Acoustic emission technique for online monitoring during cold forging of steel components: a promising approach for online crack detection in metal forming processes

2013 ◽  
Vol 7 (4) ◽  
pp. 423-432 ◽  
Author(s):  
B.-A. Behrens ◽  
A. Santangelo ◽  
C. Buse
Keyword(s):  
Acoustic Emission ◽  
Metal Forming ◽  
Crack Detection ◽  
Online Monitoring ◽  
Cold Forging ◽  
Acoustic Emission Technique

Design and Experiment of Electromagnetically Induced Acoustic Emission for Metal Crack Detection

2011 ◽  
Vol 291-294 ◽  
pp. 1278-1283
Author(s):  
Chuang Zhang ◽  
Su Zhen Liu ◽  
Qing Xin Yang ◽  
Liang Jin ◽  
Yu Huai Kan
Keyword(s):  
Acoustic Emission ◽  
Theoretical Analysis ◽  
Crack Detection ◽  
Pulse Current ◽  
Engineering Application ◽  
Stress Waves ◽  
Current Generator ◽  
Acoustic Emission Technique ◽  
Expected Effect ◽  
Large Pulse

A new electromagnetically induced acoustic emission technique (EMAE) is presented in this paper. It does nondestructive detection with the effect of dynamic electromagnetic loading to generate a stress field stimulating stress waves from the defects. Theoretical analysis and experiment of the EMAE is carried out. The large pulse current generator which is used in electromagnetically induced acoustic emission (EMAE) is designed based on the energy storage of the capacitor. Applying to the EMAE experiment, it can achieve the expected effect and locate the defect in the aluminium plate. This work laid a good foundation for the engineering application of EMAE.

Optimizing the Acoustic-Emission Technique for Examining the Strength of Welded Joints

Vestnik MEI ◽  
2017 ◽  
pp. 96-101
Author(s):  
Viktor V. Nosov ◽  
◽  
Alsu R. Yamilova ◽  
Nikolay A. Zelenskiy ◽  
Ilya V. Matviyan ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Welded Joints ◽  
Acoustic Emission Technique
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