Weld penetration sensing in pulsed gas tungsten arc welding based on arc voltage

被引：32

作者：

Zhang Shiqi ^{[1
]}

Hu Shengsun ^{[1
]}

Wang Zhijiang ^{[1
]}

机构：

[1] Tianjin Univ, Tianjin Key Lab Adv Joining Technol, Tianjin 300072, Peoples R China

来源：

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY | 2016年 / 229卷

关键词：

Arc voltage; Penetration sensing; Medium-thickness steel plate; Pulsed gas tungsten arc welding; POOL; SURFACE;

D O I：

10.1016/j.jmatprotec.2015.09.034

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

An alternative to the conventional weld penetration sensing methods in pulsed gas tungsten arc welding is proposed for implementation at manufacturing sites. The fluctuation amplitude of arc voltage in the peak duration (Delta U-k) reflects the weld penetration status in a single-weld spot; a fully penetrated weld spot is obtained in the step-by-step welding process when the abrupt change of Delta U-k (denoted as Delta U'(k)) is above the threshold (1.50V herein). A full penetration control system that employs Delta U'(k) as the feature signal for step-by-step pulsed gas tungsten arc welding can be easily installed at the manufacturing sites. (C) 2015 Elsevier B.V. All rights reserved.

引用

页码：520 / 527

页数：8

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