2004年
Simulation of hammering hydroforming by static explicit FEM
ISIJ INTERNATIONAL
- ,
- ,
- ,
- 巻
- 44
- 号
- 1
- 開始ページ
- 123
- 終了ページ
- 128
- 記述言語
- 英語
- 掲載種別
- 研究論文(学術雑誌)
- DOI
- 10.2355/isijinternational.44.123
- 出版者・発行元
- IRON STEEL INST JAPAN KEIDANREN KAIKAN
Recently, tube hydroforming is receiving increasing attention. Knowledge on the process is, however, still insufficient to produce high-quality products in an efficient way. Hammering hydroforming, in which the hydraulic pressure is pulsated synchronously with axial feeding, is an effective method of improving forming ability. However, the factors that cause the improvement are still unclear. In the research reported in this paper, simulations of an automotive component produced by hammering hydroforming have been performed using a static explicit finite-element method code, which was developed in this study. The simulation results showed a good agreement with the experiment, thus validating the hammering hydroforming simulation by the developed code. The factors that improve the forming ability were also investigated by simulation. It was clarified that the hammering forming has the advantage of obtaining enough expansion as well as the regular forming with the lower friction force by using the lower pressure history. Moreover, that roughly the same effect as lowering the friction coefficient could be achieved by the hammering hydroforming.
- リンク情報
- ID情報
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- DOI : 10.2355/isijinternational.44.123
- ISSN : 0915-1559
- CiNii Articles ID : 10012899270
- Web of Science ID : WOS:000220206500016