| 摘要 |
A dish-shaped wheel having an essentially slot-shaped conically extending cutting tip with the tip extending angularly from the wheel surface. The tip includes a super abrasive plating suitable for nondressable cutting such as cubic boron nitride. The wheel is of sufficient diameter to cut an ellipse approximating the arc to be formed as the wheel moves in an arc through the article. The apparatus further includes mechanism for orienting the wheel, mechanism for rotating the wheel and mechanism for translating the wheel or the article in a desired arc for producing a curved slot. The apparatus has particular application for producing narrow curved featherseal slots in turbine vane platforms, allowing increased complexity in vane design while enhancing seal integrity.
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