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论文类型：期刊论文

发表时间：2015-01-01

发表刊物：Metallurgical and Mining Industry

收录刊物：EI、Scopus

卷号：7

期号：11

页面范围：232-237

ISSN号：20760507

摘要：High-strength Boron steel is used in automotive field, and as some important structural parts of automobile body for its light weight and high strength. But Boron steel sheet's formability is not well and it is prone to have punching defects at room temperature, so it needs to be heated for being improved its formability which is called hot stamping process currently. Using numerical simulation to study hot stamping process of steel sheet can greatly reduce development cycle of stamping die and reduce costs. Especially in the initial design stage of hot stamping die, it needs a simulation tool which can quickly simulate the formability at high temperatures according the shape of the workpiece, and which does not require much tooling information. In the paper, with one-step inverse forming method based on deformation theory, the formability of BH1500 Boron steel was firstly simulated in the state of austenite at high temperature, the main calculation formulas and method was proposed. And the simulation results were compared with the experimental values. The results shows that the simulation and experimental results are basically the same, and the method can evaluate the formability of boron steel in high temperature conditions with only little die information effectively and quickly. It plays an important role in the early stages of stamping die design.