Estimating the strength of resistance spot welds based on sonic emission

被引：42

作者：

Podrzaj, P ^{[1
]}

Polajnar, I ^{[1
]}

Diaci, J ^{[1
]}

Kariz, Z ^{[1
]}

机构：

[1] Univ Ljubljana, Fac Mech Engn, Ljubljana 1000, Slovenia

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 2005年 / 10卷 / 04期

关键词：

acoustic emission; expulsion; resistance spot welding; weld strength;

D O I：

10.1179/174329305X44107

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Audible sound signals detected during the resistance spot welding (RSW) of zinc coated steels were investigated in order to assess their suitability for estimating the strength of the weld. A new sonic emission indicator was introduced and compared to a commonly used emission count indicator. A new method of spot weld strength estimation based on the two indicators is presented. The advantage of the method is that it makes it possible to establish the stage when the electrode is worn out. The method enables the development of improved RSW process control algorithms.

引用

页码：399 / 405

页数：7

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