Grinding process control using the magnetic Barkhausen noise method

被引：0

作者：

Shaw, BA ^{[1
]}

Evans, JT ^{[1
]}

Wojtas, AS ^{[1
]}

Suominen, L ^{[1
]}

机构：

[1] Univ Newcastle, Dept Mech Mat & Mfg Engn, Newcastle, NSW 2308, Australia

来源：

ELECTROMAGNETIC NONDESTRUCTIVE EVALUATION (II) | 1998年 / 14卷

关键词：

D O I：

暂无

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Bearings, gears, shafts and many other surface hardened components in modern automotive and aerospace industries form a challenge to design and production engineers. They require special attention in choosing the correct parameters for heat treatment as well as for subsequent machining processes. The latter, if carried out inaccurately, may reduce the surface hardness and diminish the favourable compressive surface and subsurface stresses obtained during surface hardening. Accurate production control of machining processes such as grinding or hard turning is therefore essential to guarantee product quality. This paper discusses the industrial application of an inspection method based on the analysis of magnetic Barkhausen noise (BNA). This method has been shown to be more sensitive than the conventional acid etch inspection method and also has advantages over the alternative method involving eddy current detection. Examples are given to illustrate the sensitivity of the Barkhausen noise method to small changes in the level of surface residual stress and hardness which allows the detection of grinding damage at its onset.

引用

页码：82 / 91

页数：10