Method and system for optimizing forming process parameters of tailor-welded blank square box parts

Abstract

The invention discloses a tailor-welded blank square box shaped part forming process parameter optimization method and system. The first judgment matrix of the criterion layer to the target layer andthe second judgment matrix of the scheme layer to the criterion layer are established according to the analytic hierarchy process; calculating index weights of process parameters of the scheme layer relative to the process parameters of the target layer according to the first judgment matrix and the second judgment matrix; according to the index weights, the correlation coefficients among the process parameters of the criterion layer are determined by using the grey theory. According to the correlation coefficient, the correlation degree of the technological parameters of the criterion layer is obtained. Determining the optimal combination of the process parameters of the target layer according to the maximum correlation degree; the optimal combination of the process parameters of the target layer is the optimal combination of the forming process parameters of the tailor-welded blank square box. This method or system can solve the problem that the quality of tailor-welded blank can notbe controlled accurately in the process of stamping and forming.

Description

technical field [0001] The present invention relates to the field of tailor welded blank forming, in particular to a method and system for optimizing process parameters of tailor welded blank square box-shaped parts. Background technique [0002] With the rapid development of my country's automobile manufacturing industry, automobile energy shortage and environmental pollution are becoming increasingly serious, and automobile lightweight has received more and more attention in recent years. Tailored welded blank forming technology, as its most important way of realization, is also more and more applied to the automobile manufacturing industry. However, there are many process parameters involved in the forming of tailor welded blanks, each parameter has different influence on the forming quality, and they intersect with each other, it is difficult to accurately establish the relationship between the process parameters and the forming quality, and there is a certain difficulty...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a method and system for optimizing process parameters of tailor welded blank square box parts, which solves the problem of inaccurate quality control in the stamping process of tailor welded blank parts

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