Arc stability and its impact on weld properties and microstructure in anti-phase synchronised synergic-pulsed twin-wire gas metal arc welding

被引：52

作者：

Moinuddin, Syed Quadir ^{[1
]}

Sharma, Abhay ^{[1
]}

机构：

[1] Indian Inst Technol Hyderabad, Dept Mech & Aerosp Engn, Hyderabad 502205, Telangana, India

来源：

MATERIALS & DESIGN | 2015年 / 67卷

关键词：

BEHAVIOR;

D O I：

10.1016/j.matdes.2014.11.052

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The paper conveys new observations on arc stability in anti-phase synchronised synergic-pulsed twin-wire gas metal arc welding. Unlike the conventional understanding that arcs mutually affect each other, leading to arc instability, uneven weld bead, and excess spatter loss, etc., the present investigation suggests that dissimilar currents at lead and trail wires induce stability in the welding arcs, resulting in a considerable influence on weld microstructures, hardness, heat affected zone, and weld penetration-width ratio. The separation of arcs in time by anti-synchronisation and a synergic pulse can be better utilised to control arc instability when the current at the lead wire is more than that of the trail wire. (C) 2014 Elsevier Ltd. All rights reserved.

引用

页码：293 / 302

页数：10

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