Development of In-process Fuzzy Control System for T-shape Tube Hydroforming☆

Abstract To develop an in-process fuzzy control system for tube hydroforming, a new die-embedded sensing system was developed and fuzzy control was used to determine adaptively suitable loading path. T-shape tube hydroforming experiments were conducted to confirm the validity of die-embedded system and in-process fuzzy control system. As a result, the validity of the die-embedded sensing system was confirmed. Besides, Evaluation functions were measured and the loading path was automatically determined in real-time. Furthermore, a T-shape tube was formed with a well wall thickness distribution. Consequently, it is confirmed that the developed in-process fuzzy control system is effective for T-shape tube hydroforming.