在复杂轨迹加工的过程中，传感器是用来解决焊缝纠偏的问题，而磁控技术的引

In the process of complex trajectory processing, the sensor is used to solve the problem of welding seam correction, and the introduction of magnetron technology is to improve the welding process, so the introduction of magnetron technology to weld seam tracking will improve the labor environment and improve welding quality and efficiency. It is of great significance. Aiming at the above problems, a method of welding seam tracking with composite non-uniform longitudinal magnetic field is proposed. Using COMSOL software, a mathematic model of the arc is established with the magnetohydrodynamic model as the arc, and the arc sensing characteristics under the action of the longitudinal magnetic field are studied. In the experiment, a "mountain"-shaped longitudinal magnetic field sensor was used to generate a composite non-uniform longitudinal magnetic field, and a high-speed camera was used to photograph the arc motion trajectory under the action of the composite non-uniform longitudinal magnetic field. The experimental result is that the introduction of the longitudinal magnetic field can change the trajectory of the arc, thereby changing the arc temperature distribution and arc voltage, and initially realizes the improvement of weld tracking and welding process. The results show that the experimental results are in good agreement with the theoretical model, which verifies the effectiveness of the theoretical method.

In the process of complex trajectory processing, sensors are used to solve the problem of weld correction, and the introduction of magnetic control technology is to improve the welding process, so the introduction of magnetic control technology to weld tracking is important to improve the working environment, improve welding quality and efficiency. In view of the above problems, a weld tracking method of composite non-uniform vertical magnetic field is proposed. Using COMSOL software, a mathematical model of magnetic fluid dynamics as an arc is established, and the sensing characteristics of arc under the action of longitudinal magnetic field are studied. In the experiment, a 'mountain' longitudinal magnetic field sensor was used to produce a composite non-uniform longitudinal magnetic field, and a high-speed camera was used to capture the arc motion trajectory under the action of the composite non-uniform longitudinal magnetic field. The experimental result is that the introduction of vertical magnetic field can change the motion trajectory of the arc, thus changing the arc temperature distribution and arc voltage, and the weld tracking and welding process is improved. The results show that the experimental results are in good agreement with the theoretical model, and the validity of the theoretical method is verified.

In the process of complex trajectory processing, sensor is used to solve the problem of weld deviation correction, and the introduction of magnetic control technology is to improve the welding process, so the introduction of magnetic control technology to weld tracking is of great significance to improve the working environment, improve the welding quality and efficiency. To solve the above problems, a weld seam tracking method based on composite non-uniform longitudinal magnetic field is proposed. Using COMSOL software, the MHD model is established as the mathematical model of arc, and the arc sensing characteristics under the action of longitudinal magnetic field are studied. In the experiment, a mountain type longitudinal magnetic field sensor is used to generate a composite non-uniform longitudinal magnetic field, and the arc trajectory under the action of the composite non-uniform longitudinal magnetic field is photographed by a high-speed camera. The experimental results show that the introduction of the longitudinal magnetic field can change the arc trajectory, thus changing the arc temperature distribution and arc voltage, and preliminarily realizing the improvement of weld seam tracking and welding process. The results show that the experimental results are in good agreement with the theoretical model, which verifies the effectiveness of the theoretical method.<br>