Methods of Establishing Forming Limit Diagram of Tube Hydroforming

Guo Lin Hu; Lian Fa Yang; Jian Wei Liu

doi:10.4028/www.scientific.net/AMR.602-604.1934

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 602-604Methods of Establishing Forming Limit Diagram of...

Methods of Establishing Forming Limit Diagram of Tube Hydroforming

Abstract:

Forming severity is one of the significant indexes to assess formability of tube hydroforming. The state of strain can be accurately reflected when tube reaches forming limit, mechanical rules during forming processes can be revealed as well by using the forming limit diagram (FLD). By contrast with FLD of sheet metal, the FLD of tube hydroforming is seen as different. In this paper, the importance of FLD of tube hydroforming was discussed briefly; typical methods established to FLD of tube hydroforming were listed and classified; characteristics and insufficiencies of those methods were pointed out; advantages of forming limit stress diagram (FLSD) were introduced simply. Furthermore, the main problem and the trend of development in FLD of tube hydro-forming were summarized.

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Periodical:

Advanced Materials Research (Volumes 602-604)

Pages:

1934-1937

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.602-604.1934

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Online since:

December 2012

Authors:

Guo Lin Hu, Lian Fa Yang, Jian Wei Liu

Keywords:

Establishing Method, Forming Limit Diagram (FLD), Hydroforming, Tube

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