机器人自动脉冲TIG焊J形坡口焊缝填充策略

发布时间：2018-06-03 19:41

  本文选题：J形坡口 + 自动脉冲TIG焊　； 参考：《焊接学报》2017年01期

【摘要】：核电压力容器封头由半球形封头和多个圆管相贯构成,连接的焊缝为J形坡口,轨迹是球管相贯的空间曲线,位于封头内部.由于该焊缝的特殊性,目前普遍采用手工焊接,质量与效率不佳.文中针对核电压力容器封头J形坡口的机器人自动焊接技术提出了一种多层多道焊填充策略.通过焊接结构分析,确定了J形坡口的焊接工艺分区,提出了设定焊接层数、道数的焊接轨迹规划方法,进而提出了焊接工艺参数的设定规则并据此对焊缝形状进行控制.结果表明,应用文中提出的焊缝填充策略及焊缝形状控制方法可获得良好的焊缝成形.
[Abstract]:The head of nuclear pressure vessel is composed of hemispherical head and multiple round tubes. The weld seam is a J-shaped groove, and the track is the space curve of the spherical tube intersecting, which is located inside the head. Due to the particularity of the weld, manual welding is widely used at present, with poor quality and efficiency. In this paper, a multi-layer and multi-pass filling strategy is proposed for the robotic automatic welding of the J-shaped groove of the head of nuclear power pressure vessel. Through the analysis of welding structure, the welding process zoning of J groove is determined, and the method of welding trajectory planning is put forward, which sets the number of layers and passes, and then the rules of setting welding parameters are put forward and the shape of weld is controlled accordingly. The results show that good weld forming can be obtained by the proposed filling strategy and shape control method.
【作者单位】： 天津职业技术师范大学天津市高速切削与精密加工重点实验室;天津大学材料科学与工程学院;中国第一重型机械集团核电石化事业部;
【基金】：国家自然科学基金资助项目(51475325) 天津市自然科学基金资助项目(14JCYBJC19100) 天津市高等学校创新团队培养计划资助项目(TD12-5043) 天津市高校“学科领军人才培养计划”资助项目(RC14-02)
【分类号】：TG409
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本文编号：1973949