FIELD: metallurgy.
SUBSTANCE: method for producing a hollow blade of a turbomachine of aluminium alloy comprises forming blade back and trough elements by imparting with aluminium alloy a predetermined profile and dimensions to the plates, fixing them and providing predetermined profile and dimensions of the blade and their subsequent integral connection between each other. The blade back and trough elements of aluminium alloy are connected to each other through additional metal element made of titanium or titanium alloy or alloyed steel, forming an inlet and oulet blade edges which correspond to profile and sizes of inlet and outlet blade edges and having cavities providing conjugated connection to the blade back and trough elements.
EFFECT: increase of strength properties and erosion resistance.
8 cl, 2 dwg
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