PI樹脂積層プレス板材の小径穴あけ

（切りくず除去におけるバリ抑制の効果）

抄録

PI resin is non-thermoplastic. Compared with thermoplastic PEEK resin, it has higher heat resistance, dimensional stability, and wear resistance. Therefore, it is a component material in various aerospace, automotive, and semiconductor industries. However, in the cutting process of PI resin, burrs generated during the machining process cause deterioration in product quality and obstacles in subsequent processes. This study investigated the effect of cutting conditions on burr generation in small-diameter drilling for the machining of PI resin parts. As a result, within the experimental conditions, drilling at a step of 0.05 mm and a feed rate of 100 mm/min and removing chips adhering to the tool by air before the final step were the optimal machining conditions for burr suppression in the drilling of PI resin. This enables high machining accuracy and efficiency of small-diameter holes in PI resin.