摘要
为了研究冷却系统对高强度钢热成形模具表面温度的影响,运用ABAQUS软件对22MnB5高强度钢热成形过程进行了数值模拟。通过模具表面温度变化分析了冷却效果。研究了冷却系统中冷却水流速和冷却管道孔径工艺参数对热成形模具表面温度的影响。结果表明,冷却水流速越大,模具表面温度越低;冷却管道孔径越大,为保证模具强度,冷却管道中心距离模具表面尺寸越大,冷却管道数量越少,模具表面温度越高。
In order to research the influence of the cooling system on the surface temperature of hot stamping die for high strength steel, hot forming process of 22MnB5 high strength steel was numerically simulated by using the software ABAQUS. The effect of the cooling system was analyzed by the change of the die surface temperature. Influences of processing parameters such as flow rate of cooling water and diameter of cooling duct on the die surface temperature were investigated. The results show that the greater flow rate of the cooling water is, the lower temperature of the die surface is; the greater diameter of the cooling duct is, to ensure the strength of the die, the larger distance between cooling duct center and the die surface is, the fewer number of the cooling ducts is, and the higher temperature of the die surface is.
出处
《热加工工艺》
CSCD
北大核心
2014年第1期132-133,139,共3页
Hot Working Technology
关键词
高强度钢
热成形
冷却系统
数值模拟
high strength steel
hot stamping
cooling system
numerical simulation
