Abrasive tip blade manufacture methods
AssigneeUnited Technologies Corporation
InventorChristopher W. Strock
Life of this patent
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Abstract
A method is disclosed for manufacturing a blade tip coating. The blade tip coating (152) comprising an abrasive (156) and a matrix (154). The method comprises forming a mixture comprising the abrasive, a precursor of the matrix, and an additional particulate (158). The mixture is pressed, the additional particulate acting as a stop to limit thickness reduction of the mixture.
Claims26
A method for manufacturing a blade tip coating, the blade tip coating comprising an abrasive and a matrix, the blade comprising:
- an airfoil having:
- a root end and a tip;
- and
- a substrate along at least a portion of the airfoil,
- the method comprising:
- forming a mixture comprising the abrasive, a precursor of the matrix, and an additional particulate;
- and
- pressing the mixture, the additional particulate acting as a stop to limit thickness reduction of the mixture;
- applying the mixture to the tip;
- removing a first release member from the pressed mixture prior to the applying;
- and
- removing a second release member from the pressed mixture after the applying.
A method for manufacturing a blade tip coating, the blade tip coating comprising an abrasive and a matrix, the blade comprising:
- an airfoil having:
- a root end and a tip;
- and
- a substrate along at least a portion of the airfoil,
- the method comprising:
- forming a mixture comprising the abrasive, a precursor of the matrix, and an additional particulate;
- applying the mixture to the tip;
- and
- after the applying, pressing the mixture, the additional particulate acting as a stop to limit thickness reduction of the mixture.
A method for manufacturing a blade tip coating, the blade tip coating comprising an abrasive and a matrix, the method comprising:
- forming a mixture comprising the abrasive, a precursor of the matrix, and an additional particulate;
- applying the mixture to the tip;
- after the applying, pressing the mixture, the additional particulate acting as a stop to limit thickness reduction of the mixture,
- wherein
- the tip coating is a first layer;
- and
- the method further comprises forming a second layer having a lower abrasive content than the first layer, the second layer formed atop the first layer by:
- forming a second mixture comprising a second abrasive, a second matrix precursor, and a second additional particulate;
- and
- pressing the second mixture against the first layer, the second additional particulate acting as a stop to limit thickness reduction of the second mixture during the pressing of the second mixture.
A method for manufacturing a blade tip coating, the blade tip coating comprising an abrasive and a matrix, the blade comprising:
- an airfoil having:
- a root end and a tip;
- and
- a substrate along at least a portion of the airfoil,
- the method comprising:
- forming a mixture comprising the abrasive, a precursor of the matrix, and an additional particulate;
- pressing the mixture, between a release member and a sacrificial member the additional particulate acting as a stop to limit thickness reduction of the mixture;
- removing a first release member from the pressed mixture;
- and
- after the removing, applying the mixture to the tip.
Dependencies are inferred from the claim text.