Expulsion Reduction in Resistance Spot Welding by Controlling of welding Current Waveform

被引：22

作者：

Hwang, In Sung ^{[1
]}

Kang, Mun Jin ^{[1
]}

Kim, Dong Cheol ^{[1
]}

机构：

[1] Korea Inst Ind Technol, Adv Welding & Joining Dept, Inchon 406840, South Korea

来源：

11TH INTERNATIONAL CONFERENCE ON THE MECHANICAL BEHAVIOR OF MATERIALS (ICM11) | 2011年 / 10卷

关键词：

Advanced high-strength steel; Resistance spot welding; Weldability; Welding lobe; Shear tension strength; Nugget width; STEELS;

D O I：

10.1016/j.proeng.2011.04.461

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

There is a welding problem such as expulsion in resistance spot welding of high strength steel. This is due to overheating induced by increase of total heat input. Recently, many studies are carried out to solve the problems using electrode force control and current control. In this study, we tried to achieve expulsion reduction through controlling welding current. Steel sheet coated by Al-Si that has strength of 1500MPa was selected as a base material. The control results were compared with conventional welding method. Also, it is characterized how the variation of the heating and cooling by pulse current waveform control have an effect on expulsion. (C) 2011 Published by Elsevier Ltd. Selection and peer-review under responsibility of ICM11

引用

页数：7

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