| 摘要 |
A method of producing an airfoil (12; fig 1) including the steps of providing a first perform (32; fig 2) having a metallic powder of a first alloy, the first preform defining an airfoil body having curved pressure and suction sides (20, 22; fig 1). A tip cap (28; fig 2) is disposed between the pressure and suction sides of the airfoil at a radially outer end of the airfoil body. A partial height squealer tip (30; fig 2) extends radially outwards from the tip cap to provide a second preform (34; fig 2) that is a metallic powder of a second alloy different from the first alloy. The tip cap is formed in the shape of an extension of the squealer tip. The first and second preforms are sintered to consolidate the metal powders. An airfoil according to the method is also disclosed. |
