Journal of the Korean Society of Manufacturing Process Engineers (한국기계가공학회지)

The Korean Society of Manufacturing Process Engineers (한국기계가공학회)
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Study on Size Evaluation by Surface Expansion for Soft Polymer Foam

연질 고분자 발포체의 표면팽창을 통한 치수평가에 관한 연구

  • Kim, Min-Woo (School of Mechanical Engineering, Korea Maritime & Ocean UNIV.) ;
  • Cho, Chong-Rae (School of Mechanical Engineering, Korea Maritime & Ocean UNIV.) ;
  • Kim, Myoung-Hun (Korea Institute of Footwear and Leather Technology)
  • 김민우 (한국해양대학교 기계공학과) ;
  • 조종래 (한국해양대학교 기계공학과) ;
  • 김명훈 (한국신발피혁연구원)
  • Received : 2019.09.04
  • Accepted : 2019.09.20
  • Published : 2019.11.30
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Abstract

The dimensional quality of flexible foams is often difficult to be evaluated through general machine vision inspection methods due to the free deformation of the outer shape. For the evaluation of the dimensions of flexible foams, methods of estimating the size of the product through the expansion rate of the product surface are evaluated. Specimens with various dimensions and surface gratings are prepared, and the degree of surface expansion is measured through machine vision. The correlation, between the measured surface grid size and the actual size of test specimens, is analyzed. We further analyze the correlation between the size of test specimens and the position of the surface grid. This study provides a basis for estimating the actual dimensions of specimens by measuring the surface expansion of flexible foams.

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References

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