Transactions of Materials and Heat Treatment

Title：Study and application on full surface springback compensation technology

Authors： Guo Tao

Unit： Stamping Process Development SAIC Volkswagen

KeyWords： springback compensation local compensation full surface compensation fender constraint noise

ClassificationCode：TG386

year,vol(issue):pagenumber：2024,49(4):82-89

Abstract：

A solution was proposed to improve the shortcomings of the local springback compensation method, and for the offset problem of the lower profile for fender, the springback law of part was analyzed, and the fundamental reason for the limitations of the local springback compensation method was that the springback trend of surfaces from arch to flat could not be compensated integraly and accurately. Then, the method of full surface springback compensation was proposed, and the key points for implementing this method was obtained based on the analysis of its reverse solution principle, including minimizing the springback of the process, ensuring the robustness of the solution, eliminating the constraint noise and ensuring the consistency of surface quality and cross-section line leght for outer panel. Furthermore, the implementation steps of this method was provided and applied to a certain fender. The dimensional measurement results of the first full-process part show that the deviation of A-surface is within 0.3 mm, and the profile offset is within 0.2 mm, indicating that the parts that meet the dimensional tolerance requirements can be obtained using this method.

Funds：

作者简介：郭涛（1988-），男，硕士，工程师 E-mail：guotao1988@163.com

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