METHOD OF DIE FORMING METALLIC SHEET MATERIALS

摘要

Drawing the plate into the cavity 12 by using a flow of viscous thermoplastic polymer medium that is injected into the plate and / or is ejected to be removed from within the cavity of the die and the plurality of passages 14a, 14b, 14c. Plate drawing molding method and apparatus. The injection of the medium can be programmed and varied so that the sheet is stretched while being adjusted into the cavity to determine the mold.