FIELD: pressure shaping; manufacture of blanks from materials at preset structure including submicro-crystalline structure and nano-crystalline structure at respective level of physico-mechanical properties.
SUBSTANCE: proposed method consists in successive deformation cycles of initial blank by compression in height, thus obtaining blank with lateral faces. Proposed method ensures smooth plastic flow of material of blank in opposite directions along axis perpendicular to direction of application of deformation force. Each deformation cycle includes placing the blank in device, subjecting it to deformation, withdrawing the blank from device and re-setting for next cycle. Device proposed for realization of this method has working part with cavity and upper and lower punches. Working cavity consists of two parts: upper and lower. Lower part is widened along one of its horizontal axes.
EFFECT: enhanced homogeneity of ultrafine-grained structure at improved mechanical properties.
9 cl, 4 dwg, 1 tbl, 1 ex
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