上海交通大学学报

上海交通大学学报（自然版）

• 金属学与金属工艺 • 上一篇    下一篇

电弧超声激励共熔池双钨极氩弧焊接方法

王建军1，林涛2
  

  1. (1. 上海第二工业大学 电子与电气工程学院, 上海 201209；2. 上海交通大学 材料科学与工程学院, 上海 200240)
  • 收稿日期:2010-01-18 修回日期:1900-01-01 出版日期:2011-01-27 发布日期:2011-01-27

TwinArc TIG Welding with Ultrasonic Excitation

WANG Jianjun1,LIN Tao2
  

  1. (1. College of Electronic and Electrical Engineering, Shanghai Second Polytechnic University, Shanghai 201209, China; 2. School of Materials Science and Engineering, Shanghai Jiaotong University, Shanghai 200240, China)
  • Received:2010-01-18 Revised:1900-01-01 Online:2011-01-27 Published:2011-01-27

摘要： 提出了一种附加电弧超声激励共熔池的双钨极氩弧焊接新方法.使用附加超声电弧和主电弧完成焊接过程，附加超声电弧向焊接熔池注入超声波激励，主电弧作为主要的焊接热源，以实现改善焊缝金属性能及其焊接效率的功能.同时，以304钢为例，采用所提出的焊接方法进行试验.结果表明，所提出的焊接方法可以提高焊接过程的稳定性和焊接效率，有效细化焊缝金属组织并提高焊缝金属的拉伸性能.

关键词: 超声激励, 共熔池, 双钨极氩弧焊, 微观组织

Abstract: In order to enhance the mechanical properties of weld by using ultrasonic vibration, a new method of twinarc tungsten inertgas (TIG) welding was developed. The welding will be completed by jointly using combined ultrasonic arc and ordinary DC arc technology. The ultrasonic arc was used for injecting ultrasound excitation into the molten pool to improve weld quality, and the DC arc was used as main heat source to increase deposition efficiency. The feasibility experiment of the welding system was done by using the steel 304. Metallographic analysis shows that the method can thin the microstructure of weld. The tensile testing under nature temperature indicates that the method can improve tensile properties of the weld effectively.

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