Parametric study of swage ball for hard disk drive swaging process using finite element method

Conference proceedings article

Authors/Editors

Strategic Research Themes

No matching items found.

Publication Details

Author list: Dheeravongkit A., Tirasuntarakul N.

Publisher: Trans Tech Publications

Publication year: 2013

Volume number: 275-277

Start page: 2241

End page: 2247

Number of pages: 7

ISBN: 9783037855911

ISSN: 1660-9336

eISSN: 1662-7482

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84873365849&doi=10.4028%2fwww.scientific.net%2fAMM.275-277.2241&partnerID=40&md5=c70e7d8f56e179d934bd75ad4aa27af9

Languages: English-Great Britain (EN-GB)

View in Web of Science | View on publisher site | View citing articles in Web of Science

Abstract

Ball swaging is a general method in head stack assembly process to permanently attach Head Gimbal Assemblies (HGA) on the actuator arm. In this process, the swage ball is guided by a pin through the inner base plate's hole in order to deform the base plate to tightly attach to the actuator arm. However, the loosing problem can still be found quite often in the current swaging process. This research focuses on ball sizes and the number of balls used which currently no theoretical guidance in choosing the both parameters. Besides, the best combination of the both parameters can give the best swaging performance. The three-dimensional finite element model is created and analyzed to estimate the swaging performance according to the variation of both parameters by using the tightening torque and the fixing distance of base plate to determine the quality of the ball swaging process. The results from finite element method are treated as the sampling points which are used to create the interpolation in order to increase the considered cases to cover all happening cases from both parameters. After that, a searching algorithm is implemented to determine the most suitable ball size and the number of ball used for the process. By using the finite element analysis together with the interpolation and a searching algorithm, the optimal design parameters for a complex problem with multiple conditions of consideration can be easily found. ฉ (2013) Trans Tech Publications, Switzerland.

Keywords

Ball swaging process, Head gimbal assemblies (HGA)