| 摘要 |
<p>A gas-turbine turbine blade comprises two separate pieces assembled in clamshell fashion and bonded together, each piece including an air-foil part and a root part monolithic therewith, the air-foil being tapered and twisted with changing cambers from hub to tip so that straight line spanwise-directed bores are precluded throughout at least a portion of the air-foil, at least one of the air-foil parts having grooves provided in its facing-parting-surface to form internal cooling passages in the air-foil section upon assembly of the separate pieces into a unitary blade.</p> |
