焊缝形状

研究表明，电流方式对GTAW焊接的熔池行为和焊缝形状有重要的影响。

The results show that the current pattern has significant effects on the weld pool dynamics and weld bead shape in GTAW .

螺旋埋弧焊管焊缝形状控制与优化数据库

An optimized database system for control of weld bead shape of submerged arc welding on spiral pipes

介绍了利用BP网络建立脉冲激光焊焊缝形状模型。

The welding line shapes model of Pulsed Laser welding used by BP Neutral network has been Introduced and application of BP neutral network have been Introduced .

结果表明所建的BP模型具有较好的自学习和预测能力，BP模型可以根据工艺参数较好的预测焊缝形状。

The simulation results indicated that the BP model has strong abilities in self-learning and predicting . The model possessed the ability to estimate the weld shape by the parameters .

送丝速度过大电弧等离子体屏蔽激光，焊缝形状类似于MIG。

When the wire feeding speed is very high , the weld geometry is similar to that of MIG welding .

1Cr18Ni9Ti电子束焊接工艺参数与焊缝形状的关系研究

Study on Relationship Between Welding Parameters and Weld Shape in Electron Beam Welding

研究电磁搅拌对2219铝铜合金脉冲MIG焊焊缝形状、组织及性能的影响。

Effects of electromagnetic stirring on the shape , structure and mechanical properties of pulse metal inert gas ( MIG ) weld of 2219 Al-Cu alloy were investigated .

基于VB语言设计的系统主程序能实现焊缝形状采集、图像处理、焊缝形状曲线绘制等功能。

Based on the system main program designed with VB language , the functions such as the welds geometry acquisition , the process of the image and the curve plotting of the welds profile can realized .

比较了高功率CO2激光和YAG激光焊接不锈钢时的特点，分析了工艺参数对焊缝形状和接头显微组织的影响。

The weld shape and microstructure of the high power CO 2 laser welding and the high power YAG laser welding stainless steel are compared . The effects of the technical parameters on the weld shape and the microstructure are analyzed .

焊缝形状参数的统计波动对焊趾疲劳裂纹LEFM有效限的影响

The Effect of Statistical Fluctuation of Weld Shape Parameters on LEFM Validity Limit for Fatigue Cracks at Weld Toes

钨极氩弧焊（TIG）修整虽能改善焊缝形状，但弧坑处易于产生裂纹，疲劳寿命降低；利用最小二乘法给出立焊时疲劳寿命的估算式及S&N曲线。

Where as TIG dressing can result in crater cracks and therefore shorten the fatigue lifetime . The S & N curve and life estimation equation under vertical weld after TIG dressing are presented by least square method .

根据以往的经验，焊缝形状是影响接头性能的一个重要因素。

According to experience , weld shape affect welded joint property .

浅谈螺旋缝埋弧焊钢管内焊缝形状的控制技术

Discuss on Control Technology of Inside Weld Shape for SSAW Pipe

作图反演焊缝形状让预测结果直观生动。

Visual shapes made the results to be accepted easily .

人工神经网络在焊缝形状预测中的应用现状与发展趋势

Application and development of artificial neural network applied in prediction of seam shape

钢管直缝埋弧焊焊接规范对焊缝形状的影响

Effect by SAW Process Parameters on Weld Seam Shape of Straight Welded Pipe

电子束焊接栅偏压和阴极发射面积对焊缝形状的影响栅极自耦变压器耦合

Effect of EBW Grid Bias and Cathode Emissive Area on Weld Configuration grid autotransformer coupling

当给定网络输入节点的各个焊接工艺参数值，能够预测网络的输出，即焊缝形状的各个参数。

When welding parameters of input nodes are given , the parameters of welding formation can be predicted .

油罐角焊缝形状对裂纹疲劳寿命的影响

An investigation of the effect of shape of fillet weld joint on the crack fatigue life of oil tank

综合分析实际得到的焊缝形状，归纳出了焊缝形状模型，并定义了焊缝形状参数，进而研究了焊接参数对焊缝形状参数的影响，从而得到焊缝成形规律。

Effect of the welding parameters on the geometric parameters is investigated and then the regularity of the weld shape is obtained .

对所建立的铝合金复合焊热过程模型进行了实验验证，焊缝形状尺寸的计算结果与实验结果总体吻合良好。

The calculated results are in good agreement with experimentally measured ones , so that the mathematical model of hybrid welding aluminum alloys are validated .

Y型管接头在焊接过程中易产生残余应力，焊缝形状的精确度是影响残余应力的重要原因之一。

When Y type pipe joints are welded , remaining stress usually occurs , and it is directly influenced by the accuracy of welding seam .

基于不同焊接工艺参数下多焊道焊缝形状的实验研究，建立了焊缝形状人工神经网络预测模型，利用遗传算法对人工神经网络预测模型进行了优化。

Established artificial neural network prediction model based on engineering test of different welding seam and optimized it using genetic algorithm artificial neural network model .

影响焊接结构疲劳强度的主要因素有焊接缺陷、接头类型、焊缝形状和残余应力等，量化研究这些影响因素有助于提高焊接结构疲劳强度设计和疲劳寿命预测水平。

The Main factors influences fatigue strength of welded structures , such as weld defects , weld joint types , weld shapes and residual stress .

模拟了不同条件下熔池内瞬态温度和速度分布、熔池形态变化以及焊缝形状。

The transient distributions of the temperature and melt flow velocity in the weld pool , weld pool dynamics , and solidified weld bead are simulated .

随着焊接技术的快速发展及应用，无损检测任务必然将会面对各种新的焊缝形状、焊接位置等新课题的挑战。

As the rapid development of welding technology and its application , non-destructive testing will surely face the challenges from welds of different shapes and different welding positions .

焊缝形状主要由焊接速度、焊接电流、离子气的流量和喷嘴到工件的距离4个工艺参数确定。

These output variables were determined according to input variables , which are the welding speed , welding current , ion gas flux and distance between nozzle and weldment .

由于焊缝形状直接影响焊缝质量，准确地预测焊缝形状即建立焊接工艺参数与焊缝形状之间的映射关系具有重要意义。

The weld shape directly influences the weld quality , so it is important to predict the weld shape or establish the mapping between the welding process parameters and the weld shape .

在分析连续和脉冲激光深熔焊焊缝形状特征的基础上，构建了组合热源模型，讨论了热源模型参数的确定方法。

Based on the analysis of continuous and pulse laser beam deep penetration , a combined heat source is constructed and the method of selecting parameters in the heat source are discussed .

严重时，等离子体云甚至会对激光束产生反射和离焦，阻隔激光束的传播，从而导致熔深不足、过烧、焊缝形状波动且不规则，或者损伤聚焦光学镜片；

Excess plasma can block , reflect , or refocus the laser beam , resulting in insufficient penetration , burn - through , irregular weld shape , or contamination of beam delivery optics .