基于SYSWELD的T型接头GMAW焊接热过程模拟及其应用  

Simulation and Application of the GMAW Welding Thermal Process for T-joint Weld Based on SYSWELD

作　　者：卢庆亮 曹永华 杨云 栾守成 左增民 华鹏[3] 孙俊生[3] LU Qingliang;CAO Yonghua;YANG Yun;LUAN Shoucheng;ZUO Zengmin;HUA Peng;SUN Junsheng(Jinan Heavy Machinery Joint-stock Co.,Ltd.,Jinan 250109;Heze Guangtai Wear-resistant Products Co.,Ltd,Heze 274600;School of Materials and Engineering,Shandong University,Jinan 250061)

机构地区：[1]济南重工股份有限公司,济南250109 [2]菏泽广泰耐磨制品股份有限公司,菏泽274600 [3]山东大学材料学院,济南250061

出　　处：《现代制造技术与装备》2019年第10期1-6,共6页Modern Manufacturing Technology and Equipment

摘　　要：综合考虑GMAW熔滴过渡带入熔池的热焓量、余高以及相变潜热等因素,基于SYSWELD建立了T型接头GMAW焊接传热三维数学模型,并通过系列焊接工艺试验确定了焊接线能量对双椭球热源参数的影响规律。通过计算,获得了不同焊接热输入条件下JB800钢T型接头的焊缝几何参数,得到了焊接工艺条件对焊接热循环及其主要参数的影响规律。基于热过程模拟结果,借助JB800钢SH-CCT图,实现了对CGHAZ区组织、硬度预测和控制。另外,还进行了JB800钢T型接头焊接工艺试验,通过测试焊缝几何尺寸和热循环,并与计算结果比较,验证了模型的可靠性。Considering the factors such as the heat quantity, the residual height and the latent heat of phase change of the GMAW droplet transfer into the molten pool, a three-dimensional mathematical model of the TMA joint GMAW welding heat transfer was established based on SYSWELD, and the welding line energy was determined through a series of welding process tests. The influence law of the heat source parameters of the double ellipsoid. Through the calculation, the weld geometry parameters of JB800 steel T-joint under different welding heat input conditions are obtained, and the influence of welding process conditions on welding thermal cycle and its main parameters is obtained. Based on the thermal process simulation results, the JB800 steel SH-CCT map was used to predict the structure and hardness of the CGHAZ zone. In addition, JB800 steel T-joint welding process test was carried out. The weld geometry and thermal cycle were tested and compared with the calculation results to verify the reliability of the model.

关 键 词：T型接头 三维传热模型 焊接热 

分 类 号：TG457.11[金属学及工艺—焊接]