Method and die carrier for forging and molding special-shaped cross section metal blank with through holes

The invention relates to a method and a die carrier for forging and molding a special-shaped cross section metal blank with through holes. The molding method comprises that: three die setting stations are arranged on a set of die carrier and are provided with specific dies for preforming, extrusion molding and wad punching respectively; and the blank passes through the dies of the three stations respectively in three strokes of a sliding block of pressure equipment, and the pressure equipment performs the preforming, extrusion molding and wad punching so as to finish the whole molding process of the work piece. The method and the die carrier have the advantages of finishing the whole molding machining process of a forge piece on one piece of pressure equipment by adopting the machining processes of preforming, extrusion molding and wad punching, and meeting the objective requirements of a design process and actual operation because the three-station die carrier structure with an independent clamping function