ANAND viscoplastic constitutive equation was introduced into the FE model for calculation of the reduction of welding residual stresses during the post weld heat treatment.
将ANAND粘塑性本构关系引入到焊后热处理消除残余应力的有限元计算中。
The welding current, arc voltage, preset current, the period and ratio of pulse, base current, down slope time, gas pre and post flow time are sampled, calculated and controlled by microprocessor.
单片机对焊接电流、电弧电压、电流给定、脉冲周期、占空比、基值电流、收弧电流衰减时间、前气和后气时间等焊接参数进行采样、计算和控制。
The result shows that it is more reasonable, safe and reliable to adopt procedure with warm up before welding and post heat treatment after welding.
结果表明：采用焊前预热和焊后热处理的焊接工艺方案所获得的焊接接头比不采用以上措施获得的焊接接头更为合理，应用更安全、可靠。
Experiment results of welding residual stress and the stress after local post weld heat treatment are compared with numerical simulation.
给出了焊接残余应力与局部焊后热处理应力的试验结果与模拟结果的对比。
Welding does not occur after pores, collapse, thermal strain and microstructure changes and so on. Significantly reduce post -weld treatment process.
激光焊点直径小、受热范围小，焊后不会出现气孔、塌陷、热应变及金相组织变化等现象，极大减小焊后处理工序。
This paper analyzed the welding capability of the new type heat resistant steel and discussed its welding technology, measures of argon filling and the control points of post weld heat treatment.
分析了新型耐热钢（T／P92）焊接性能，并对其焊接工艺、充氩措施及焊后热处理控制要点进行论述。
By use of the method of welding thermal simulation, the morphology in HAZ was simulated and the post-weld heat treatment under different tempering parameter to the test specimen was carried out.
采用焊接热模拟的方法，模拟HAZ粗晶区组织，并在不同回火参数下对试样进行焊后热处理。
The experiment results show that the welding defects can be decreased by using preheat and post-weld heat treatment.
试验表明，采取焊前预热，焊后热处理的TIG焊工艺进行焊接可以减少焊接缺陷的产生。
The technological parameter of post-welded heat-treatment is determined by welding thermal simulation test.
用焊接热模拟方法确定了焊后热处理工艺参数。
Some negative effects may be caused during post welding heat treatment of certain component and steel for stress-relief.
特别指出对某些钢材或构件进行热处理，在消除应力的同时，也可能带来一些负面的作用。
The results show that post welding residual stress concentrates in the vicinity of two weld and the maximum residual stress appears in the starting position of TIG weld.
结果表明，焊接残余应力集中分布在两种焊缝附近，最大残余应力出现在TIG焊缝起焊位置。
Based on the pre-process, numerical simulation and post-process, the application of visualization technique, which is used in the numerical analysis of resistance spot welding process, is introduced.
从前置处理、数值计算及后置处理三个方面出发，着重介绍可视化技术在电阻点焊过程数值分析软件中的应用。
Based on the pre-process, numerical simulation and post-process, the application of visualization technique, which is used in the numerical analysis of resistance spot welding process, is introduced.
从前置处理、数值计算及后置处理三个方面出发，着重介绍可视化技术在电阻点焊过程数值分析软件中的应用。
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