介绍了焊接熔池组织模拟的GBE模型。
The GBE model for simulation of grain structures in welding pool is introduced.
建立了焊接熔池波动方程。
快得多地形成焊接熔池。
焊接熔池平静，飞溅小，不咬边，焊缝成形美观。
Quite molten pool, little spatter and no undercut ensure workpiece be in good welding appearance.
采用弹性体力学理论，对焊接熔池波动力学进行了探讨。
In this paper, the problem of welding pool dynamic vibration was investigated by elastic dynamic theory.
应用被动式视觉传感方法进行CO2焊焊接熔池的形状检测。
The passive visual sensing method was successfully applied to detect the image of weld pool in CO2 welding.
采用CCD比色法测量系统对激光焊接熔池的温度场进行测量。
Temperature measurement with colorimetric method by CCD has been used to measure the temperature of the laser welding pool.
论文着重研究了真空电子束钎焊的温度场和激光焊接熔池温度场的测量。
This thesis researches the temperature field measurement of the welding of electron beam in the vacuum and laser welding pool.
激光深熔焊接的传热过程包括热传导和焊接熔池内熔融材料的对流流动。
The heat transfer in laser deep penetration welding includes heat conduction and convection in the welding pool.
焊接熔池包含有丰富的信息，熔池传感与控制系统的研究是焊接研究一个重要领域。
Because prolific information can be got from the welding pool, the research on the sensing and control of the welding pool is one of the important fields in welding.
综合考虑MIG焊接物理过程，建立了MIG焊接熔池流场和温度场的数值分析模型。
Considering the physical process of MIG welding, the numerical analysis model of the fluid flow and the temperature field has been developed.
不论熔透控制还是焊缝跟踪，都需要实时或离线提取焊接熔池正面或反面的几何参数。
It is necessary to extract molten pool geometrical parameters in real time or to extract back bead width off-line either in seam tracking or in penetration control.
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。
A three-dimensional numerical analysis model of fluid flow and heat transfer in pulsed current TIG weld pool is developed.
通过对螺旋埋弧焊管内焊缝成型和焊接过程的分析，指出焊缝裂纹易产生在焊接熔池脆性温度区。
Through analysis on inside weld forming and welding procedure of SSAW pipe, it pointed out weld crack is easy to appear in brittle temperature zone in welding pool.
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。
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.
文中概括了近年来焊接熔池传热与流体流动模拟所取得的一些进展，总结了影响熔池传热和流体流动的一些主要因素。
In this paper, some progress attained in recent years on heat transfer and fluid flow in weld pool was summarized, then generalized the factors that influenced heat transfer and fluid flow greatly.
探索了将神经网络用于焊接熔池图像处理的方法，采用BP神经网络对二值化熔池图像进行边缘提取，取得了理想的效果。
A neural network method was used to process image of welding pool and the result of detecting the edge of binary image with BP neural network was excellent.
利用获得的焊接熔池图像，采用一定的熔池图像处理算法可以计算出熔池形状的特征参数，以满足过程建模和实时控制的要求。
With the captured images of the weld pool, the shape parameters of the weld pool can be calculated using image processing algorithm, for fulfill the requirement of real time control.
利用建立的三维tIG焊接熔池瞬时行为数值分析模型，对移动热源作用下不锈钢薄板全熔透时熔池动态行为进行了数值分析。
A 3-d transient numerical model for TIG welding stainless steel has been developed to simulate full-penetrated weld pool dynamic behavior.
为了采用图像处理与模式识别的方法对铝合金的焊接质量进行智能控制，必须获取铝合金焊接熔池的清晰图像，然后提取焊接熔池的信息。
In order to control the quality of welding by image processing and pattern recognition, the clear image of the welding pool of aluminum alloy and the information of the welding pool must be obtained.
设计了快速图像处理算法，满足在实际焊接过程中提取熔池形状参数的要求。
A fast algorithm of image processing was designed for extracting the shape parameters of the weld pool in real time.
经实验验证：该系统能够检测到熔池的温度场变化信号，并能控制步进式TIG焊的焊接时间和行走时间。
The experiments show that the variable temperature signal can be detected and the welding time and traveling time can also be controlled in "step" TIG welding by this system.
机器人焊接过程中熔池实时控制系统是焊接柔性加工单元(WFMC)中保证良好焊接质量的一个重要子系统。
Control system of weld quality in real time, which can ensure an excellent weld, is an important sub system of welding flexible manufacturing cell (WFMC).
采取严格清理焊接区、高焊材纯净度、强熔池保护及控制线能量等措施消除了蒙乃尔合金焊接中的气孔和热裂纹，保证了产品焊接质量。
By strictly clearing up weld zone, improving welding material's purity, strengthening molten pool's shield and controlling energy input etc measures, weld zone's hot crack and blowhole were prevented.
应用高效的气体保护熔化极电弧焊焊接铝合金薄板时，容易出现熔池下塌、烧穿等焊接缺陷。
Welding defects such as collapse of molten pool, burning through, would like to happen in the high efficient gas shielded metal arc welding.
横向焊接时由于熔化金属重力的作用，会引起熔池金属下淌，从而产生咬边以及焊瘤等焊接缺陷。
In horizontal position welding, the gravity makes molten metal flow downward and sometimes causes weld defects such as undercut and overlap.
横向焊接时由于熔化金属重力的作用，会引起熔池金属下淌，从而产生咬边以及焊瘤等焊接缺陷。
In horizontal position welding, the gravity makes molten metal flow downward and sometimes causes weld defects such as undercut and overlap.
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