Image analysis of electrode degradation in resistance spot welding of aluminium

被引：56

作者：

Peng, S

Fukumoto, S

Brown, L

Zhou, N

机构：

[1] Univ Waterloo, Dept Mech Engn, Waterloo, ON N2L 3G1, Canada

[2] Univ Western Ontario, Dept Elect & Comp Engn, London, ON N6A 5B9, Canada

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2004年 / 9卷 / 04期

关键词：

resistance spot welding; aluminium; electrode degradation; image analysis;

D O I：

10.1179/136217104225012256

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A study was carried out of the characteristics of electrode degradation in resistance spot welding of aluminium, and its influence on weld quality. Based on analysis of electrode life test results, an imaging approach was developed to determine quantitatively the status of electrode degradation, in which three parameters were defined to represent the tip surface characteristics, namely, relative radius, edge concentration, and eccentricity. This image analysis revealed a clear relationship between these defined electrode surface features and the weld quality, based on which a reasonable understanding was achieved of the causes of weld quality deterioration in electrode life tests.

引用

页码：331 / 336

页数：6