• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2016, Vol. 52 ›› Issue (2): 13-18.doi: 10.3901/JME.2016.02.013

• 高速高效熔化焊接工艺专栏 • 上一篇    下一篇

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双丝旁路耦合电弧GMAW高效焊接工艺

樊丁,  盛文文,  黄健康,  石玗,  朱明   

  1. 兰州理工大学省部共建有色金属先进加工与再利用国家重点实验室  兰州  730050
  • 收稿日期:2015-04-29 修回日期:2015-10-08 出版日期:2016-01-15 发布日期:2016-01-15
  • 通讯作者: 樊丁,男,1961年出生,教授,博士研究生导师。主要从事焊接物理、焊接方法与智能控制及激光加工等方面的研究。 E-mail:fand@lut.cn
  • 基金资助:
    国家自然科学基金资助项目(51465031)

High Effective Double-electrode GMAW Procedure#br#

FAN Ding,  SHENG Wenwen,  HUANG Jiankang,  SHI Yu,  ZHU Ming   

  1. State Key Laboratory of Advanced Processing and Recycling of Non-ferrous Metals, Lanzhou University of Technology, Lanzhou 730050
  • Received:2015-04-29 Revised:2015-10-08 Online:2016-01-15 Published:2016-01-15

摘要: 在介绍了双丝旁路耦合电弧熔化极气体保护焊(双丝旁路耦合电弧(Double-electrode gas metal arc welding, DE-GMAW))高效焊接工艺原理的基础之上,采用双闭环反馈解耦智能控制系统,进行双丝旁路耦合电弧GMAW高速焊接工艺试验,测量双丝旁路耦合电弧GMAW母材热输入,分析双丝旁路耦合电弧GMAW高效焊接工艺机理,并对双丝旁路耦合电弧GMAW高效焊接工艺方法进行改进,进一步研究混合气体保护下的双丝旁路耦合电弧GMAW及其熔滴过渡行为,且开发出单电源双丝旁路耦合电弧GMAW。研究表明:采用双闭环反馈解耦智能控制系统使双丝旁路耦合电弧GMAW焊接过程稳定性更好、精确度更高且响应速度更快;旁路分流是实现高效焊接的同时降低母材热输入的关键;采用混合气体保护下的双丝旁路耦合电弧GMAW能进一步提高焊接过程稳定性,单电源双丝旁路耦合电弧GMAW能形成良好的焊缝成形,且设备成本低。

关键词: 工艺机理, 混合气体, 热输入, 双丝旁路耦合电弧熔化极气体保护焊

Abstract: On the basis of introducing the high effective double-electrode gas metal arc welding(DE-GMAW) procedure, used decoupling control system for the high-speed DE-GMAW test, measured the base metal’s heat input of DE-GMAW, analyzed the technology and mechanism of DE-GMAW, and improved the DE-GMAW technology, further studied the mixed gas DE-GMAW and dripping transition behavior, and developed single power supply DE-GMAW. The results show that, using decoupling control system makes DE-GMAW welding process better stability, higher accuracy and faster response speed; bypass shunt is the key to realize the high efficiency welding and reduce the base metal’s heat input; Using mixed gas can improve the stability of DE-GMAW, single power supply DE-GMAW formatted good weld and reduced the equipment cost.

Key words: double-electrode gas metal arc welding(DE-GMAW), heat input, mixed gas, technology and mechanism

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