多段鍛造工程の数値シミュレーション : 第1報, プログラムの開発及び実験検証

概要

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An rigid-plastic FEM code of penalty method for analysis of multistage forging Process is developed on the basis of the existing simple code SPID, by which 2-dimensional and axisymmetric problems can be solved. The special improvements are achieved in the following points: (1) Treatment of contact and friction between the material and the tool, (2) Convergence of iterative calculation at each increment of deformation, especially when a new nodal point comes into contact with the tool, (3) Enabling to evaluate the punch load, (4) Enabling to illustrate the deformation pattern within the body, (5) Enabling graphical representation of various necessary quantities, and (6) Enabling to remesh the severely distorted finite elements. Using this code, a three-stage cold forging process is analyzed. The numerical results are compared with the corresponding experiments to confirm the usefulness of the developed code.
一般社団法人日本機械学会の論文
1996-10-25