Proceedings of the Korean Society for Technology of Plasticity Conference (한국소성가공학회:학술대회논문집)
- 2004.05a
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- Pages.214-220
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- 2004
Analysis of forming limit in tube hydroforming process
튜브 하이드로포밍 공정의 성형한계 해석
Abstract
The automotive industry has recently shown a growing interest in tube hydroforming. Even though many structural parts in automotives have been produced from the cylindrical tubes, many failures - wrinkling, buckling, folding back, bursting and so on - are frequently experienced during the tube hydroforming process under improper forming conditions. In this paper, analytical studies are performed to determine the forming limits for the tube hydroforming process and demonstrate how the loading path influences the forming limit. The theoretical results for the forming limits of the wrinkling and bursting are then compared with the experimental results for an aluminum tube.