Effects of sandblasting angle on coating removal

Surface coatings may experience wear, peeling, and other forms of damage during service, which severely impacts their absorbing performance. To restore the performance of damaged coatings, it is crucial to remove coatings. This paper investigated the effect of sandblasting angle on the removal of damaged coatings from TC4 titanium alloy surfaces and determined the optimal sandblasting angle. When SiC is selected as the abrasive, the removal effect is best when the blasting angle is 60°, taking into account the comprehensive sandblasting effect and the degree of damage to the substrate. The sandblasting removal mechanism of surface coatings was explored and this study provides a procedural pathway for the effective removal of surface coatings.