a lubricant is applied to swage contact surfaces in a disk drive of the type including a suspension arm connected to an actuator arm by a swaging process . a preferred thin film lubricant may be applied to the contact surfaces by immersion and draining , immersion and raising the part out of the solution , localized spraying , or various deposition processes . application of the lubricant reduces chipping during de - swaging , particularly with nickel plated metal components . application of the lubricant has also shown to improve gram load uniformity , reduce adverse distortion to the actuator assembly and reduces torque out retention values . improved gram load uniformity enhances overall disk drive functioning , reduced distortion preserves intended attitude and flatness of the actions for assembly and reduced torque out retention values improves reworkability of the disk drive .