◆The travel depth can be adjusted according to the area of the vamp, and the required bearing pressure, blanking Speed, shaping time, shaping temperature and pressure on tool-lowering top material strength can be adjusted according to characteristics of material, so as to improve the vamp shaping spring.
◆The cutting die can be changed depending on the vamp shaping spring to make the vamp spring consistent with the last spring, so as to reduce loss.