Baseplate Design to Improve Swaging Performance of Actuator in a HDD

HDD 액추에이터의 스웨이징성능향상을 위한 베이스플레이트 최적설계

  • 이행수 (울산과학대학 디지털기계학부) ;
  • 홍어진 (삼성전자 스토리지사업부)
  • Published : 2009.08.01


In the manufacturing process of HDD, ball swaging method is commonly used to joint the Head Gimbal Assembly(HGA) with the arm of the actuator. The hub on the HGA is placed into the hole of the actuator arm, and the hub and arm is bonded by the pressure of steel ball. The pressure for plastic deformation on the baseplate causes the undesirable deformation on HGA, such as tilting, flying height change of head. After obtaining the key parameters that have large sensitivity on the swaging process, the optimal shape of baseplate is proposed to increase the static performance during swaging process. Contribution of the proposed design for the swaging performance is verified by contact simulation with elasto-plastic deformation.


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