| 摘要 |
A contoured gas turbine blade (25) has tapered outer surfaces (28) projecting from a base (40) which is secured to a work holder (70) mounted on a rotary table (64). This table is supported by an X-Y cross slide (42), and separate stepping motor (52) to rotate and move the holder on the three axes. A high speed grinder motor (88) has a shaft (91) supporting a grinding wheel (95) for rotation on a forth axis generally parallel to the rotary axis. The grinder motor is supported for universal tilting movement on fifth and sixth axes, and two stepping motors (162, 168) and ball screw slides (146, 167) control the tilting movement. An adjustable follower (180) is supported adjacent the grinding wheel (95) for engaging the blade (25) while the blade moves, and the grinding wheel (95) removes weld flash (34) from the tip (32) of the blade to form a tapered contoured blade surface.
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