伝熱制御によるフッ素樹脂材のレーザマーキング痕の視認性向上

抄録

Fluoroplastic materials are difficult to decorate with normal printing methods because they repel ink and have poor adhesion due to its high water repellency. Therefore, when applying laser marking, which requires no pretreatment and allows high-speed fine processing, the surface irradiated by the laser is prone to thermal decomposition due to its high energy absorption and heat generation. Based on a heat transfer engineering concept, the work surface was cooled by thermal conduction using a laser-transparent heat sink to prevent overheating, while laser radiation caused foaming and discoloration limited to just below the surface, achieving the desired marking..