Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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Deformation Characteristics in Sheet Metal Forming with Small Ball

소형 구를 이용한 박판 성형에서의 변형특성

  • 심명섭 (홍익대학교 대학원 기계공학과) ;
  • 박종진 (홍익대학교 기계·시스템디자인 공학과)
  • Published : 2001.02.01
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Abstract

Recently, the technology of incremental forming for sheet metal components has drawn attention for small-batch productions. In the present investigation, a forming tool containing a freely-rotating ball was developed and applied to forming of various shapes with full annealed Al 1050 sheet. Deformation characteristics occurring during forming with this tool was examined through FEM analysis and grid measurement. It was found that deformation modes developed along a straight path and around a corner are close to those of plane-strain and equi-biaxial stretching, respectively, and that cracks occur mostly at corners for the same depth of tool. FEM analysis was successfully applied to this special type of forming process and provided comparable results to the measurements from experiment.

Keywords

References

  1. Transaction of JSME(Series C) v.58 no.554 Flexible and Incremental Sheet Metal Bulging using a Path-controlled Spherical Roller Iseki, H.;Kato, K.;Sakamoto, S.
  2. Transaction of JSME(Series C) v.59 no.565 Flexible and Incremental Sheet Metal Bulging using a Few Spherical Rollers Iseki, H.;Kato, K.;Kumon, O.;Ozaki, K.
  3. J. of JSTP. v.35 no.406 Incremental Backward Bulge Forming of a Sheet Metal with a Hemispherical Head Tool Matsubara, S.
  4. J. of JSTP. v.35 no.406 A CNC Incremental Sheet Metal Forming Method for Producing the Shell Components Having Sharp Corners Kitazawa, K.;Wakabayashi, A.;Murata, K.;Seino, J.
  5. Proc. Fall Conference of KSPE Multi-pass Forming Method of Incremental Sheet Metal Forming Process Kim, T. J.;Cho, C. H.;Park, S. K.;Yang, D. Y.
  6. J. of IJMS. v.42 Improvement of Formability for the Incremental Sheet Metal Forming Process Kim, T. J.;Yang, D. Y.