The Numerical Simulation of Superplastic Deformation on Ti-6Al-4V Laser Butt Weld Joint

Abstract

Forming process of TC4 titanium alloy laser weld joint during superplastic deformation is simulated. The stress and strain curve, which is obtained in the simulation, is compared with that obtained by hot tensile experiments. The simulation results provides a basis for subsequent laser welding / superplastic forming technology, and proposes outlook to the analyze problems for laser welding / superplastic forming (LBW / SPF) technology.

The Numerical Simulation of Transverse Tensile of High Temperature on Ti-6Al-4V Laser Butt Weld Joint

“…This work was financially supported by the Aviation Fund Project (2012ZE56013). 1 Aviation Fund Project: 2012ZE56013…”

“…Titanium is widely used in various fields, for its high strength, good corrosion resistance, high heat resistance and other characteristics [1]. The most current superplastic deformation /welding processing technology of TC4 is superplastic forming / diffusion bonding (SPF /DB) technology.…”