By using self resistance of titanium alloy

electric current can be applied to heating it to high temperature quickly and forming. In forming process of titanium bellows

there are 4 important parameters to be determined

namely current size

heating time

bulging pressure and axial pressure. By observing and controlling the thermal field when heating the bellows

the best thermal field can be got. Through bellows forming process simulation

the initial experimental parameters can be got

which can provide a reference for subsequent experiments. By controlling thermal field and bellows forming process simulation

the bellows can be heated to molding temperature

then productivity is improved and pollution of environment is reduced

the excessive thinning of the bellows is avoided when using complex process of inflatable and axial load.