HFW焊管排辊成型焊接过程的三维温度场模拟  

Simulation of Three-dimensional Temperature Field during Welding Process of Cage Roll Forming of HFW660 Pipe

作　　者：胡盛德[1] 董晓俊[1] 程学鹏 丁凡[1] 

机构地区：[1]武汉科技大学材料与冶金学院钢铁冶金及资源利用省部共建教育部重点试验室,湖北武汉430081

出　　处：《热加工工艺》2017年第5期227-230,共4页Hot Working Technology

基　　金：钢铁冶金及资源利用省部共建教育部重点试验室开放基金项目(FMRU200903)

摘　　要：使用ANSYS软件建立了HFW焊管排辊成型的物理模型,考虑了对流、辐射、相变潜热等边界条件,利用APDL语言建立焊管的有限元模型,利用生死单元技术和*DO循环语句实现了热源的加载和移动,通过计算获得了HFW焊管的焊接温度场分布。提取焊管焊缝上表面节点温度随时间的变化曲线,并与实测温度进行了对比,二者基本吻合;沿周向从焊管表面取点,分析其温度变化曲线,发现其焊接过热区在2～5 mm范围,热影响区宽度小于7 mm。The physical model of cage roll forming of HFW pipe was established by using ANSYS software, considering the boundary conditions of convection, radiation, latent heat of phase change, and the finite element model of welded pipe was established with APDL language, the birth and death element technology and DO-loop statement were used to realize the load and movement of heat source. The welding temperature field distribution of HFW welded pipe was obtained by calculation. The temperature curves of nodes in upper surface of welded pipe joint with time were extracted, and compared with the measured temperature, the two were consistent with each other. Taking points along the circumferential direction from the surface of welded pipe, the temperature curves were analyzed. It is found that the weld overheated zone is in the range of 2-5 mm, and the width of the heat affected zone is less than 7 mm.

关 键 词：高频直缝焊管 排辊成型 温度场 焊接温度测量 

分 类 号：TG376.9[金属学及工艺—金属压力加工] TG453.9