摘要
Ultrasound-magnetic field coaxial hybrid Gas Tungsten Arc Welding(U-M-GTAW)is proposed as a means to control arc characteristics.The arc characteristics and the mechanism to change them,in an ultrasound-magnetic field coaxial hybrid GTAW,were studied by both experimental and theoretical analyses.The results showed that a periodic rotation and compression of the arc shape were obtained in U-M-GTAW and the arc energy was also enhanced.The most obvious compression of the arc shape in U-M-GTAW was obtained,compared with GTAW,M-GTAW and U-GTAW.At the same time,a periodic rotation of the arc was observed in U-M-GTAW.The geometric parameters of the arc shape in U-M-GTAW are reduced more than double compared with traditional GTAW.The arc voltage in the hybrid GTAW was increased,especially in the U-M-GTAW.The electromagnetic force and acoustic radiation force were the main factors for the change of arc characteristics in the U-M-GTAW.
作者
Chao CHEN
Wenlong LI
Chenglei FAN
Wenbo DU
Huijing ZHANG
陈超;李文龙;范成磊;杜文博;张慧婧(College of Mechanical and Electrical Engineering,Northeast Forestry University,Harbin 150040,People’s Republic of China;State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,Harbin 150001,People’s Republic of China;National Key Laboratory for Remanufacturing,Army Academy of Armored Forces,Beijing 100072,People’s Republic of China)
基金
supported by the Fundamental Research Funds for the Central Universities of China(No.2572021BF02).
