Process for producing rhomboid blades of axial flow machines and a blank for this production process

摘要

The blade is machined out of a solid blank (3) starting from a heat-shapen rod-like starting material whose cross-section has the shape of a rhomboid adapted to the shape of the cross-section of the rhomboid blade foot (2) and larger on all sides by only the minimum processing addition (5) than the maximum cross-section of the blade. The blank is separated off from this starting material so that its length corresponds to the length of the blade, possibly extended where required by the clamping ends required for processing.