METHOD OF MACHINING AIRFOILS BY DISC TOOLS

摘要

A method for machining a rotor (30) having a disc and a plurality of integral airfoils (32) projecting outwardly from the disc, according to one aspect of the invention, comprises a step of machining each airfoil (32) with a disc tool (10) having a grinding periphery (16) thereof adapted for removing material from the airfoils (32). The grinding periphery (16) has a thickness greater than a thickness of an adjacent supporting portion (18) of a disc plate (12) to permit the grinding periphery (16) to pass a surface of an airfoil (32) in a multi-axis simultaneous motion, thereby matching the grinding periphery (16) with a predetermined geometry of a portion of the airfoil (32).