Research on the Influence of Robot Automatic Resin Sand Spraying Process on the Quality of Composite Material Paint Layer

This article mainly studies the robot automatic resin sand spraying process, especially its impact on the surface roughness and adhesion of composite materials. The surface roughening of aviation composite materials mainly includes roughening before bonding, roughening before aluminum spraying, and roughening before painting. Traditional roughening process schemes mostly include manual polishing, manual sandblasting, etc. This article is based on an eight axis linkage robot automatic resin sand spraying system. The main research focuses on the influence of different process parameter combinations such as sandblasting pressure, movement rate, and spraying frequency on the surface removal degree of aviation composite materials before spraying. The coarsening degree is characterized by metallographic microscopy, surface roughness, and tensile strength, providing theoretical support for the selection of robot automatic resin sand coarsening process parameters.