One-piece manufacturing process
AssigneeDresser-Rand Company
InventorsKevin Pickrell, Mark J. Kuzdzal
Life of this patent
Estimating the term…
Abstract
A method of making a turbomachine part, wherein the method can include machining a blank into a base having blades extending therefrom, the blades defining a channel therebetween. The method can also include forming a bridge constructed from refractory material in the channel between the blades, and forming a cover on the tops of the blades and over the channel, such that the base, the blades, and the cover form a single substantially homogenous turbomachine part once the bridge is removed.
Claims20
A method of making a turbomachine part, comprising:
- machining a blank into a base having first and second blades extending therefrom, the first and second blades each having a side, the side of each of the first and second blades together defining a channel therebetween;
- forming a bridge in the channel between the first and second blades by filling the channel with a refractory material;
- forming a cover on first and second tops of the first and second blades, respectively, and over the channel, such that the base, the first and second blades, and the cover form a single substantially homogenous structure;
- and
- removing the bridge.
A method of making a turbomachine part, comprising:
- machining a blank into a base and first and second blades extending from the base, the first and second blades each having a top and a side, wherein the side of each of the first and second blades and the base together define a channel between the first and second blades;
- forming a bridge across the channel using a ceramic molding material;
- forming a cover on the first and second blades and the bridge such that the base, the first and second blades, and the cover form a single substantially homogenous structure;
- and
- removing the bridge.
A method of making a one-piece part, comprising:
- machining a blank into a base and first and second appendages extending from the base, the first and second appendages each having a side, the side of each of the first and second appendages together defining a channel therebetween;
- forming a bridge in the channel;
- forming a cover on the first and second appendages such that the base, the first and second appendages, and the cover form a substantially homogeneous structure;
- and
- removing the bridge.
Dependencies are inferred from the claim text.