Analytic Quantitative Descriptive Model Of Intellectural Bending Process

The intellectualization of sheet metal forming is the process in which, through an organic combination of sheet metal forming theory with control theory and computer science, and based on the characteristics of the workpiece to be worked, the material properties are identified and the optimum technique parameters are predicted on-line by means of easily monitored physical quantities and the forming is automated to those parameters thus determined.The intellectualization of bending is an important research field of sheet metal forming intellectualization. The exact quantitative description to bending forming process is base of intellectualized control system, The height of quantitative descriptive accuracy decides the success or failure of intellectualized control system identifiable accuracy and the predictive accuracy. This thesis quantitatively describes V-free bending process by using theoretical analysis method. At the same time, this thesis revises analytic model by using numerical simulation and the experimental mechanical analysis method.This thesis establishes the quantitative descriptive model of theoretical analysis in V-free bending intellectualization, analyses and derivates theoretical analysis formula of three kinds of bending deformations models for the plate, and firstly derivates theoretical analysis formula of force and stroke by using beam bending theory and energy method. This thesis carries on programming calculation to theoretical analysis using MATLAB and revises deformations models using ANSYS numerical simulation. The portable data acquisition system of the LabVIEW completes acquisition experiment of force and stroke. The experiment approves that p-h curve of third kind model for V-free bending consonants with actual V-free bending's by comparing and analysing them. It is significant for further study of identification and prediction sheet forming intellectualization.