FIELD: plastic working of metal, possibly manufacture of blade blanks, for example for compressors of gas-turbine engines in aircraft making industry branch and power machine engineering.
SUBSTANCE: method comprises steps of forming blank of blade by extruding it in the form of H-beam with bridge thickness no less than predetermined maximum thickness of widened part of blade blank and with thickness of flanges of shape no less than predetermined maximum thickness of tail part of blade blank; dividing formed H-shape by fragments whose length is no less than predetermined width of tail of blade blank. It is possible to realize rolling or drawing of extruded H-beam shape. Formed blank is twisted along its lengthwise axis.
EFFECT: lowered labor consumption for making blade blank with optimal grain structure of its material.
4 cl, 1 dwg, 1 ex
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