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黄尊月, 罗震, 敖三三, 董建涛. 焊接顺序对某飞行器叉形结构焊接变形的影响[J]. 焊接学报, 2016, 37(8): 31-34,44.
引用本文: 黄尊月, 罗震, 敖三三, 董建涛. 焊接顺序对某飞行器叉形结构焊接变形的影响[J]. 焊接学报, 2016, 37(8): 31-34,44.
HUANG Zunyue, LUO Zhen, AO Sansan, DONG Jiantao. Effect of welding sequence on welding deformation of fork structure[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(8): 31-34,44.
Citation: HUANG Zunyue, LUO Zhen, AO Sansan, DONG Jiantao. Effect of welding sequence on welding deformation of fork structure[J]. TRANSACTIONS OF THE CHINA WELDING INSTITUTION, 2016, 37(8): 31-34,44.

焊接顺序对某飞行器叉形结构焊接变形的影响

Effect of welding sequence on welding deformation of fork structure

  • 摘要: 焊接变形影响了结构的承载能力和精密性,尤其对飞行器等精密结构将造成非常严重的后果.为了对某钛合金飞行器叉形结构的焊接变形进行精确测量从而达到控制焊接变形的目的,制作了简化的1:3钛合金模型,根据不同测量方法的特点,对钛合金模型采用数值仿真计算对整体变形进行了模拟,采用数字图像相关技术对远焊缝区域进行检测,并采用三维扫描对工作臂变形角度测量等三种方法,对焊接变形进行测量分析,较于传统测量,采用模拟和试验测试相结合的方法能够紧密联系工程实际,更加全面准确,量化了焊接顺序对焊接变形的影响,找到最佳焊接顺序方案.

     

    Abstract: Welding deformation has negative impact on the bearing capacity and precision of structures, especially for fork structure and other sophisticated structure, which will result in very serious consequences. In order to measure the welding deformation of fork structure precisely and to control it, a simplified model of a 1:3 titanium fork was produced. numerical simulation, digital image correlation techniques and three-dimensional scanning were used to measure the deformation in real-time and after welding. The simulation and experimental testing were combined closely, the actual engineering was taken into account, and the impact of welding sequence on welding distortion was quantified. At last the best welding sequence was found.

     

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