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中文摘要：
旁路耦合电弧GMAW在实现提高焊丝熔敷率的同时减少了母材热输入，大幅降低电弧压力和熔滴射滴过渡的临界电流，实现高速焊接与异种金属间的焊接。近年来，兰州理工大学针对该方法展开了一系列研究，利用数字化模拟技术，采用多场全耦合方法，模拟了双旁路耦合电弧形态及热场、流场、电磁场的分布：模拟分析旁路耦合电弧脉冲GMAW在铝一钢异种金属焊接过程中，工件温度场的变化与接头界面上的原子扩散行为：建立了双丝旁路耦合电弧GMAW的数字化自动控制平台，并采用模糊控制算法实现了单闭环智能控制与双闭环解耦的智能控制。
英文摘要：
A novel and high effective double-electrode gas metal arc welding（ DE-GMAW ）method has been introduced. DE-GMAW method adds a second electrode as the bypass electrode to make the base metal current lower than the wire melting current. Recently, DE-GMAW has been widely researched and developed by Lanzhou university of technology in aspect of digitalization and intellectualization, based on the coupling arc phenomenon of DE-GMAW,a mathematical model of coupling arc has been established and lernperature field,flow field and electromagnetic field were also simulated; a atomic diffusion kinetics model of aluminundsteel interface were established and simulated in pulsed DE-GMAW process; a welding control system has been built and the wehling experiment of fuzzy control and decoupling control were carried out and analyzed.
同期刊论文项目
同项目期刊论文
Effects of Si and Mg elements on the microstructure of aluminum-steel joints produced by pulsed DE-G
Numerical simulation of temperature field of DE-GMAW and its comparison with experimental measuremen
Effect of joiningparameters on microstructure of dissimilar metal joints between aluminum andgalvani
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