Abstract: A cord spool may have a generally cylindrical primary element made of flexible material, which may have first and second primary element openings. The primary element may further include a central exterior portion between first and second raised portions. The primary element may further include an interior portion dimensioned and configured to accept a fixture. The cord spool also may have at least one flexible strap securely affixed to and extending through the interior portion of the primary element and extending beyond the first and second openings of the primary element. The strap may have first and second strap ends with first and second fasteners. The strap may be dimensioned and configured to allow the first and second strap ends to be releasably secured to one another, forming a cord securing loop.

Abstract: A cord spool may have a generally cylindrical primary element made of flexible material, which may have first and second primary element openings. The primary element may further include a central exterior portion between first and second raised portions. The primary element may further include an interior portion dimensioned and configured to accept a fixture. The cord spool also may have at least one flexible strap securely affixed to and extending through the interior portion of the primary element and extending beyond the first and second openings of the primary element. The strap may have first and second strap ends with first and second fasteners. The strap may be dimensioned and configured to allow the first and second strap ends to be releasably secured to one another, forming a cord securing loop.

Abstract: A method of repairing a part, such as a rotating disk/drum rotor of a gas turbine engine. The method includes: heating a contact area of a wrought material and a contact area of a wrought part; and pressing the contact area of the material against the contact area of the part to bond the parts. A method of making a rotating part of a gas turbine engine, comprising: heating a contact area of a wrought material and a contact area of a wrought part; and pressing the contact area of the material against the contact area of the part to bond the parts. The methods may include a subsequent heat treatment to provide the desired strength properties to the joint between the material and the part.

Abstract: A method of repairing a part, such as a rotating disk/drum rotor of a gas turbine engine. The method includes: heating a contact area of a wrought material and a contact area of a wrought part; and pressing the contact area of the material against the contact area of the part to bond the parts. A method of making a rotating part of a gas turbine engine, comprising: heating a contact area of a wrought material and a contact area of a wrought part; and pressing the contact area of the material against the contact area of the part to bond the parts. The methods may include a subsequent heat treatment to provide the desired strength properties to the joint between the material and the part.

Abstract: A blade bonding device permits individual blades to be bonded to a blade stub for the purpose of replacing a damaged blade. The device includes a clamp frame and hydraulic ram. A blade holder arranged in contact with the axially moveable ram shaft is guided by a precision slot and pin arrangement from the frame. The clamp engages the inner surfaces of the rim of the rotor disk, and has a cooling passage through this location near the rim. The advantages of the clamp and cooling means are to not mechanically or thermally stress the disk.

Abstract: Techniques for fabricating or repairing integrally bladed rotors are developed. A new or replacement blade is bonded to a projecting stub. The new blade has a collar through which bonding forces are transmitted. After bonding with heat and pressure, final machining and heat treatment operations are performed.

Abstract: A method and apparatus are disclosed which are useful for fabricating integrally bladed rotors. In particular, the method and apparatus are used to increase the twist of the blades on the rotor from a first degree of twist to a second degree of twist under superplastic forming conditions. The apparatus is constructed and arranged such that the method can be carried out at ambient atmospheric conditions. A key feature of the invention is that the blade twisting dies are present in the blade heating zone only when the dies contact the blade. When the dies are not in contact with the blades, they are at ambient conditions where oxidation is at a minimum.

Abstract: A die package for forming a central disc structure having a plurality of integrally formed appendages extending therefrom includes a cylindrical array of appendage forming, abutting die segments which are prevented from tilting or moving in a circumferential direction by means of pins extending into slots formed along the parting lines between abutting die segments in the upper surfaces of the segments. In one embodiment, the pins extend upwardly from between opposed, parallel, radially and axially extending walls of each slot and fit tightly between said walls. The upper ends of the pins are secured to a rigid annular ring overlying the slots. The slots extend radially inwardly of the pins to allow the die segments to be moved radially outwardly after forging to release the forging from the die package.