Method and apparatus for grinding the blade tips of a rotor...

Abrading – Precision device or process - or with condition responsive... – With feeding of tool or work holder

Reexamination Certificate

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Details

C451S047000

Reexamination Certificate

active

07833086

ABSTRACT:
Tip grinding of BLISK blades is performed in a static state of an incrementally rotatable BLISK, with a rotational axis (9) of a grinding wheel (4), which is traversable along an upper edge of the blade, being aligned diagonally to an orientation of the blade upper edge, and hence, in a direction of maximum resistance moment of the blades. The apparatus for the performance of the method features a locating device (7) for a BLISK which is incrementally rotatable by an auxiliary drive (8) as well as a high-speed shaft (3) driven by a main drive (2) for blade tip grinding of conventional rotor wheels fittable to the high-speed shaft (3). The grinding wheel (4) is traversable in Y-direction and rotatable about a center axis extending in X-direction, such that the blade tips in the static state can be ground in the direction of the maximum resistance moment of the blades.

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