热力模拟试验进行热挤压工艺开发的方法研究  

Method research on development of hot extrusion process with thermal mechanical simulation tester

作　　者：姚雷[1] 张戈[1] 郑芳[1] 欧新哲[1] YAO Lei ZHANG Ge ZHENG Fang and OU Xinzhe(Research Institute, Baoshan Iron ＆ Steel Co. , Ltd. , Shanghai 201900, China)

机构地区：[1]宝山钢铁股份有限公司研究院,上海201900

出　　处：《宝钢技术》2016年第4期11-15,共5页Baosteel Technology

摘　　要：结合具体钢种探讨如何使用数值模拟与物理模拟相结合的方式制定热挤压工艺的方法。首先,利用数值模拟软件确定在一定规格的条件下管坯在变形过程中的变形情况,如应变速率、应变量等;随后确定选用哪种热模拟变形方式更适合对热挤压过程的模拟;最终通过热模拟试验选择合适的变形工艺（变形温度和挤压速度）。试验结果表明,1 140~1 160℃的挤压温度是可行的。Method of hot extrusion process development is studied with numerical and physical simulation. At first, numerical simulation is used to study deformation of billet during deformed process, such as strain rate, strain. Then how to select deformation type of thermal mechanical is discussed. At last, feasible hot extrusion process is determined with thermal mechanical simulation tester. The results indicate 1 140 ~ 1 160 ℃ is feasible.

关 键 词：热力模拟 扭转 热挤压 数值仿真 

分 类 号：TG376.2[金属学及工艺—金属压力加工]