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US 6,568,077 B1Granted
Blisk weld repair
AssigneeGeneral Electric Company
InventorsLeslie McLean Hellemann, Christopher Lee English, Bruce Leonard Borne, Ronald Clarence Glover
Life of this patent
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Abstract
Damage in a blisk airfoil is machined away to create a notch. A repair is welded in the airfoil to fill the notch. The weld repair is then machined to restore the airfoil to a substantially original, pre-damaged configuration at the repair.
Claims24
A method of repairing a blisk having a row of airfoils comprising:
- machining away damage from one of said airfoils to create a notch therein having a predetermined configuration and size which is larger in area than said damage;
- welding a repair in said airfoil to fill said notch;
- and
- machining said repair to restore said airfoil to a substantially original, pre-damaged configuration at said repair.
1 more element
A method of repairing a blisk having a row of airfoils comprising:
- machining away damage from one of said airfoils to create a notch therein in a multi-axis numerically controlled milling machine, said notch having a predetermined configuration and size which is larger in area than said damage;
- welding a repair in said airfoil to fill said notch in a multi-axis numerically controlled welding machine;
- and
- machining said repair to restore said airfoil to a substantially original, pre-damaged configuration at said repair.
1 more element
Dependencies are inferred from the claim text.