To strengthen carbon fiber reinforced plastics (CFRPs), fiber placement along the principal stress directions have been studied as a promising approach. However, a method to sufficiently impregnate a resin between the curved carbon fibers has not established thus far, although arbitrary arrangement of carbon fibers is feasible using the automated fiber placement (AFP) machine. Previously, the authors had developed an electrodeposition resin molding method based on electrophoresis. In this method, the carbon fiber preforms sewn by the AFP machine is immersed in the electrodeposition solution containing polymers with epoxy groups, and optimal current is applied to impregnate resin between carbon fibers. In this study, we showed that a CFRP specimen could be fabricated with arranging the carbon fibers along the principal stress direction, resulting in approximately 10% higher tensile strength than that of the specimen with unidirectional carbon fibers.

为了增强碳纤维增强塑料（CFRPs），已经研究了沿主应力方向放置纤维的方法。然而，尽管使用自动纤维铺放（AFP）机器对碳纤维进行任意布置是可行的，但是到目前为止，还没有建立在弯曲的碳纤维之间充分浸渍树脂的方法。以前，作者已经开发出一种基于电泳的电沉积树脂成型方法。在这种方法中，将通过AFP机缝制的碳纤维预成型件浸入包含具有环氧基的聚合物的电沉积溶液中，并施加最佳电流以将树脂浸渍在碳纤维之间。在这项研究中，我们表明可以通过沿主应力方向排列碳纤维来制造CFRP标本，