Finite Element Simulation and Analysis on Bending Forming and Springback of Stainless Steel Thin Tube
The finite element model of bending forming of stainless steel thin tube was established on Simufact Forming software.The process of bending forming was simulated,and the influences of coefficient of friction and bending speed on springback degree were analyzed.The results showed the equivalent stress within the bending region increased,the local high-stress areas were extended,outer thickness decreased and inner thickness increased with the increment of bending angle.And the springback degree of stainless steel thin tube first increased and then decreased with the increase of the friction coefficient or the decrease of the bending speed.When the friction coefficient is 0.2 or bending speed 190° within 2 s,the springback degree reaches the maximum.This study can be of the references for the simulation of thin tubes bending forming and the prediction of springback.
stainless steel thin tubebending formingspringbackfinite element modelsimulation analysis
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