Homogeneous metal constructing and forming method

A homogeneous metal constructing and forming method is characterized by comprising the steps of preparing a plurality of elements made of the same material; stacking the elements according to the preset shape; packaging the elements stacked according to the preset shape for forming preformed blanks; seaming interfaces between the elements through forge welding for making the preformed blanks into blanks. According to the invention, a plurality of metal blanks small in size are adopted as the constructing elements for forming large metal blanks.