후판재의 고세장비 피어싱공정의 3차원 유한요소해석
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In this paper, three-dimensional finite element approach is attempted to simulate a high-aspect ratio piercing process of the plate which is thick compared to the radius of the diameter of pierced hole. The same process is simulated using axisymmetric approach to be compared with the three-dimensional approach emphasizing that much more attention should be paid to come over some difficulties in generating extremely fine mesh system around the piercing region and numerical problems due to remeshing.