Infrared measurement and simulation of mag-nesium alloy welding temperature field  

作　　者：LIU Liming CHI Mingsheng HUANG Ruisheng SONG Gang ZHOU Yang 

机构地区：[1]State Key Laboratory of Material Surface Modification by Laser, Ion and Electronic Beams, Dalian University of Technology, Dalian 116024, China State Key Laboratory of Material Surface Modification by Laser, Ion and Electronic Beams, Dalian University of Technology, Dalian 116024, China State Key Laboratory of Material Surface Modification by Laser, Ion and Electronic Beams, Dalian University of Technology, Dalian 116024, China State Key Laboratory of Material Surface Modification by Laser, Ion and Electronic Beams, Dalian University of Technology, Dalian 116024, China State Key Laboratory of Material Surface Modification by Laser, Ion and Electronic Beams, Dalian University of Technology, Dalian 116024, China

出　　处：《Science China(Technological Sciences)》2005年第6期706-715,共10页中国科学（技术科学英文版）

摘　　要：The welding temperature field of magnesium alloy AZ31 welded by TIG was measured with the uncooled infrared (IR) thermal imaging technology. The variables in the mathematic mode of welding temperature fields were revised by IR temperature data. Based on the results of simulation, the loss of temperature fields caused by arc interfered was compensated, and a whole temperature field was achieved, which provided a precise and powerful foundation for the investigation of microstructure of the joints.The welding temperature field of magnesium alloy AZ31 welded by TIG was measured with the uncooled infrared (IR) thermal imaging technology. The variables in the mathematic mode of welding temperature fields were revised by IR temperature data. Based on the results of simulation, the loss of temperature fields caused by arc interfered was compensated, and a whole temperature field was achieved, which provided a precise and powerful foundation for the investigation of microstructure of the joints.

关 键 词：MAGNESIUM alloy  temperature fields  IR thermal imager  simulation  microstructure. 

分 类 号：TH[机械工程]