A Study on the CFRP Cover Manufacturing Method and Mechanical Property Evaluation of Robot Water-Jet Cutting Machine

In this study, a carbon fiber-reinforced plastic (CFRP) cover was studied to prevent the nozzle drive module of a robot water-jet cutting machine from being corroded by water. To verify the CFRP cover manufacturing method and durability, the mechanical property was evaluated by making a specimen for process verification. The water pressure line connected to the nozzle drive module is in close contact with the cover owing to the excessive movement of the robot water-jet cutting machine. Therefore, if a material with low hardness is applied to the cover, it will wear out and the durability will decrease. In this study, to improve the durability of the cover, a lightweight and high-strength carbon fiber material was applied. Furthermore, an appropriate composite material manufacturing process was applied to reduce the manufacturing cost. The results of physical property evaluation and performance evaluation of the CFRP cover were derived.