High Accuracy V-Bending Process Control with an On-Line Database and Modified Fuzzy Models

抄録

In this study, a high precision V-bending process control system incorporating an database and modified fuzzy model was developed. Information including the punch force-stroke curve measured in the bending process was stored in the database and applied directly to the process control. In the control system, a new evaluation method, which is called the vectorial evaluation method, was proposed to check irregularities of information in the experimental database, and two modified fuzzy models were developed to compensate defects in the experimental database. Simulation of the control system using the experimental results verified that the proposed control system significantly improves the accuracy and reliability of the process.