3-Dimensional stress analysis of a ball swaging process using the finite element method

Abstract

The purposes of this research are to explore stress, retention torque, and gram load which occur in the ball swaging process, the main component determinin gquality of assembly the head gimbals assembly with the actuatorarm. Using the finiteelement method to reproduce the ball swaging process,we repeted to study effect of direction of the ball shooting.The study was done by creating the three dimensionals finite element model. To verify the accuracy of thefinite element model, we compared calculated results of th eretention torque and gram load from finiteelement analysis to the testing results.The results demonstrate that when compare theretention torque and gram load values due to the norma lball direction and the ball swaging process,therewere10.33%and0.80%of maximal error,respectively.Additionally,when compared the separameters between the normal ball direction and there verseball direction, there were3.44and-0.03of maximal error, respectively.