Investigating the Factors Affecting the Tube Hydroforming (THF) under Impact Loading

Computations and Simulations in Mechanical Science

دوره 2، شماره 1، تیر 2023، صفحه 1-7   

نوع مقاله: Original Article

نویسندگان

Arman Mohseni؛ Javad Rezapour؛ Sina Gohari Rad^* ؛ Reza Rajabiehfard

چکیده

The hydroforming process is used to form pieces that are transformed into the internal shape of the designed mold under fluid pressure. Adopting the optimal loading path is one of the most important points related to this process. This study has used a projectile hammer to apply the dynamic loading path in the experiments, which in addition to reducing the time, fewer systems are used, and in this regard, an energy source has been used for two different actions of axial feeding and internal pressure. Therefore, there is a need to design a form suitable for the dynamic loading path to perform the mentioned factors at the same time. This study has studied the numerical investigation of the deformation of pipes based on the impact and the amount of fluid in the mold. Also, it is worth mentioning that axial feeding is applied using different lateral punches on the sides of the pipe, so it is obvious that the kinetic energy, amount of fluid, sealing, lubrication, material and thickness of the pipe must be proportional to each other for proper shaping. The mentioned hydrodynamic loading path can be researched using the simulation model, which has been used Abaqus to observe the changes resulting from this process, which can be used to investigate the state of the system and predict fields such as displacement, thickness and pressure distribution. Furthermore, several responses from the simulation were checked for the accuracy of the final result to lead to convergence.

کلیدواژه‌ها

Hydroforming؛ Internal pressure؛ Axial feeding؛ Simulation model؛ Dynamic loading path