Research on surface profile measurement of weak-rigid plate

Weak-rigid components have a wide range of applications in the fields of aerospace, vehicle and ship power. They have the characteristics of high accuracy, poor rigidity, and easy deformation. The uncertainty of their deformation has an important impact on the overall performance and subsequent use of the equipment. Weak-rigid plates are one of the most common types of weak-rigid components. At present, the research on weak-rigid plates mainly focuses on the deformation control of the workpiece during processing, and there are relatively few studies on the measurement of comprehensive parameters. The surface profile parameters of the weak-rigid plate will reflect the performance and processing quality of the weak-rigid plate. In this paper, a comprehensive index measuring device for weak-rigid components based on dispersion confocal sensor and a stress change test system for weak-rigid components based on dynamic interferometer are used to accurately measure the surface profile of weak-rigid plates, which provides a basis for its process parameters and subsequent assembly use. It provides a reference for the subsequent measurement of the surface profile and thickness of weak-rigid curved components.