Although the expansion machine is lightweight, it has a large processing range. The forming process is the accumulation of continuous small deformations under local pressure, and the contact area between the workpiece and the mold is small, so the required deformation force is small and the equipment tonnage is small. Low production cost. Compared with free forging, it has lower material consumption, lower energy consumption, lower overall production costs, and better economic benefits. Good working conditions and high productivity.
