22MnB5超高强钢热冲压成形工艺及试验
发布时间：2018-09-18 17:58
【摘要】：考虑材料的热物理性能参数、力学性能与温度的关系,利用ABAQUS软件建立了22MnB5超高强钢热冲压过程的热力耦合有限元模型,选用合适的热冲压工艺参数进行数值分析,得到了坯料热冲压成形的应力应变分布,并以板料初始温度为变量,研究不同初始温度对零件厚度分布、回弹及冷却速率的影响。进行了板料初始温度为900℃的22MnB5超高强钢热冲压试验,零件厚度分布及回弹量与模拟结果基本吻合,各区域淬火组织均为板条状马氏体,由于零件底部的淬火冷却速率较大,马氏体组织更加均匀细小。
[Abstract]:Considering the relationship between the material's thermophysical properties, mechanical properties and temperature, a thermo-mechanical coupling finite element model for the hot stamping process of 22MnB5 ultra-high strength steel was established by using ABAQUS software. The appropriate parameters of hot stamping process were selected for numerical analysis. The stress-strain distribution of hot stamping was obtained, and the effect of different initial temperature on thickness distribution, springback and cooling rate was studied with the initial temperature of sheet metal as variable. The hot stamping test of 22MnB5 ultra-high strength steel with the initial temperature of 900 鈩，
本文编号：2248678
[Abstract]:Considering the relationship between the material's thermophysical properties, mechanical properties and temperature, a thermo-mechanical coupling finite element model for the hot stamping process of 22MnB5 ultra-high strength steel was established by using ABAQUS software. The appropriate parameters of hot stamping process were selected for numerical analysis. The stress-strain distribution of hot stamping was obtained, and the effect of different initial temperature on thickness distribution, springback and cooling rate was studied with the initial temperature of sheet metal as variable. The hot stamping test of 22MnB5 ultra-high strength steel with the initial temperature of 900 鈩，
本文编号：2248678
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