Topic
Hydroforming
About: Hydroforming is a research topic. Over the lifetime, 2796 publications have been published within this topic receiving 26293 citations. The topic is also known as: Bulge forming.
Papers published on a yearly basis
Papers
More filters
TL;DR: A brief review of recent developments in the hydroforming processes is presented in this article, where the process variations used for forming tubular and flat components, the integral hydrobulge forming of shell products and the newly developed viscous pressure forming process are outlined and their characteristics and applications are summarized, especially in respect of applications of the processes in the automotive industries.
117 citations
TL;DR: In this article, different approaches for the analysis of hydraulic bulge were compared with experimental results to determine the best combination in obtaining accurate flow curves models at room and elevated temperature conditions for different lightweight materials of interest for several industrial applications.
117 citations
TL;DR: In this article, the analytical models constructed in this paper are used to show what the limits are during the free forming, how different material and process parameters influence the loading path and the forming result, and what an experimental investigation into hydroforming should focus on.
Abstract: The automotive industry has shown a growing interest in tube hydroforming during the past years. The advantages of hydroforming (less thinning, a more efficient manufacturing process etc.) can, for instance, be combined with the high strength of extra high strength steels, which are usually less formable, to produce structural automotive components which exhibit lower weight and improved service performance. Design and production of tubular components require knowledge about tube material behaviour and tribological effects during hydroforming and how the hydroforming operation itself should be controlled. These issues are studied analytically in the present paper. Hydroforming consists of free forming and calibration. Only the so-called free forming is treated here. The analytical models constructed in this paper are used to show what the limits are during the free forming, how different material and process parameters influence the loading path and the forming result, and what an experimental investigation into hydroforming should focus on. The present study was a part of a larger investigation, in which finite-element simulations and experiments were also conducted. The results of these simulations and experiments will be accounted for in coming papers.
113 citations
TL;DR: In this paper, the performance of different anisotropic yield functions in predicting the response and burst of tubes loaded under combined internal pressure and axial load was evaluated, and the results were used to calibrate the non-quadratic yield functions of Hosford and Karafillis-Boyce.
112 citations
TL;DR: In this article, many experimental tests and finite element model computation are performed to predict the damage evolution in notched tensile specimen of sheet metal using the Gurson-Tvergaard-Needleman (GTN) model.
111 citations