Experimental modeling of pressure in the hydrostatic formation of a cylindrical cup with different materials

Trung Kien Le, Thi Thu Nguyen, Ngoc Tam Bui

Research output: Contribution to journalArticlepeer-review


Forming complex sheet products using hydrostatic forming technology is currently a focus of the majority of forming processes. However, in order to increase stability during the forming process, it is necessary to identify and analyze the dependency of the forming pressure and the quality of a product on input parameters. For the purpose of modeling the forming pressure, this paper presents empirical research on the product of a cylindrical cup made of various materials, including carbon steel (DC04), copper (CDA260), and stainless steel (SUS 304) with different thicknesses (0.8 mm, 1.0 mm, and 1.2 mm), under a defined range of binder pressures. The regression method is selected to formulate an equation that shows the relationship between the input parameters, including the materials (ultimate strength and yield stress), workpiece thickness, binder pressure and the output parameter, and the formation of fluid pressure. The mathematical equation allows us to determine the extent of the effect of each input on the forming pressure. The experimental results can be used for the easier planning and forecasting of the process and product quality in hydrostatic forming.

Original languageEnglish
Article number5814
JournalApplied Sciences (Switzerland)
Issue number13
Publication statusPublished - 2021 Jul 1


  • Experimental modeling
  • Forming pressure
  • Hydroforming
  • Regression
  • Sheet metal forming

ASJC Scopus subject areas

  • General Materials Science
  • Instrumentation
  • General Engineering
  • Process Chemistry and Technology
  • Computer Science Applications
  • Fluid Flow and Transfer Processes


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