Glance of Hydroforming of Tubular Structure and Sheet Metal with Varing Blank Holding Loads By FEA & FTI
Hydroforming is a cost-effective way of shaping ductile metals suchas aluminium, brass, low alloysteel, stainless steel into lightweight, structurally stiff and strong pieces. One of the largest applications of hydro forming is the automotive industry, which makes use of the complex shapes possible by hydro forming to produce stronger, lighter, and more rigid anybody structures for vehicles. This technique is particularly popular with the high-end sports car industry and is also frequently employed in the shaping of aluminium tubes for bicycle frames. Hydro forming is a specialized type of die forming that uses a high pressure hydraulic fluid to press room temperature working material into a die. Hydroforming is done for tubular structure and sheet metal also. Finite element modeling and simulations of hydroforming sheet metal process and closed sections has been carried out with the emphasis on draw-in effect. For that used FEA and FTI methods. A Finite element model is built to simulate the different stages of the hydroforming process under various blank holding forces.
