Abstract: A method is provided for installing a fastener into an opening of a structure. The fastener includes a sleeve and a pin threadably received into the sleeve. The method includes inserting the fastener into the opening, grabbing a pintail of the pin, and deforming a tail of the sleeve radially outward relative to a centerline axis of the fastener by automatically displacing the pin longitudinally along the centerline axis relative to the sleeve. The method also includes rotationally shearing the pintail of the pin from a shaft of the pin.

Abstract: An installation tool assembly includes a workpiece and a tool. The workpiece includes a first wall having an aperture and a second wall spaced from the first wall relative to a first axis to present an access point therebetween. The installation tool assembly includes a fastener disposed in the aperture of the first wall at an initial position. The fastener includes a hole and a fastener locking feature disposed inside the hole. The tool includes a tool locking feature that is configured to engage the fastener locking feature to secure together the fastener and the tool in the initial position. The tool is operable to pull the fastener farther through the aperture into an interference fit with the first wall in an installed position. A tooling assembly includes the tool and the fastener. A method of installing the fastener to the workpiece uses the tool.

Abstract: An installation tool assembly includes a workpiece and a tool. The workpiece includes a first wall having an aperture and a second wall spaced from the first wall relative to a first axis to present an access point therebetween. The installation tool assembly includes a fastener disposed in the aperture of the first wall at an initial position. The fastener includes a hole and a fastener locking feature disposed inside the hole. The tool includes a tool locking feature that is configured to engage the fastener locking feature to secure together the fastener and the tool in the initial position. The tool is operable to pull the fastener farther through the aperture into an interference fit with the first wall in an installed position. A tooling assembly includes the tool and the fastener. A method of installing the fastener to the workpiece uses the tool.

Abstract: A method of forming an opening in a layered structure includes providing a layered structure including a first layer and a second layer and a near-zero gap interface defined between the first layer and the second layer; providing an opening through the layered structure such that the opening extends through the first layer and the second layer; and working simultaneously the opening in the fay surface of the first layer and the opening in the fay surface of the second layer without separating the first layer and the second layer. An internal chamfering device is also disclosed.

Abstract: A method of forming an opening in a layered structure includes providing a layered structure including a first layer and a second layer and a near-zero gap interface defined between the first layer and the second layer; providing an opening through the layered structure such that the opening extends through the first layer and the second layer; and working simultaneously the opening in the fay surface of the first layer and the opening in the fay surface of the second layer without separating the first layer and the second layer. An internal chamfering device is also disclosed.

Abstract: A process and apparatus for installation of a lockbolt to fasten together an assembly of at least two parts having a viscous fluid such as adhesive or sealant in the interface between the two parts, inserts a lockbolt into aligned holes through the two parts and exerts a pulling force of a predetermined intermediate magnitude on the lockbolt while reacting the pulling force against opposite sides of the assembly to exert a compressive force on the assembly to squeeze the fluid out of the interface. The intermediate pulling force is maintained for a precisely timed dwell period based on an optimal period for that fluid and that temperature. After the dwell period, the pulling force is increased in magnitude while simultaneously swaging a collar into threads on the lockbolt to secure the collar on the lockbolt and secure the lockbolt in a state of tension in the hole in the assembly. The pulling force magnitude continues to increase said until the pintail breaks off the lockbolt.

Abstract: A process and apparatus for installation of a lockbolt to fasten together an assembly of at least two parts having a viscous fluid such as adhesive or sealant in the interface between the two parts, inserts a lockbolt into aligned holes through the two parts and exerts a pulling force of a predetermined intermediate magnitude on the lockbolt while reacting the pulling force against opposite sides of the assembly to exert a compressive force on the assembly to squeeze the fluid out of the interface. The intermediate pulling force is maintained for a precisely timed dwell period based on an optimal period for that fluid and that temperature. After the dwell period, the pulling force is increased in magnitude while simultaneously swaging a collar into threads on the lockbolt to secure the collar on the lockbolt and secure the lockbolt in a state of tension in the hole in the assembly. The pulling force magnitude continues to increase said until the pintail breaks off the lockbolt.