Optimization of magnetic arc oscillation system by using double magnetic pole to TIG narrow gap welding

被引：41

作者：

Sun, Qingjie ^{[1
,2
]}

Wang, Jianfeng ^{[1
,2
]}

Cai, Chunwei ^{[3
]}

Li, Qian ^{[1
]}

Feng, Jicai ^{[1
,2
]}

机构：

[1] Harbin Inst Technol, State Key Lab Adv Welding & Joining, Harbin 150001, Peoples R China

[2] Harbin Inst Technol Weihai, Shandong Prov Key Lab Special Welding Technol, Weihai 264209, Peoples R China

[3] Harbin Inst Technol Weihai, Sch Informat & Elect Engn, Weihai 264209, Peoples R China

来源：

INTERNATIONAL JOURNAL OF ADVANCED MANUFACTURING TECHNOLOGY | 2016年 / 86卷 / 1-4期

基金：

中国国家自然科学基金;

关键词：

Magnetic arc; Formation characteristics; Narrow gap welding; Arc voltage; Current division ratio; FIELD; STEEL; ALLOY; MICROSTRUCTURE;

D O I：

10.1007/s00170-015-8214-8

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

A magnetic arc oscillation system for tungsten inert gas (TIG) narrow gap welding is developed to prevent insufficient sidewall fusion and improve efficiency and quality for thick component welding. The characteristic of the system is that a double magnetic pole is induced by exciting current flowing through the field coil to generate the magnetic field within the welding area. This optimization of double magnetic pole not only enhances magnetic flux density compared with conventional single magnetic pole but also provides reliable melting of the sidewall. In this article, a new experimental method for the determination of the resulting heat input into the workpiece is proposed. Measurements of arc voltage and welding current flowing through the sidewalls are used to validate the redistribution of the arc heat. Furthermore, the difference of linear heat input of the sidewalls caused by current division ratio difference and arc voltage difference was the main reason why the formation characteristics occurred.

引用

页码：761 / 767

页数：7

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