汽车半轴热锻模工况仿真及机器人电弧增材制造路径生成  

Working Condition Simulation of Hot Forging Die for Automobile Half Shaft and Path Generation of Robot Wire Arc Additive Manufacturing

作　　者：范中淹 张元好 刘建永 杨伟 Fan Zhongyan;Zhang Yuanhao;Liu Jianyong;Yang Wei(School of Materials Science&Engineering,Hubei University of Automotive Technology,Shiyan 442002,China)

机构地区：[1]湖北汽车工业学院材料科学与工程学院,湖北十堰442002

出　　处：《湖北汽车工业学院学报》2024年第1期38-43,共6页Journal of Hubei University Of Automotive Technology

摘　　要：为了确定热锻模具修复方案,使用有限元仿真软件模拟汽车半轴摆碾成形过程,生成机器人电弧增材制造路径。当连锻次数达到20次后,模具进入热平衡状态,中心圆台表层温度稳定在788℃,表层与540℃等温线相对深度约为28mm,应力场510MPa以上的模具增材层约为26.3mm,确定使用温度场划分模具增材制造区域。利用MATLAB提取540℃以上的点云部位,逆向建立3D模型,进行路径规划并在焊接机器人上运行。In order to determine the repair scheme of the hot forging die,the finite element simulation software was used to simulate the forming process of the automobile half shaft by rotary forging,and the robot wire arc additive manufacturing path was generated.When continuously forged 20 times,the die entered a thermal equilibrium state.The surface temperature of the central round table was stable at 788℃,and the relative depth of the surface layer and the 540℃isotherm was about 28 mm.In addi-tion,the additive layer of the die with a stress field of above 510 MPa was about 26.3 mm.The tempera-ture field was used to divide the additive manufacturing area of the die.MATLAB was used to extract the point cloud parts above 540℃,and the 3D model was established reversely.The path planning was carried out and used in the welding robot.

关 键 词：热锻模 汽车半轴 温度场 路径规划 

分 类 号：TG315.2[金属学及工艺—金属压力加工]