ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Superplastic blow forming with diffusion bonded sheet is an effective forming technologyfor the production of multi-cell structures which should have light weight and high stiffness foraerospace purpose. In the current study, finite element analysis on superplastic blow forming processhas been carried out in order to improve the forming process when manufacturing axi-symmetricmulti-cell structures using diffusion bonded Ti-6Al-4V multi-sheets. The simulation focused on thereduction of forming time and obtaining finally required shape throughout investigating thedeformation mode of sheet according to the forming conditions, which are diffusion bonding patternand die geometry. To reduce forming time, a preforming die was required, and to obtain the finalshape the bonding pattern should be also modified within allowable geometrical margin, so that thesheet is easy to deform. Moreover, an intermediate simulation result, which was forming pressureprofile, was employed in real forming test to check if the prediction was reasonably on progress. In thefuture, a study on the thickness ratio between each sheet should be followed to obtain optimumprocess parameters
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.1361.pdf
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