采用塑性变形理论和刚粘塑性材料模型研究了直流电阻对焊接头的塑性变形。
The joint deformation of DC upset butt welding was studied by using theory of plastic deformation and rigid-viscosity plastic material model.
电阻焊质量在线评估的一种有效方法是对焊接过程中的重要物理量进行实时采集处理和显示。
An effective way for online quality evaluation of resistance welding is to acquire important data and display them as dynamic curves during welding.
铝合金电阻点焊技术是一项即将在汽车制造中获得广泛应用的技术，电极状况对焊接质量影响较大。
Resistance spot welding technology of aluminum alloy is to be applied widely to auto industry. Electrodecondition impacts heavily on spot welding quality.
因此，为了保证焊接质量，对电阻点焊电流的高精度实时检测就显得愈为重要。
Therefore, in order to engage for welding quality, the high degree of accuracy real-time detection becomes more and more important.
由电阻焊接方法焊接的超低碳钢支架对磁性破坏较大，导致显示器再转向后出现图像滞后和色偏等失真现象，需要进行焊后热处理。
Resistance welding method has great destroy to the magnetic property of the seam, which will cause image distortion of the display when swerving, and post heat treatments are needed.
焊接电流与电压的准确测量对精密控制逆变电阻点焊电源和保证焊接质量至关重要。
The accurate measurement of welding current and voltage is very important to the exact control of resistance spot welding inverter and welding quality.
焊接电流对电阻点焊有着重要的影响，因此在点焊过程中实时显示焊接电流波形是十分必要的。
Spot welding is greatly affected by the current, so the real-time display of current waveform in the welding is very necessary.
板材直流电阻对焊过程中，对接端面沿板宽方向的温度分布对焊接接头的质量有很大的影响。
In the process of DC upset butt welding, the joint quality was strongly effected by the temperature distribution in the direction of the plate width.
采用位移门槛电压控制焊接过程，对Q 235 - A钢进行了变压式和等压式扁钢带直流电阻对焊试验。
A displacement threshold was used to control DC upset butt welding process, and constant pressure and varied pressure tests were carried out on Q235 a steel strips.
采用试验和有限元分析相结合的方法，考察了锻压力对铝合金电阻点焊接头中残余应力和接头疲劳行为的影响。
Using experimental and finite element analysis methods, the effects of electrode forging force are investigated on residual stress and fatigue behavior of spot welded aluminum alloy joints.
计算结果表明：三相次级整流电阻焊焊接电流基本上是连续的，负载感抗变化对其影响很小。
The calculating result shows that the welding current of 3-phase DC resistance weld is continuous, and the changing of induction reactance has little influence on it.
计算结果表明：三相次级整流电阻焊焊接电流基本上是连续的，负载感抗变化对其影响很小。
The calculating result shows that the welding current of 3-phase DC resistance weld is continuous, and the changing of induction reactance has little influence on it.
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