Investigation of micro sheet metal forming of ball retainer using finite element analysis

R. S. Lee, C. H. Chen, Y. F. Sung

Research output: Chapter in Book/Report/Conference proceedingConference contribution

4 Citations (Scopus)


In this paper, the thickness/grain size ratio was proposed as an indicator for studying the size effect of micro deep drawing of a ball retainer. Experiments with AISI 304 stainless steel with 0.06mm thickness were performed by heat treatment and tensile test. Flow stresses at various thickness/grain size ratios were obtained. The commercial finite element software LS-DYNA was used to simulate the deep drawing process of the ball retainer. The simulation results agree well with experimental results. The effective stress on the lower fringe of ball hole decreases as the thickness/grain size ratio decrease. Effective strain and thickness shows less sensitivity with the thickness/grain size ratio according to the comparison. It determined that the thickness/grain size ratio would be an important indicator for process design as it corresponds to a heat treatment condition.

Original languageEnglish
Title of host publicationProceedings of the 35th International MATADOR 2007 Conference
PublisherSpringer Science and Business Media, LLC
Number of pages4
ISBN (Print)9781846289873
Publication statusPublished - 2007 Jan 1
Event35th International MATADOR 2007 Conference - Taipei, Taiwan
Duration: 2007 Jul 12007 Jul 1

Publication series

NameProceedings of the 35th International MATADOR 2007 Conference


Other35th International MATADOR 2007 Conference

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials

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