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RESEARCH PAPERS

Integral Hydro-Bulge Forming of Single and Multi-Layered Spherical Pressure Vessels

[+] Author and Article Information
J. Hashemi, J. Rasty, S. Li

Department of Mechanical Engineering, Texas Tech University, Lubbock, TX 79409

A. A. Tseng

Department of Mechanical Engineering and Mechanics, Drexel University, Philadelphia, PA 19104

J. Pressure Vessel Technol 115(3), 249-255 (Aug 01, 1993) (7 pages) doi:10.1115/1.2929524 History: Received July 29, 1992; Revised March 08, 1993; Online June 17, 2008

Abstract

The recently developed integral hydro-bulge forming (IHBF) process was utilized in the manufacturing of single and multi-layered spherical pressure and storage vessels. Single-layered spherical vessels of 1.6-mm thickness and diameters of 316.5, 634.1, and 953.2 mm were manufactured. As an alternative means of manufacturing thick-walled spherical pressure vessels, the IHBF procedure was modified and used informing double-layered composite pressure vessels with an effective thickness of 15 mm. The results showed that the modified IHBF process may successfully be applied in the manufacturing of multi-layered spherical vessels of various thicknesses and diameters. In this paper, the conventional and modified IHBF procedure will be outlined and the experimental results and analysis will be presented. Finally, areas where further work is needed are identified.

Copyright © 1993 by The American Society of Mechanical Engineers
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