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Published in:
2023 | OriginalPaper | Chapter
Numerical Study on Unwelded Pair of Sheets in Hydrostatic Forming
Author : Thu Nguyen Thi
Publisher: Springer Nature Switzerland
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Abstract
In recent years, high-pressure liquid forming technology has been widely applied into the manufacture of thin shell and tubular parts. In addition to superiorities including surface quality guarantee and operation reduction, this technology can also improve productivity and product diversity in one forming step by punching pairs of sheet metal. The generated pair of sheets can be symmetrical or asymmetrical. However, assessing the impact of technological parameters on the forming ability of the pair is difficult, especially the products stamped from a pair of unwelded sheet metal. Therefore, in the paper, the effects of blank holder force on cylindrical cup from unwelded pairs of sheets are investigated. Numerical simulation method was selected for study in this issue. The results give an important assessment of the impact of the factor on the shaping ability of the product. Based on these results, controlling stability of the forming process will be more convenient.