Three Dimensional Simulation of Air Bleed Duct under Deep Drawing of Ti 6Al-6V-2SN

Abstract:

Deep drawing is the compression-tension forming process which has been around for a long time. This is a cheap and cost effective process. This paper investigates the manufacturing of the air bleed duct under deep drawing with the velocity of 7 inches/second. Bleed air is compressed air taken from aircraft turbine engines for cabin climate control and systems such as de-icing equipment and also used in after burners. Bleed air duct used to operate the control of air flow to the cabin and powerplant. Bleed air possesses high temperature and high pressure, hence the quality of the duct should be strong enough to withstand them. In general air bleed duct made of titanium alloys under forming process with low strength, which causes the failure and replacement of air bleed duct when they expose to extreme temperature cases. The deep forming process will increase the strength of the bleed duct which reduces the replacement of air duct periodically and reduces the maintenance cost of the aircraft. In addition this paper provides the stress and strain energy data in order to understand the mechanical behavior of titanium alloy when they undergo high pressure blank process.

• Periodical: Applied Mechanics and Materials (Volumes 766-767)
• Pages: 1050-1054
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.766-767.1050
• Online since: June 2015
• Authors: P. Gunasekar*
• Keywords: Bleed Air Duct, Deep Drawing, Tangential Compressive Stress, Tensile Drawing Stress, Wrinkling

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