FIELD: process engineering.
SUBSTANCE: invention relates to metal forming, particularly, to production of parts from metals and alloys that can obtain nano- and microcrystalline structure with specified minimised grain size ensured by preliminary intensive plastic forming of blanks. Proposed method comprises equal channel angular pressing of blanks to get the structure with grain size not over 1.5 mcm. Then, blanks are heated and shaped under super plasticity conditions. Note here that heating is carried out to optimum temperature corresponding to peak at blank material internal friction vs. temperature. Shaping is conducted at temperature deviations not over magnitude defined by design equation.
EFFECT: higher efficiency of production.
10 cl, 1 tbl, 4 dwg, 9 ex
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