Distortion-free manufacturing of large titanium integrally bladed rotors
AssigneeRtx Corporation
InventorsSean A. Burns, Richard F. Koczera
Life of this patent
Estimating the term…
Abstract
The disclosure describes a process for eliminating residual stress in a forging for rotors including providing the forging for the rotor and removing a bulk material from an area located near airfoils of a finish part formed from the forging prior to process steps such as a rough turn, a finish mill of blades, a vibratory polish of the blades and a finish turn.
Claims20
A process for eliminating residual stress in a forging for rotors comprising:
- providing the forging for the rotor;
- and
- removing a bulk material from an area located near airfoils of a finish part formed from the forging prior to process steps selected from the group consisting of a rough turn, a finish mill of blades, a vibratory polish of the blades and a finish turn.
A process for eliminating residual stress in a forging for an integrally bladed rotor comprising:
- providing a forging for the integrally bladed rotor;
- removing material from the forging proximate a blade block prior to a finish machining step;
- removing forging material in the range of 45-50% by volume near the blade block;
- and
- performing a finish machining step after the step of removing material from the forging proximate the blade block.
(canceled)
A process for eliminating residual stress in a forging for an integrally bladed rotor comprising:
- providing a forging for the integrally bladed rotor;
- removing material from the forging in a range of 45-50% by volume proximate a blade block prior to a finish machining step;
- and
- performing a finish machining step after the step of removing material from the forging in a range of 45-50% by volume proximate the blade block, wherein the finish machining step is selected from the group consisting of a rough turn, a finish mill of blades, a vibratory polish of the blades and a finish turn.
(canceled)
Dependencies are inferred from the claim text.