The weld residual stress by PWTH is discussed in order to prove that PWTH can really improve the distribution of stress.
残余拉应力区宽度变大。 文中还给出了焊后热处理后的应力大小情况，以证明焊后热处理能改善应力分布。
Stress-strain tests show that: the weld residual stress and the fusion zone is relatively concentrated, the residual stress of the heat affected zone is relatively small.
应力应变测试表明：焊缝与熔合区是残余应力比较集中的地方，热影响区的残余应力比较小。
The distribution of residual stress of weld joints is analyzed.
并分析了焊接接头残余应力的分布规律。
This article introduced the experiment of residual stress in flat tubeplate head of large scale fuel boiler that was manufactured by cold rotary extruding and butt weld.
本文介绍了大型燃油锅炉经拼板焊接和冷旋压加工制造而成的平管板封头残余应力试验。
Hoop residual stress es in the weld vicinity are tensile in both inner and outer surfaces.
焊缝及附近的环向残余应力在内、外表面均为拉应力。
Residual extend stress is produced at weld toe by TIG dressing, while compressing stress of high values by ultrasonic peening.
TIG熔修处理工艺在焊趾区引入了残余拉应力，而超声冲击在焊趾区形成了较大数值的压缩应力。
The great error could be produced in measuring the residual stress in a weld with the use of calibration coefficient for the base metal instead of the weld metal.
目前通过应变增量计算残余应力的方法仍然是通过事先试验标定，测量超强或低强匹配焊缝中的残余应力时采用的仍然是母材的标定系数，因而会带来严重误差。
The residual stress tests were conducted on different weld structures of repaired pipelines by drill-hole method in order to investigate the influence of welding repair on pipeline integrity.
为了解管道修复中焊接残余应力对管道完整性的影响，用钻孔法分别测试了打孔管道的不同焊接修复结构的残余应力，并和管道螺旋焊缝处的残余应力进行了对比。
The temperature field and residual stress field of unclosed hoop weld were obtained and the results were discussed.
获得了非封闭环焊缝焊接温度场和残余应力场，并对模拟结果进行了分析。
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。
The results show that after TIG arc remelting treatment, the T-joint weld toe area can improve the shape of the weld toe, however, the area till shows a tensile residual stress state.
数值计算结果表明：T型接头焊趾区经过TIG电弧重熔处理后，虽然能够改善焊趾的形状，但该部位仍呈拉伸残余应力状态。
Weld with trailing impactive rolling (WTIR) is a new technique to reduce the residual stress and distortion and prevent hot cracking of thin-walled structure.
随焊冲击碾压是一种控制薄壁结构焊接应力变形、防止热裂纹的新方法。
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。
In the weld transverse residual stress near the tensile stress, also had both compressive stress;
在焊缝附近的横向残余应力既有拉应力，也有压应力；
In the weld transverse residual stress near the tensile stress, also had both compressive stress;
在焊缝附近的横向残余应力既有拉应力，也有压应力；
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