Predicting the formation characteristics of titanium alloy self-locking nuts

Titanium alloy is important for the aerospace industry because of its high specific strength as well excellent anti-corrosion and anti-oxidative properties. In this paper, a three-dimensional thermo-mechanical coupled simulation was carried out to predict formation characteristics TC4 titanium self-locking nut during upset forging process. The stability upset-forged material analyzed, influences initial temperature deformation velocity on quality formed were investigated. results show that if length:diameter ratio sample less than 3.27, tends be stable, so we selected 2.89. Additionally, properties improved when increase, decreased upper die increased. Our provide theoretical guidance nuts using forging.