Application and Lightweight Research of QP1180 High Strength Steel in Autobody Reinforcement Part

DOI

10.2991/978-94-6463-114-2_43How to use a DOI?

Keywords

QP1180; High strength steel; Structural optimization; Body lightweight

Abstract

In response to the severe cracking and wrinkling of the reinforcement part of front side rail, this research designs a replacement solution of high-strength plastic accumulation material (QP1180) and verifies its feasibility through structural optimization, process analysis, mold debugging, and extensive experiments. First, the material thickness is thinned and validated with new data for crash simulations. Subsequently, a process plan is developed based on structural characteristics and high-strength steel material properties, accompanied by a simulation analysis of the initial structure. The simulation results, such as local cracking, wrinkling, and material stacking, optimize the structure in multiple rounds to obtain data and process solutions that meet the formability. Thereafter, CAE simulation of the stamping process is carried out to improve the efficiency of the tool manufacturing. The simulation results demonstrate that the process performance meets the requirements and the rebound control effect is achieved by adopting 1:1 ratio for pre-deformation compensation. Ultimately, the sample development is completed on the basis of three rounds of mold debugging. The size deviation is assessed to be within 1.0 mm by blue light scanning, which meets the design requirements. The study accentuates that the maximum thinning rate of QP1180 material should not exceed 15%, providing insights into its application on vehicles.

Copyright

© 2023 The Author(s)

Open Access

Open Access This chapter is licensed under the terms of the Creative Commons Attribution-NonCommercial 4.0 International License (http://creativecommons.org/licenses/by-nc/4.0/), which permits any noncommercial use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license and indicate if changes were made.

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TY  - CONF
AU  - B. Liu
AU  - J. Yang
AU  - X. Y. Zhang
AU  - Q. Yang
AU  - Z. Y. Li
AU  - G. Feng
AU  - Z. B. Wang
AU  - J. S. Zhang
AU  - X. Q. Li
PY  - 2023
DA  - 2023/03/02
TI  - Application and Lightweight Research of QP1180 High Strength Steel in Autobody Reinforcement Part
BT  - Proceedings of the 6th International Conference on Advanced High Strength Steel and Press Hardening (ICHSU 2022)
PB  - Atlantis Press
SP  - 311
EP  - 316
SN  - 2590-3217
UR  - https://doi.org/10.2991/978-94-6463-114-2_43
DO  - 10.2991/978-94-6463-114-2_43
ID  - Liu2023
ER  -