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US 7,007,382 B2Granted
Slot machining
AssigneeUnited Technologies Corporation
InventorBlake M. Mantel
Life of this patent
Estimating the term…
Abstract
A method for cutting a blade root retention slot in a turbine engine disk element includes forming a precursor slot in the element. The precursor slot has first and second sidewalls and a base. A rotating bit is passed through the precursor slot to machine the base. The bit rotates about an axis off-normal to a direction of passing.
Claims17
A method for cutting a blade root retention slot in a turbine engine disk element, the method comprising:
- forming a precursor slot in the element, the precursor slot having first and second sidewalls and a base;
- subsequent to said forming, machining a convoluted profile into the first and second sidewalls;
- and
- subsequent to said machining, passing a rotating bit through the precursor slot to machine said base, the bit rotating about an axis off-normal to a direction of said passing.
1 more element
A method for cutting a blade root retention slot in a turbine engine disk element, the method comprising:
- forming a precursor slot in the element, the precursor slot having first and second sidewalls and a base;
- subsequent to said forming, passing a rotating bit through the precursor slot to machine said base, the bit rotating about an axis off-normal to a direction of said passing.
Dependencies are inferred from the claim text.