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- An approach is proposed that this deviation can be obtained by using the weld pool image centroid and a Kalman filter. 为此提出一种利用熔池图像质心和卡尔曼滤波来间接获取电弧与焊缝偏差的方法。
- In pulsed GTAW with wire filler,the variation of the weld pool shape could be observed from the weld pool image,such as the pool width,length,rear angles,surface height,etc. 在填丝脉冲GTAW过程中,从熔池图像上可以观察到熔池形状的变化,如宽度、长度、后拖角和表面高度等。熟练焊工可以根据变化的情况实时地调整焊接规范,保证焊缝成形稳定。
- Passive visual sensing method is the major method for sensing welding process, the principle of which is to capture weld pool image by the illumination of electric arc. 被动式视觉传感方法是焊接过程传感的一种主要方法，其主要原理是利用电弧光照射熔池表面获得熔池图像。
- Keywords weld pool image centroid;weld position;measuring model; 熔池图像质心;焊缝位置;测量模型;
- Low Cost Automatic Detecting of Weld Pool Image in Constant Current TIG Welding 连续电流TIG焊熔池图像的低成本自动化检测
- weld pool image 熔池图像
- Monitoring and processing of weld pool images in pulsed gas metal arc welding 脉冲熔化极气体保护焊熔池图像的检测与处理
- Robotic vision sensing system for welding pool image taking and processing in aluminum alloy MIG welding process 用于铝合金MIG焊的机器人熔池视觉传感系统
- But current density and heat flux on deformed weld pool surface are not similar Gauss distribution. 而变形熔池表面的电流密度和热流密度分布则不再符合近似的高斯分布。
- In the experiment, two tungsten electrodes set on both sides of weld pool provide transverse current to the pool. 实验通过布置在熔池两侧并随激光同步运动的钨电极向熔池中提供横向电流。
- Firstly, the effect of the deformation in the molten weld pool was eliminated after the element rebirth method was adopted. 首先,通过单元再生方案,消除了焊接构件中熔池变形对熔池尾部应力应变场的影响。
- The calculated results of current density and heat flux on flat weld pool surface using model established in this paper are agreed with experiment. 用本模型计算出的平坦熔池表面电流密度和热流密度的分布与试验结果显示了很好的一致性。
- However, there is a little increase of the weld pool temperature.While the thickness increases to an extent, the RSF show little increase. 当壁厚增大到一定程度时，在线焊接管道的剩余强度因子增大速度减缓。
- A three-dimensional numerical analysis model of fluid flow and heat transfer in pulsed current TIG weld pool is developed. 对运动电弧作用下脉冲TIG焊接熔池流场与热场动态变化过程建立了三维数学模型。
- Based on the characteristics of the weld pool which are obtained through the analysis of a great lot of images,an image processing algorithm that can detect the integral edge of the weld pool is developed,which doesn't need to reduce the disturbance. 对大量的焊接熔池图像进行了分析 ,根据图像的特点 ,设计出不需要滤波的图像边缘检测算法 ,检测出了连续电流TIG焊接熔池的整个边缘。
- The calculating formulas of top and bottom pool-surface deformation in TIG full-penetration weld pool is developed based on principles of fluid mechanics and variation calculus. 根据流体力学理论和变分法原理，推导出了熔透情况下TIG焊接熔池上表面和下表面变形的方程。
- A robotic vision sensing system for taking and processing the image of MIG welding pool of aluminum alloy is established. 建立了用于铝合金脉冲MIG焊熔池图像检测的机器人视觉传感系统。
- The GBE model for simulation of grain structures in welding pool is introduced. 介绍了焊接熔池组织模拟的GBE模型。
- Special image sensor based on ordinary industrial CCD camera is developed to detect pool images during CO2 short circuiting arc welding at real time. 针对CO2短路过渡焊接熔池图像实时检测的要求,研制了一种基于普通工业CCD摄像机的专用传感器。
- A passive vision sensing system to acquire the image of molten pool in MAG welding was set up and many typical molten pool images were obtained. 针对MAG焊特点,利用被动式熔池视觉传感系统,采集到清晰的熔池图像;
