埋弧焊磁控电弧焊缝跟踪系统中的横向磁场ANSYS模拟

针对埋弧焊磁控电弧焊缝跟踪系统中磁控电弧传感器产生的外加横向磁场,文中采用有限元分析方法建立了由磁控电弧传感器产生的横向磁场计算模型.应用ANSYS软件对横向磁场进行了模拟;对该横向磁场的纵截面分布、磁流密度矢量的分布规律进行了仿真;并对模拟结果的偏差进行了分析.实际测试结果说明了磁感应强度模拟值与实测值的一致性.针对励磁电流对焊接电弧运动状态的影响进行了实际焊接试验.结果表明,焊接电弧随励磁电流的增大而摆动,且励磁电流越大电弧摆动幅度也越大.

Numerical simulation on transverse magnetic field of magnetic control arc sensor for submerged arc welding by ANSYS

To analyze the phenomena of extra transverse magnetic field excited by the magnetic control arc sensor in submerged arc welding seam tracking system,finite element method was adopted.The simulation model of the transverse magnetic field was set up and FSW code ANSYS was utlized to calculate the according model.Distribution of longitudinal section of transverse field in magnetic control arc sensor and magnetic density vector were both analyzed.Then the consistency of simulated value and measured value of magnetic induction density were verified.After that the deviation of simulated result were tested.Finally,the welding arc the state of motion influenced by exciting current were also researched.The results showed that the welding arc swang with the increasing excitation current,the greater excitation current,the greater arc swings greater.