Compensation factor method for modeling springback of auto parts constructed with high-strength steel |
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Authors: | X. -K. Zhang G. J. Zheng J. -N. Hu C. G. Li P. Hu |
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Affiliation: | 1.School of Automotive Engineering, Faculty of Vehicle Engineering and Mechanics, State Key Laboratory of Structural Analysis for Industrial Equipment,Dalian University of Technology,Dalian,China;2.Geely Automobile Research Institute CO. LTD,Hangzhou,China;3.School of Aerospace and Aeronautics in Tsinghua University,Beijing,China;4.First Automobile Workers,Changchun,China |
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Abstract: | To more accurately manufacture an auto-body workpiece, a predictive compensation factor method was used to predict the workpiece’s springback, and the factors influencing springback are introduced. Based on this method, a numerical simulation was produced to simulate the springback compensation after distortion of the workpiece. After analyzing the simulation results, a compensation method was introduced to reduce the springback influence on an actual workpiece. Here, we used a fortified B-pillar, which is a kind of longitudinal stand-frame workpiece, made with a high-strength steel material (TRIP700). The simulation results indicated that the proposed method is feasible and can be efficiently used for predicting the distortion of springback compensation of an auto-body workpiece. |
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