板厚均一化を目指した熱可塑性樹脂板の2工程プレス成形

概要

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One of the forming methods that improve the thickness distribution of products is multistage press forming. In this investigation, themoplastic plates are used as the workpiece. The influence of forming conditions (radius of punch and punch stroke) in the first stage on thickness distribution of products was examined experimentally and analytically. Moreover, to search for the optimum forming condition which makes thickness distribution uniform, the punch stroke and radius of punch in the first stage were considered for design parameters and the thickness deviation was used as objective function. Consequently, it was confirmed that the thickness distribution of products is improved by using two-stage press forming. The objective function of the thickness deviation is confirmed to be very complex and have more than one local optimum point. This demonstrates the difficulty of finding the global optimum point quickly.
一般社団法人日本機械学会の論文
1995-03-25