Step 1

The pin is inserted into the hole with a transition or interference fit from one side of by the drill riveter machine. The collar is automatically feed to the pin and placed over the locking grooves

Step 2

The swage anvil then moves into position and begins to develop clamp-up while swaging the collar. The pin is supported by the upper ram of the drill riveter machine during the swaging action

Step 3

Collar swaging is complete when the drill riveter machine reaches the pre-set swage force. At this time clamp force has been generated due to the extrusion of the collar that creates a corresponding stretch of the pin. The retained clamp load developed is over 50% of the fasteners ultimate tensile.

Step 4

The swage anvil is ejected by machine ejection force after collar is completely swaged. The installation is complete and the drill riveter machine indexes to next installation