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Development of the Injection Molded Ball Seat for Automobile Suspension  

Ye, Sang-Don (동의대학교 기계공학과)
Min, Byeong-Hyeon (동의대학교 기계공학과)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.10, no.4, 2011 , pp. 50-56 More about this Journal
Abstract
Injection molding process is one of the popular manufacturing methods to produce plastic parts with high efficiency and low cost. Ball seat for automobile suspension is made by an injection molding process as a part to support pivot function of ball joint consisted of ball stud and housing. It is necessary for a ball seat to have a dimensional stability in the three dimensional inner area to be contacted with ball stud. In this paper, the dimensional stability of inner surface is indirectly analyzed by checking the difference of inner diameter around the circumferential direction and the thickness variation at the top part of ball seat. Measurement was performed by using the coordinate measuring machine and the fixture to hold ball seat. Optimization of injection molding processes such as injection time, cooling time and temperatures of cylinder barrel was derived to reduce the difference of inner diameter and the thickness variation at the top part of ball seat based on the Taguchi method.
Keywords
Ball Joint; Ball Seat; Injection Molding; Thickness Variation; CAE;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
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