ANALYSIS OF THE INFLUENCE OF SPRAY DISTANCE AND ANGLE ON COATING QUALITY IN ROBOTIC MANIPULATOR PAINTING USING MATLAB

Abstract

In this paper, the influence of spray distance and spray angle on coating quality during robotic manipulator painting is analyzed in the MATLAB environment. In robotic painting systems, ensuring product quality, uniform paint layer distribution, and stability of the technological process depend on the correct positioning of the spray gun relative to the surface. Particularly on complex-shaped and uneven surfaces, variations in spray distance lead to increases or decreases in coating thickness. The spray angle, in turn, determines the efficiency of paint particle deposition on the surface. In this paper, the combined effect of distance and angle is modeled using a spray cone model, coating thickness equation, and quality indicator. The relationships among distance, angle, and coating quality are evaluated using graphs in MATLAB. The results show that an optimal spray distance and a spray angle close to the surface normal improve coating quality.