Transactions of Materials Processing (소성∙가공)

The Korean Society for Technology of Plasticity and materials processing (한국소성∙가공학회)
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The Process Development of Automotive Light-Weighting Door using High Strength Steel

고장력강을 이용한 자동차 경량 도어 개발 프로세스

  • Jang, D.H. (Dept. of Mechanical Design, Inha Technical College)
  • Received : 2016.12.01
  • Accepted : 2016.12.29
  • Published : 2017.02.01
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Abstract

This paper proposes the process to develop a light-weighting automotive door assembly using high strength steel with low cost penalty. In recent years, the automotive industry is making an effort to reduce the vehicle weight. In this study, inner panels for automotive front door using thinner sheets and quenchable boron steel were designed to reduce the weight of conventional one. In order to evaluate the stiffness properties for the proposed door design, the several static tests were conducted using the finite element method. Based on the simulation results, geometry modifications of the inner panels were taken into account in terms of thickness changes and cost saving. Furthermore, a prototype based on the proposed design has been made, and then static stiffness test carried out. From the results, the proposed door is proved compatible and weight reduction of 11.8% was achieved. It could be a reference process for automotive industry to develop the similar products.

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References

  1. D. H. Jang, 2011, Process Development for Automotive Hybrid Hood using Magnesium Alloy AZ31B Sheet, Trans. Mater. Process, Vol. 20, No. 2, pp. 160-166. https://doi.org/10.5228/KSTP.2011.20.2.160
  2. J. Fang, Y. Gao, G. Sun, Q. Li, 2013, Multiobjective Reliability-based Optimization for Design of a Vehicle Door, Finite Elem. Anal. Des., Vol. 67, pp. 13-21. https://doi.org/10.1016/j.finel.2012.11.007
  3. X. Cui, S. Wang, S. J. Hu, 2008, A Method for Optimal Design of Automotive Body Assembly using Multi-material Construction, Mater. Des., Vol. 29, No. 2, pp. 381-387. https://doi.org/10.1016/j.matdes.2007.01.024
  4. Y. X. Li, Z. Q. Lin, A. Q. Jiang, G. L. Chen, 2003, Use of High Strength Steel Sheet for Lightweight and Crashworthy Car Body, Mater. Des., Vol. 24, No. 3, pp. 177-182. https://doi.org/10.1016/S0261-3069(03)00021-9
  5. Y. X. Li, Z. Q. Lin, A. Q. Jiang, G. L. Chen, 2004, Experimental Study of Glass-fiber Mat Thermoplastic Material Impact Properties and Lightweight Automotive Body Analysis, Mater. Des., Vol. 25, No. 7, pp. 579-585. https://doi.org/10.1016/j.matdes.2004.02.018
  6. D. Y. Kwak, J. H. Jeong, J. S. Cheon, Y. T. Im, 1997, Optimal Design of Composite Hood with Reinforcing Ribs through Stiffness Analysis, Compos. Struct. Vol. 38, No. 1, pp. 351-359. https://doi.org/10.1016/S0263-8223(97)00070-6
  7. D. Carle, G. Blount, 1999, The Suitability of Aluminum as an Alternative Material for Car Bodies, Mater. Des., Vol. 20, No. 5, pp. 267-272. https://doi.org/10.1016/S0261-3069(99)00003-5
  8. A. Deb, M. S. Mahendrakumar, C. Chavan, J. Karve, D. Blankenburg, S. Storen, 2004, Design of an Aluminum-based Vehicle Platform for Front Impact Safety, Int. J. Impact Eng., Vol. 30, No. 8, pp. 1055-1079. https://doi.org/10.1016/j.ijimpeng.2004.04.016
  9. S. Holmberg, B. Nejabat, 2004, Numerical Assessment of Stiffness and Dent Properties of Automotive Exterior Panels, Mater. Des., Vol. 25, No. 5, pp. 361-368 https://doi.org/10.1016/j.matdes.2003.12.005
  10. D. H. Lee, T. J. Kim, J. D. Lim, H. J. Lim, 2009, Development of High Strength Steel Body by Hot Stamping, Trans. Mater. Process, Vol. 18, No. 4, pp. 304-309. https://doi.org/10.5228/KSPP.2009.18.4.304
  11. Z. Shen, X. Qiao, H. Chen, 2013, Proc. of the FISITA 2012, Springer, Berlin Heidelberg, pp. 13-26.
  12. K. W. Nam, S. H. Park, J. S. Yoo, S. M. Lee, 2012, Analysis of Impact Characteristics of Bonded Dissimilar Materials for Center Pillar, Trans. Kor. Soc. Mech. Eng., Vol. 36, No. 8, pp. 929-934. https://doi.org/10.3795/KSME-A.2012.36.8.929
  13. A. V. Bhagwan, G. T. Kridli, 2004, Formability Improvement in Aluminum Tailor-welded Blanks via Material Combinations, J. Manuf. Processes, Vol. 6, No. 2, pp. 134-140. https://doi.org/10.1016/S1526-6125(04)70067-5
  14. R. J. Pallett, R. J. Lark, 2001, The Use of Tailored Blanks in the Manufacture of Construction Components, J. Mater., Process. Technol., Vol. 117, No. 1, pp. 249-254. https://doi.org/10.1016/S0924-0136(01)01124-4