The introduction of electric current to materials will bring some obviously positive effects on mechanical properties and microstructure. In the term of mechanical properties

the flow stress will decrease and the capacity for plasticity will be improved. At the same time

microcrack blunt because of the influence of electric current. As for microstructure

it accelerates recrystallization and refines grains

resulting in the change of texture. Materials heated directly by electric current lead to low energy consumption and the efficiency of forming rises. Electric current is applied in many plastic forming techniques

such as stamping

rolling and superplastic forming. Nowaday

the main purpose of forming is energy conservation and high efficiency

and electric current drives sophisticated manufacturing greatly

especially in the field of aeronautics and astronautics. It is proved that electric current is worth in the field of plastic processing by many attempts of scholars.