PROCESS OF MAKING A SHROUDED IMPELLER

摘要

A method (100) of fabricating a shrouded impeller (10) is disclosed. The method includes providing an open faced impeller (16), the open faced impeller including a plurality of blades (14) extending at least partially radially from a hub (12). The method also includes performing (120) a first powder metallurgical process to form a first material (52A) over at least part of the open faced impeller. The method further includes forming (160) a shroud (20) circumferentially disposed about the hub and connected to one of more of the blades. Forming the shroud includes performing a second powder metallurgical process to metallurgically bond the shroud to at least some of the blades.