The paper presents a method of laser texturing of bodies of rotation made of titanium alloy to increase the adhesive strength of adhesive joints in spacecraft structures. A universal laser processing control algorithm has been developed that ensures the precise formation of a spiral and mesh surface texture of the material with specified parameters: the pitch between the grooves, the angle of inclination and the length of the treated area. The algorithm takes into account the geometric features of the parts, including the diameter of the curved surface, and synchronizes the speed of the laser and the rotation frequency of the workpiece to achieve uniform texture distribution. Experimental studies were carried out on cylindrical samples with two texture variants. The test results showed that laser texturing significantly increases the strength of adhesive joints, which is 50% higher than values shown after mechanical processing. The improvement of adhesive properties is associated with an increase in surface roughness and the creation of mechanical bonds between the surface and the adhesive. The laser texturing method is promising for use in the production of spacecraft power elements, such as composite tube—titanium sleeve joints.

EDN KOXCDV