A method is provided for assembling an actuator assembly of a disk drive. The
method
includes providing an actuator arm, providing a suspension arm, fixing a swage
plate to the suspension arm, the swage plate including a swage boss extending therefrom,
depositing a film lubricant upon at least an outer surface of the swage boss, and
attaching the suspension arm to the actuator arm by swaging. A method is also provided
for reducing torque out retention values between the actuator arm and the suspension
arm when the actuator arm and suspension arm must be separated in a subsequent
de-swaging process. This method includes providing an outer surface of the swage
boss, and applying a lubricant film coating to the outer surface of the swage boss.
A preferred thin film lubricant may be applied by emersion and draining, localized
spraying, or various deposition processes. Application of the lubricant has also
shown to improve gram load uniformity and to reduce adverse distortion to the actuator
assembly which otherwise occurs during swaging.