旁路耦合电弧高速焊接工艺

发布时间：2018-05-06 10:13

本文选题：旁路电弧 + 熔滴过渡　；参考：《焊接学报》2017年06期

【摘要】：为了实现传热、传质的解耦,提出了旁路耦合电弧焊接工艺(Arcing-wire PAW).介绍了旁路耦合电弧焊接工艺的原理和系统组成,利用数据采集系统和高速摄像机对电信号和熔滴过渡进行同步采集,结合电信号变化和熔滴过渡行为分析不同焊接参数对熔滴过渡的影响.结果表明,送丝速度和MIG电流的变化改变了焊丝熔化的平衡位置,使得熔滴的过渡状态和频率发生了变化,焊丝垂直高度的变化使得焊丝充分利用熔池的热量实现稳定快速过渡.由于传热和传质可以分开控制且电弧形态在焊接方向被拉长,保证了高速焊接时焊接过程的稳定性.
[Abstract]:In order to realize the decoupling of heat and mass transfer, an Arcing-wire PAW welding process is proposed. This paper introduces the principle and system composition of by-pass coupling arc welding technology. The data acquisition system and high-speed video camera are used to synchronously collect electric signals and droplet transfer. The influence of different welding parameters on droplet transfer is analyzed by combining the change of electric signal and the droplet transfer behavior. The results show that the change of wire feeding speed and MIG current change the equilibrium position of welding wire melting and make the transition state and frequency of droplet change. The change of wire vertical height makes the wire make full use of the heat of the weld pool to realize stable and fast transition. The heat and mass transfer can be controlled separately and the arc shape is elongated in the welding direction, which ensures the stability of the welding process during high speed welding.
【作者单位】：北京工业大学汽车结构部件先进制造技术教育部工程研究中心;首都航天机械公司;
【基金】：国家自然科学基金资助项目(51375021) 国家科技重大专项(2014zx04001-171)
【分类号】：TG444

【相似文献】