Simulation of the Time and Temperature Effects On Spring Back in Tube Bending Process

Subject Areas : Creep, Fatigue and Fracture Mechanic

Mohammad Hossein Tehrany ¹ , Mehrdad Ozve Aminian ²

1 - Department of Mechanical Engineering, Semnan Branch, Islamic Azad University, Semnan, Iran
2 - Department of Mechanical Engineering, Semnan Branch, Islamic Azad University, Semnan, Iran

Received: 2017-10-01 Accepted : 2017-12-14 Published : 2018-01-10

Keywords: Finite Element Method, Spring Back, Tube bending,

Abstract :

Bending is one of the most usable metal forming processes. Due to the limited elasticity coefficient of the material, followed by plastic deformation, after removing the load, there is always an elastic recovery. Reducing the amount of spring back and process optimization are important in bending process. In this article, the effects of temperature and time on spring back of stainless steel and aluminum tubes bending have investigated. For this purpose, bending process has stimulated by finite element method using Abacus software. This method has investigated for different temperatures and times. Finally, to validating simulation results, a series of practical examinations have done for tube bending. The results of both methods are in a good agreement with each other so that with increasing of temperature, spring back effect has decreased and also with increasing time after bending, spring back amount percent has decreased.