応答曲面を用いた板材製作のための最適工程システム

概要

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The optimum process design system for sheet fabrication was developed by combining finite element analysis and discretized optimization algorithms. Generally, material development for sheet fabrication have been carried out for better formability index such as n-value and r-value, etc. However, various factors have influence upon the forming performance and the formability. It can't be said that higher n-value and r-value are not always better for any forming condition. The aim of this system is to assist the decision of material process condition for waking the sheet metal, which has better formability in stamping. In the study, annealing temperature and time are chosen as the process parameters. Formability is evaluated by thickness uniformity of stamped part. The response surface method was applied in order to improve the search efficiency of optimization algorithm. It is demonstrated that the proposed optimum process design system is a useful tool for the design of material process and sheet metal fabrication.
社団法人日本機械学会の論文
2003-02-25