摘要
在坯料轧制过程中,坯料表层和内部金属流动情况将决定最终棒材成品的尺寸形状和产品的性能。通过Deform-3D有限元软件对20A钢热连轧工艺进行数值模拟,研究了轧制过程中不同坯料圆角半径和轧制温度对轧件表层金属流动的影响,通过轧制过程中心部受力状况及心部的位移大小分析了轧件心部金属流动规律。研究结果表明:增加坯料的圆角半径,适当提高轧制温度有利于减少棒材在轧制过程中圆角处折叠的产生,有助于提高产品质量。
In billet rolling process, the surface and internal flow of the metal will determine the final shape of the finished product and the performance of the product. In this paper, the numerical simulation of hot rolling process of 20a steel was carried out by using DEFORM-3D finite element software. It studied the influence of the rolling process of different billet radius and rolling temperature on the workpieces surface of metal flow, and also had an analysis of the center of the rolling process of displacement force condition and core. The results show that increasing the fillet radius and the rolling temperature properly could help to reduce product defects and improved the quality successfully.
出处
《重庆理工大学学报（自然科学）》
CAS
2017年第7期96-101,共6页
Journal of Chongqing University of Technology：Natural Science
基金
重庆理工大学研究生创新基金资助项目(YCX2015214)
关键词
数值模拟
20A钢
金属流动规律
坯料圆角半径
轧制温度
numerical simulation
20A steel
metal flow law
blanking comer radius
rolling tem-perature
