Analysis of workpiece geometry change during isothermal free deformation of titanium alloys in square die

DOI

10.2991/aime-18.2018.68How to use a DOI?

Keywords

pneumatic forming, deformations, square die, height, thickness.

Abstract

Multi-layer cellular workpieces are used to manufacture fuel tanks, as well as the external hulls of aircraft. These designs are characterized by low weight and high strength. Monotonic formation with inert gases looks promising for the manufacturing of large workpieces. This article presents an approach to the modeling of energy-force parameters during free forming of titanium alloy workpieces in square dies with shortterm creep. The results of mathematical modeling of the investigated process are given in the form of inequations which allow estimating pressure and critical modes. According to these inequations, we found the influence of the process time on blank’s relative thickness change in various points of its surface, as well as on its height and maximum damage rate change.

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  - Sergey Nikolaevich Larin
AU  - Valeriy Ivanovich Platonov
AU  - Yuliya Vyacheslavovna Bessmertnaya
PY  - 2018/04
DA  - 2018/04
TI  - Analysis of workpiece geometry change during isothermal free deformation of titanium alloys in square die
BT  - Proceedings of the International Conference "Actual Issues of Mechanical Engineering" (AIME 2018)
PB  - Atlantis Press
SP  - 354
EP  - 357
SN  - 2352-5401
UR  - https://doi.org/10.2991/aime-18.2018.68
DO  - 10.2991/aime-18.2018.68
ID  - Larin2018/04
ER  -