Abrasive tool making process – material – or composition – With carbohydrate or reaction product thereof
Patent
1980-02-25
1982-01-12
Whitehead, Harold D.
Abrasive tool making process, material, or composition
With carbohydrate or reaction product thereof
51 34A, 51100R, 51142, 5116592, B24B 2100
Patent
active
043098487
ABSTRACT:
An apparatus for finishing the tips of turbine blades and the like is provided. The invention is especially useful on worn turbine blades which have been repaired by adding weld material. An abrasive first removes excess weld material with a reciprocating motion and constant force. A sensor indicates when the abrasive is a predetermined distance above the intended finish contour surface and thereafter there is a predetermined fixed time in which the material removal continues. During the predetermined time period the motion of the abrasive is converted to one along a guided path corresponding to the path of the finished surface contour by apparatus such as a cam and cam follower. Thus, the time of refinishing is reduced and labor productivity is increased.
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Nessler C. G.
United Technologies Corporation
Whitehead Harold D.
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