Machining tool and method for abradable coating pattern
AssigneeGeneral Electric Company
InventorsBlake Allen Fulton, Patrick Thomas Walsh, Liming Zhang, Graig Lowell Sarratt, Douglas John Dix
Life of this patent
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Abstract
A method for forming a pattern in an abradable coating includes the step of machining a groove in the abradable coating with a machining tool. The machining tool is configured to machine a top surface, a side surface and a bottom surface of the groove simultaneously. A repeating step repeats the machining step until a desired number of grooves is obtained in the abradable coating.
Claims19
A method for forming a pattern in an abradable coating, the method comprising the steps of:
- machining a groove in the abradable coating with a machining tool, the machining tool configured to machine a top surface, a side surface and a bottom surface of the groove simultaneously;
- and
- repeating the machining step until a desired number of grooves is obtained in the abradable coating.
A machining tool configured for forming a pattern in an abradable coating, the abradable coating forming part of a turbomachine component, the machining tool comprising:
- a shank;
- an abrasive head connected to the shank, the abrasive head comprising a top grinding surface, a side grinding surface and a bottom grinding surface;
- wherein the top grinding surface and bottom grinding surface are generally parallel to each other, and the side grinding surface is chamfered and joins both the top grinding surface and the bottom grinding surface.
A system for creating a pattern in an abradable coating, the abradable coating forming part of a turbomachine component, the system comprising:
- a machining tool having a shank and an abrasive head connected to the shank, the abrasive head comprising a top grinding surface, a side grinding surface and a bottom grinding surface, wherein the top grinding surface and bottom grinding surface are generally parallel to each other, and the side grinding surface is chamfered and joins both the top grinding surface and the bottom grinding surface;
- a three-axis rotary mill configured to move the machining tool in three dimensions and rotate the machining tool at about 1,000 to about 30,000 revolutions per minute (rpm);
- and
- wherein the system is configured for machining a groove in the abradable coating with the machining tool, and the machining tool is configured to machine a top surface, a side surface and a bottom surface of the groove simultaneously.
Dependencies are inferred from the claim text.