Transactions of Materials and Heat Treatment

Title：Numerical simulation of springback of multi-point forming for plate

Authors： MA Gui-yan FU Wen-zhi LI Ming-zhe(Disless Forming Technology Center Jilin University Changchun Jilin 130022 China)

Unit：

KeyWords： plate multi-point forming springback explicit-implicit algorithm

ClassificationCode：TG386

year,vol(issue):pagenumber：2006,31(4):141-144

Abstract：

Springback is one of the key defects in plate forming,which must be solved in stamping because it affects forming quality.The plate springback matter during the processes of multi poiut forming are simuiated and studies based on explicit-implicit algorithm.taking the column and sphercal workpiece as the example.Dynamic-explicit formulation is employed to analyze the forming processes and the implicit algorithm formulation is used to analyze unloading processes.The Mises' Bilinear isotropic hardening model is applied to simulated the springback processes with different thickness and different curvature and analyze the factors which have effect on the springback.Results indicate that springback ratios is smaller when the thickness and the curvature are bigger.

Funds：

国家自然科学基金资助项目(50275063);; 吉林大学‘985工程’项目资助

Reference：

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