同时对激光热丝焊、多道焊和异种金属焊技术进行了评述。
At the same time, the technology of laser welding with hot wire addition, multi pass welding technology and dissimilar metal joints welding technology are also introduced.
提出了一种可用于机器人焊接大型V形焊接接头多道焊填充策略。
In this paper, a new filling strategy for multi pass welding, which can be used in robotic welding, is put forward.
应用abaqus软件，对多道焊T形接头的温度场和应力场进行了数值模拟。
Temperature and stress distribution of multi-pass welded T-joint was simulated using ABAQUS codes. 3-d solid elements were used to mesh the model.
针对埋弧焊多道焊的焊缝跟踪以及焊枪高度跟踪问题，设计了一种二维跟踪系统。
Regarding to submerged arc weld multi-pass weld track and height of weld gun, two-dimension track system is designed.
比较了半周模型和全周模型，固定热源和移动热源，单道焊和多道焊下的分析结果。
Half-circle model and full-circle model, fixed heat source and moving heat source, single pass and multi-pass welding are used for comparison.
计算中考虑材料物理性能随温度的变化，并运用单元激活技术模拟多道焊焊接过程。
The change of material property depending on temperature was considered in computation. The element birth technique was adopted to simulate multi-pass weld.
另外为消除二次淬火对ASTM 4130钢组织和性能的影响，应采用多层多道焊，并添加回火焊道。
In addition, to weaken the effect of double quenching on the microstructure and properties of ASTM4130 steel, multi-pass welding and temper bead should be adopted.
另外为消除二次淬火对ASTM 4130钢组织和性能的影响，应采用多层多道焊，并添加回火焊道。
In addition, to weaken the effect of double quenching on the microstructure and properties of ASTM4130 steel, multi-pass welding and temper bead should be adopted.
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