Self-adaptive adjustment system for technological parameters in superplastic forming diffusion bonding machining process

The invention discloses a self-adaptive adjustment system for technological parameters in a superplastic forming diffusion bonding machining process. The self-adaptive adjustment system comprises an optimal machining parameter setting layer, a process parameter control layer, a process parameter prediction layer, a fault diagnosis layer, a feed-forward compensator and a feedback compensator. The optimal processing parameter setting layer is used for setting an ideal temperature curve and an ideal gas pressure change curve; the process parameter control layer adjusts the internal pressure intensity and the internal heating temperature of the workpiece in the machining process through a fuzzy control method; and the optimal processing parameter setting layer optimizes the set ideal temperature curve and gas pressure change curve by combining the comparison result fed back by the feedback compensator, the predicted values of the internal pressure of the workpiece and the internal heating temperature of the workp