Effect of Tensile and Material Properties on Springback Behavior of DP590 Advanced High Strength Steel During Bending Process

  • Authors

    • Shahrul Azam Abdullah
    • Muhammad Sani Buang
    • Muhammad Azfar Zulkpli
    • Fakhrul Rozi Mokhtar
    • Hashim Abdullah
    2018-11-27
    https://doi.org/10.14419/ijet.v7i4.18.21896
  • Springback, Advanced High Strength Steel, Air V-bending, Design of Experiment, Material Properties

  • Abstract

    Bending process has been used widely in many industries such as automotive. It is considered as an important process in sheet metal forming. The use of advanced high strength steels in automotive industry has remarkably increased in recent years. Amongst these advanced steels, dual phase steels (DP) have good formability but at the same time springback behavior of this high strength steels also usually increases, which is unfavorable especially after bending and during the assembly processes. Material properties and process parameters are some of contributing factors of the springback behavior. This paper presents an investigation of the uniaxial tensile deformation in transverse (90o), diagonal (45o), and rolling (0o) directions and the effect of material properties of DP590 on springback behavior in bending process. Air V-bending was used for the springback measurements on DP590 specimens with different rolling direction, which is 90°, 45° and 0 and various process parameter values which are die radius and gap, punch radius, thickness, and punch travel. A deformation speed of 25 mm/min was used in this experiment. Tensile test was performed to obtain the value of tensile properties such as young modulus, yield strength, strain hardening coefficient and strength coefficient by analysis stress-strain curve. By adaptive Design of Experiments (DOE) using full factorial, analysis of variance (ANOVA) techniques and Taguchi Method (TM) was chosen as intelligent sampling method to investigate the significant factors contributing to springback behavior. The experimental data shows that the rolling direction, die gap, thickness, punch travel, die radius and punch radius are significant parameters contributing to the springback behavior in the V-die bending of DP590 at the significance level of 0.05. The result form this experiment could be used in improvement of predict the springback behavior and also to understanding the material properties of AHSS in order to eliminate springback and achieve good final product.

     

     

  • References

    1. [1] H. Huh, S.-B. Kim, J.-H. Song, and J.-H. Lim, "Dynamic tensile characteristics of TRIP-type and DP-type steel sheets for an auto-body," International Journal of Mechanical Sciences, vol. 50, pp. 918-931, 2008.

      [2] W. Bleck, "Cold-rolled, high-strength sheet steels for auto applications," JOM, vol. 48, pp. 26-30, 1996.

      [3] J. Adamczyk and A. Grajcar, "Structure and mechanical properties of DP-type and TRIP-type sheets obtained after the thermomechanical processing," Journal of Materials Processing Technology, vol. 162, pp. 267-274, 2005.

      [4] S. Chikalthankar, G. Belurkar, and V. Nandedkar, "Factors Affecting on Springback in Sheet Metal Bending: A Review," 2014.

      [5] S. Associates, Bending Of Metals Including "V", Wipe And Rotary Die Operations. Hollywood Drive, Monroe, Michigan, 2005.

      [6] M. A. Farsi and B. Arezoo, "Bending Force and Spring-Back in V-Die-Bending of Perforated Sheet-Metal Components," J. of the Braz. Soc. of Mech. Sci. & Eng., vol. XXXIII, pp. 45-51, 2011.

      [7] T. W. Simpson, A. J. Booker, D. Ghosh, A. A. Giunta, P. N. Koch, and R.-J. Yang, "Approximation methods in multidisciplinary analysis and optimization: a panel discussion," Structural and Multidisciplinary Optimization, vol. 27, pp. 302-313, 2004.

      [8] R. Kazan, M. Fırat, and A. E. Tiryaki, "Prediction of springback in wipe-bending process of sheet metal using neural network," Materials & Design, vol. 30, pp. 418-423, 2// 2009.

      [9] ASTM, "ASTM, A370 − 12a Standard Test Methods and Definitions for Mechanical Testing of Steel Products," in Annual Book of ASTM Standards vol. 3.01, ed. West Conshohocken, Pennsylvania.: American Society for Testing and Materials.

      [10] V. Ponnusami, V. Krithika, R. Madhuram, and S. N. Srivastava, "Biosorption of reactive dye using acid-treated rice husk: Factorial design analysis," Journal of Hazardous Materials, vol. 142, pp. 397-403, 4/2/ 2007.

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  • How to Cite

    Azam Abdullah, S., Sani Buang, M., Azfar Zulkpli, M., Rozi Mokhtar, F., & Abdullah, H. (2018). Effect of Tensile and Material Properties on Springback Behavior of DP590 Advanced High Strength Steel During Bending Process. International Journal of Engineering & Technology, 7(4.18), 166-170. https://doi.org/10.14419/ijet.v7i4.18.21896

    Received date: 2018-11-27

    Accepted date: 2018-11-27

    Published date: 2018-11-27