| 摘要 |
<p>A lightweight, impact-resistant gas turbine blade (10) such as an aircraft engine fan blade, has an airfoil portion (14) which includes a metal section (28) and at least one foam section (38) which together define a generally airfoil shape. The metal section (28) extends from generally the blade root (16) to generally the blade tip (18). A composite skin (50) generally completely surrounds, and is bonded to, the metal section (28) and the at-least-one foam section (38). Preferably, an erosion coating (52) generally completely surrounds, and is bonded to, the composite skin (50). <IMAGE></p> |
