Thermal-elastic-plastic and inherent strains FE methods are two means, which have been applied to the prediction of welding deformation.
热弹塑性有限元法和固有应变法是焊接变形预测的两种主要数值方法。
This paper focuses on the 600 tons of steel gantry welding and welding deformation.
本文重点研究了600吨龙门吊钢结构的焊接工艺及焊接变形问题。
The main causes resulting in welding deformation of stainless pipelines have been analysed.
分析了不锈钢管道焊接变形产生的主要原因。
This system is also used to reduce welding deformation of real structures by optimizing processing.
该系统还在实际焊接构件的变形控制中得到应用。
Therefore, it is necessary to forecast and control the overall structure of the welding deformation.
因此，预测并控制整个结构的焊接变形量是有必要的。
Controlling on grid welding deformation and welding stress are the key problems for assuring grid quality.
控制网架的焊接变形与焊接应力是保证网架质量的关键之一。
The welding deformation not only have bad effect on the good appearance, but also can result in all kinds of weld cracks.
焊接变形不但影响美观，还可能会引发各种焊接裂纹。
There are many factors that can result in the welding deformation, like welding procedure or residual stress of the material.
引起焊接变形的因素较多，有可能是焊接工艺引起，也有可能是材料本身残余应力引起。
It requires high level for manufacturing technology and welding deformation control because the structure of cross-section is special.
十字形断面柱的结构特殊，对制作工艺及焊接变形控制要求较高。
Blade positioning, workpiece demoulding and slipping caused by welding deformation are solved. The production efficiency is increased.
解决了叶片定位、工件脱模、焊接变形引起的滑移难题，提高了生产效率。
Adopting movable vertical rib plate welding process can not only prevent welding deformation but also enhance working efficiency evidently.
提出的采用活动式立筋板焊接操作工艺不仅可以防止焊接变形，而且明显提高工效。
How to reduce and control welding deformation is a major issue in the process of manufacturing the bogie frame of the high-speed locomotive.
高速动力车转向架构架生产过程中的主要问题是如何控制焊接变形。
This paper introduces the measure, welding method and inspection result to prevent the welding deformation formation of spiral-seam pipe header after tapping.
介绍了在螺旋焊缝汇管上焊接支管时的防变形措施、焊接方法和检验结果。
Temperature field distribution of weldment, which reflects complex welding heat process, is a basic on studying welding deformation, residual stress and so on.
焊件中的温度场分布反映了复杂的焊接热过程，是研究焊接变形、焊后残余应力等状况的基础。
In the manufacturing of gate, we use many welding deformation control techniques and adjust the welding sequences to guarantee the final welding quality of gate.
通过采用预留收缩余量和反变形量，钢性加固，合理选择焊接方法，调整焊接顺序等措施保障了产品焊接最终质量。
In this paper, each welding residual stress fields and the welding deformation simulation result of the rear fork structure were given and quantitatively analyzed.
本文给出了各自的焊接残余应力场和平叉结构的焊接变形的模拟结果，并对其进行了定量分析。
At the same time, analyze the welding deformation of straight-line segment model of side rail, and compare the results with test data, verify this method is efficient.
同时，针对汽车纵梁部分直线段模型进行焊接变形分析，并与试验数据进行了对比，验证了该方法的有效性。
Following a theoretical analysis of the welding process of metal structure, a computer program for the calculation of the welding deformation is described in this article.
在对金属结构的焊接过程进行理论分析之后，本文介绍了焊接变形计算的计算机程序。
Some methods used in the control of welding deformation, such as reverse deformation, system analysis, controlling process parameters and temperature field, are introduced.
同时介绍了控制焊接变形的几种方法，如反变形法、控制工艺参数、控制温度场以及系统综合分析等。
The super radial gate for the Hongjiang Hydropower Station has many welding joints so that it is big in welding deformation and difficult to control the welding deformation.
洪江电站超大型弧形闸门焊缝较多，焊接变形较大、焊接变形控制困难。闸门制作中，利用多种焊接变形控制技术，对闸门制造全过程焊接进行了跟踪和研究。
Million cubic meters of floating roof storage tank area, the design selection of the steel is thinner, easy to produce after welding deformation, flatness control difficult.
十万立方米储罐浮顶面积大，设计选用的钢板较薄，焊接后极易产生变形，平整度控制很难。
Based on emphasis and difficulties of structural welding, influencing factors and control measures for welding deformation are introduced according to construction experience.
针对钢结构工程焊接技术的重点和难点，根据多年的工程实践经验，本文主要阐述实用焊接变形的影响因素及控制措施和方法。
The welding deformation and residual stress during the procedure of the welding of the submarine's spherical stem bulkhead are a very important guideline on the submarine's safety.
潜艇球面艏端隔壁结构在工程焊接过程中产生的焊接变形及残余应力是关系到潜艇安全的重要指标。
The frame of heavy stay column sets for Dongjiang Power Station possesses a great rigidity with large dimension, so its requirements for welds quality and welding deformation are strict.
东江电站大型灯泡贯流式机组机座结构尺寸大、刚性大，对焊缝质量和焊接变形要求较高。
The predeformation process to decrease welding deformation is simulated by FEM and the method to determine predeformation value is given. The final deformation after welding is predicted.
利用有限元方法对预变形法减小焊接变形进行了模拟，给出了确定预变形大小的方法，并对最终的焊接变形进行预测。
The usual prediction methods of welding deformation include experimental method, analytical method, numerical method and equivalent load method, and the latter two methods are more commonly used.
焊接变形分析方法包括实验法、解析法、数值分析法、等效载荷法等，常用的是后两种方法。
The usual prediction methods of welding deformation include experimental method, analytical method, numerical method and equivalent load method, and the latter two methods are more commonly used.
焊接变形分析方法包括实验法、解析法、数值分析法、等效载荷法等，常用的是后两种方法。
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