Study on Hot Forming Process and Spring-Back of Ultra -High Strength Steel Based on ABAQUS

Abstract:

To research the key factor that affect on material characteristic of hot stamping, this paper studied the spring-back problem of hot forming of the ultra-high strength steel, "U" shaped part by using the combination method of numerical simulation and experimental verification. By obtaining the data of BR1500 HS isothermal tensile test, it established a "U" shaped part of thermal-mechanical coupled model which is based on ABAQUS to analyze the influences of forming speed and holding time on the forming properties. Simulation analysis showed that: When the forming speed of sheet metal is faster than 35mm/s, the rebound value is small, and further increase has no significant effect on the rebound; after holding 6s, the temperature quenching would become stable. The results verify the reliability of the finite element model. Also the study has provided a theoretical basis for determining the process parameters of the type of steel hot forming.

• Periodical: Advanced Materials Research (Volumes 482-484)
• Pages: 2430-2437
• DOI: https://doi.org/10.4028/www.scientific.net/AMR.482-484.2430
• Online since: February 2012
• Authors: De Sen Yang, Wen Liu, Guang Jun Hu, Jie Zhou, Zhu Su
• Keywords: Forming Characteristics, Hot Forming, Numerical Simulation, Ultra-High Strength

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