<p>Due to the low stiffness of cylindrical shells, significant vibration occurs during turning of the cladded surface. This study explores the effect of interfacial structures between the cladding layer and substrate on the turning stability. A comprehensive evaluation of surface integrity was conducted for cylindrical shells with different interfacial structures. Results showed that the triangular and circular arc interfacial structures exhibited the highest stiffness followed by isosceles trapezoidal and rectangular interfacial structures. As a result, the triangular and circular arc interfacial structures yielded the lowest RMS, tensile residual stress and surface roughness, followed by isosceles trapezoidal and rectangular interfacial structures. Moreover, the triangular and circular arc interfacial structures exhibit the highest comprehensive evaluation values, which are improved by 464% and 369% than that of the straight line interface, respectively. The reason can be attributed to that increasing the interface structure can enhance modal damping, although it may reduce structural rigidity. On basis of this research, incorporating interfacial structures is a meaningful method to improve the turning stability of laser cladded cylindrical shells.</p>