Abstract: In the four basic factors on the intellectuali zation of sheet metal forming, the real-time identifica tion of the material performance parameter and the prediction of the optimum technological parameter are the two most complicated technical keys. The accuracy of identification and prediction will have direct effect on the success of the intelligence control.Taking the intelligence control of V-shape free bending of wide sheet metal as an object of study ,a feed front neural network model is used based on LM algorithm. By means of real-time monitoring and measure to identify the material performance parameter and predict the optimum technological parameter, and satisfied accuracy of convergence is achieved . Within the sample database range, generalization precisions of identification and prediction are within 5% when convergence precision is within 0.1%.

Key words: Identification, Intellectualization, Neural network, Prediction, V-shape free bending