Superplastic Blow Forming of Welded Sandwich Panel for Elevated Temperature Application

DOI

10.2991/eame-15.2015.138How to use a DOI?

Keywords

manufacturing; sandwich; aerospace; high temperature; propulsion; titanium

Abstract

Aerospace structure requires lightweight panels to obtain weight saving and strength. It is well known that lightweight and stiff, sandwich panels are one of a vital element of aerospace structural design. In sandwich structures, the face sheets are the main load-bearing element. Since conventional polymer matrix composite materials have a limitation for elevated temperature application, metallic sandwich structures must be used in for elevated temperature application, like propulsion system. In this study, it is demonstrated that superplastic blow forming process with titanium and IN718 can be applied to manufacturing of metallic sandwich structure with cores for lightweight structure of aircraft structural panels and propulsion components. The result shows that the developed technology to process design of gas blow forming by the finite element method can be applied for near net shape forming of various sandwich structures from pre-welded panels.

Copyright

© 2015, 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  - K.J. Min
AU  - J.H. Yoon
AU  - J.T. Yoo
AU  - H.H. Jung
AU  - Y.R. Lee
AU  - H.S. Lee
PY  - 2015/07
DA  - 2015/07
TI  - Superplastic Blow Forming of Welded Sandwich Panel for Elevated Temperature Application
BT  - Proceedings of the 2015 International Conference on Electrical, Automation and Mechanical Engineering
PB  - Atlantis Press
SP  - 486
EP  - 488
SN  - 2352-5401
UR  - https://doi.org/10.2991/eame-15.2015.138
DO  - 10.2991/eame-15.2015.138
ID  - Min2015/07
ER  -