Abstract:
Ball Swaging is a typical swaging process used for assembling Head Gimbal Assembly (HGA) intoarm coils by shooting swage ball through base plates to compress with the arm coils. Theassembling qualities were affected by process parameters such as ball size, shooting speed and balldirection. This thesis aimed to study the effects of those parameters on major concerned assemblingqualities which are the tightening torque resistant and the orientation of slider using finite elementanalysis. The results showed that the larger swage ball gave higher tightening torque resistance andhigher orientation deviation. Acquiring higher ball speed to increase production rate would result inreduced tightening torque resistant and increased orientation deviated. Reversed ball directionwould produce larger tightening torque resistant and lower orientation deviated. Moreover, it wasfound that increased ball friction gives the resemble effects as increased ball size.The analytical results emphasize the importance of parameters on assembling qualities and thedeformation mechanism. Thus, based on the results of stress distribution from finite elementanalysis, the design consideration for suspension shape could be revised to prevent some certaininfluences.