Penetration increase of AISI 304 using ultrasonic assisted tungsten inert gas welding

被引：104
作者：
Sun, Q. J. [1 ]
Lin, S. B. [1 ]
Yang, C. L. [1 ]
Zhao, G. Q. [1 ]
机构：
[1] Harbin Inst Technol, State Key Lab Adv Welding Prod Technol, Harbin 150001, Peoples R China
来源：
SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2009年 / 14卷 / 08期
基金：
中国国家自然科学基金;
关键词：
Welding; AISI; 304; Increased penetration; U-TIG; SHIELDING GAS; ACTIVATING FLUX; SHAPE; AR-O-2;
D O I：
10.1179/136217109X12505932584772
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Ultrasonic assisted tungsten inert gas (U-TIG) welding method was developed. Both U-TIG and conventional TIG welding of AISI 304 stainless steel with 5 mm thickness were experimentally studied in this paper. The results show that the penetration depth is increased up to 300% for weld made with U-TIG welding compared with conventional TIG welding. Ultrasonic energy enhances arc push force, causes a continual high frequency oscillation in the arc plasma and increases welding penetration. These effects are thought to be responsible for enhancing the welding efficiency and improving the appearance of stainless steel weld joints.
引用
收藏
页码：765 / 767
页数：3
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