Research on Hot Stamping of Square Cup for Advanced High Strength Steel by Numerical Simulation

2012 ◽  
Vol 9 (9) ◽  
pp. 1165-1170
Author(s):  
Chengxi Lei ◽  
Junjia Cui ◽  
Zhongwen Xing ◽  
Hongya Fu ◽  
Hongsheng Liu
Keyword(s):  
Numerical Simulation ◽  
High Strength Steel ◽  
Hot Stamping ◽  
High Strength ◽  
Advanced High Strength Steel

Research on the Numerical Simulation of Hot Stamping for High Strength Steel

2014 ◽  
Vol 898 ◽  
pp. 136-139
Author(s):  
Chang Feng Men ◽  
Wen Wen Du ◽  
Cui Hong Han
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
High Strength Steel ◽  
Hot Stamping ◽  
High Strength ◽  
Nonlinear Finite Element ◽  
Weight Percentage ◽  
Finite Element Software ◽  
Simulation Results ◽  
Die Temperature

In order to research on the hot stamping property of high strength steel, the stamping forming of USIBOR1500P is simulated by the nonlinear finite element software Dynaform and Ansys/ls-dyna. The initial data simulated on USIBOR1500P is obtained by the hot tensile test. The simulation results show that the martensite weight percentage and Vickers hardness are in inverse proportion to stamping speed and initial die temperature.

scholarly journals Thermomechanical-Phase Transformation Simulation of High-Strength Steel in Hot Stamping

2015 ◽  
Vol 2015 ◽  
pp. 1-12 ◽  
Author(s):  
Wenhua Wu ◽  
Ping Hu ◽  
Guozhe Shen
Keyword(s):  
Numerical Simulation ◽  
Finite Element ◽  
Phase Transformation ◽  
High Strength Steel ◽  
Hot Stamping ◽  
Constitutive Models ◽  
High Strength ◽  
Simulation Software ◽  
Transmission Model ◽  
Stamping Process

The thermomechanical-phase transformation coupled relationship of high-strength steel has important significance in forming the mechanism and numerical simulation of hot stamping. In this study a new numerical simulation module of hot stamping is proposed, which considers thermomechanical-transformation multifield coupled nonlinear and large deformation analysis. In terms of the general shell finite element and 3D tetrahedral finite element analysis methods related to temperature, a coupled heat transmission model for contact interfaces between blank and tools is proposed. Meanwhile, during the hot stamping process, the phase transformation latent heat is introduced into the analysis of temperature field. Next the thermomechanical-transformation coupled constitutive models of the hot stamping are considered. Static explicit finite element formulae are adopted and implemented to perform the full numerical simulations of the hot stamping process. The hot stamping process of typical U-shaped and B-pillar steel is simulated using the KMAS software, and a strong agreement comparison between temperature, equivalent stress, and fraction of martensite simulation and experimental results indicates the validity and efficiency of the hot stamping multifield coupled constitutive models and numerical simulation software KMAS. The temperature simulated results also provide the basic guide for the optimization designs of cooling channels in tools.

Effect of Forming Parameters on Springback of Advanced High Strength Steel DP800

2014 ◽  
Vol 703 ◽  
pp. 182-186
Author(s):  
Nguyen Quang Minh
Keyword(s):  
Numerical Simulation ◽  
Friction Coefficient ◽  
High Strength Steel ◽  
Side Wall ◽  
High Strength ◽  
Advanced High Strength Steel ◽  
Blank Holder Force ◽  
Blank Holder ◽  
Thickness Increase ◽  
Suppression Effect

Springback is one of the main quality defects in the sheet forming. In this paper, numerical simulation is used to analyze the effects of blank holder force, friction coefficient, blank thickness, die corner radius and stroke on springback. The effect of blank holder force and blank thickness on springback is obvious. Springback decreases as the BHF and blank thickness increase. Increasing friction coefficient between tools and blank shows a good suppression effect on springback. Larger die corners increase the curvature of side wall and worsen the springback, but the springback of flange is reduced. The greater the stroke is, the larger the final springback will be.

The Research and Development of Hot Stamping Forming Technology and Production Line in View of High Strength Steel Plate

2013 ◽  
Vol 422 ◽  
pp. 75-79 ◽  
Author(s):  
Li Bao ◽  
Hong Jun Zhang
Keyword(s):  
High Strength Steel ◽  
Steel Plate ◽  
Hot Stamping ◽  
High Strength ◽  
Present Situation ◽  
Advanced High Strength Steel ◽  
The Core ◽  
Forming Technology ◽  
Core Technology ◽  
Ultra High Strength Steel

Steel hot stamping is a kind of new forming technology that advanced high strength steel plate will be heated to austenitic temperature then stamping quickly, quenching in pressure stage through the mould and obtaining the cool speed required, thus obtaining the martensite which owns the intensity of around 1500 MPa of ultra high strength. Hot stamping technology of ultra high strength steel plate is one of the important ways which reduces body weight and improves shock resisitance and crashworthiness. Based on the analysis of hot stamping technology and the research present situation, comparing the key equipments and the core technology of the steel plate with each other. The key problem of high strength steel plate hot stamping area is discussed , present situation and the prospect is pointed out.

Sign in / Sign up

Export Citation Format

Share Document