interface between the tube and sleeve before and after vibration test, the vibration fatigue inactivation mechanism was disclosed. In the action of circulate vibration load, fretting wear generated between the tube and sleeve, which broke the original contact state. Then the tube and sleeve can’t connect closely and the joint became inactivate.

Copyright

© 2018, the Authors. Published by Atlantis Press.

Open Access

This is an open access article distributed under the CC BY-NC license (http://creativecommons.org/licenses/by-nc/4.0/).

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TY  - CONF
AU  - Rong-xia ZHANG
AU  - Wei WU
AU  - Yuan-song ZENG
PY  - 2018/09
DA  - 2018/09
TI  - Study on the Sealing and Inactivation Mechanics of Titanium Alloy Tube Flareless Internal Rolling Connection
BT  - Proceedings of the 2018 7th International Conference on Energy and Environmental Protection (ICEEP 2018)
PB  - Atlantis Press
SP  - 1152
EP  - 1158
SN  - 2352-5401
UR  - https://doi.org/10.2991/iceep-18.2018.203
DO  - 10.2991/iceep-18.2018.203
ID  - ZHANG2018/09
ER  -