A novel monitoring method of nanosecond laser scribing float glass with acoustic emission

2022 ◽  
Author(s):  
Weinan Liu ◽  
Guojun Zhang ◽  
Yu Huang ◽  
Wenyuan Li ◽  
Youmin Rong ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Float Glass ◽  
Nanosecond Laser ◽  
Monitoring Method ◽  
Laser Scribing

532 nm Nanosecond laser cutting solar float glass: Surface quality evaluation with different laser spot positions in field lens

Optik ◽  
2020 ◽  
Vol 223 ◽  
pp. 165620
Author(s):  
Haoyu Dong ◽  
Yu Huang ◽  
Youmin Rong ◽  
Chunmeng Chen ◽  
Wenyuan Li ◽  
...  
Keyword(s):  
Surface Quality ◽  
Glass Surface ◽  
Laser Cutting ◽  
Quality Evaluation ◽  
Float Glass ◽  
Laser Spot ◽  
Nanosecond Laser ◽  
532 Nm

A new monitoring method for metal rust removal states in pulsed laser derusting via acoustic emission techniques

2020 ◽  
Vol 275 ◽  
pp. 116321 ◽  
Author(s):  
Xiaozhu Xie ◽  
Qingpeng Huang ◽  
Jiangyou Long ◽  
Qinglei Ren ◽  
Wei Hu ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Pulsed Laser ◽  
Monitoring Method

Study of Acoustic Emission of Wheel Passivation for Cermet Based on Super-Speed Grinding

2011 ◽  
Vol 328-330 ◽  
pp. 796-800
Author(s):  
Li Guo ◽  
Hou Bin Du ◽  
Xiao Min Sheng ◽  
Ke Li Peng ◽  
Tan Jin ◽  
...  
Keyword(s):  
Acoustic Emission ◽  
Wavelet Analysis ◽  
Monitoring Method ◽  
Wavelet Energy ◽  
Grinding Conditions ◽  
Nonlinear Relation ◽  
Relation Model ◽  
On Line ◽  
Viable Method ◽  
Table Speed

In this paper, there are two kinds of material (cermet and cemented carbide) to be used. Different grinding conditions were performed for evaluation of RMS of acoustic emission(AE) signals and understanding the effect of each grinding parameter on AE RMS during grinding process. A kind of on-line monitoring method based on wavelet analysis and acoustic emission was raised and the nonlinear relation model between AE RMS,wavelet energy coefficients and wheel passivation state was built. During the process,the wavelet analysis method was used to decompose the original signals for extracting wavelet energy coefficients. The results of experiments indicates that AE RMS increases with increasing table speed;The corresponding relation between AE RMS and table speed is good and could take the table speed as the main parameter for studying wheel passivation state. As a result, the nonlinear relation model can monitor the wheel passivation degree on-line accurately through training. This provides a kind of viable method which has very high practical value for confirming the wheel dressing cycle.

Advances in Wear Measurement by Acoustic Emission Analysis Compared to Radionuclide Technique

2011 ◽  
Author(s):  
A. Albers ◽  
S. G. Kelemen
Keyword(s):  
Particle Size ◽  
Acoustic Emission ◽  
Noise Analysis ◽  
Wear Volume ◽  
Friction Behavior ◽  
Emission Analysis ◽  
Monitoring Method ◽  
Solid Friction ◽  
First Time

Online analysis of a tribological contact without changing the conditions of the system is a challenging exercise until today. Yet, it is not possible to detect wear and the particle size ith one method. Numerous works study different phenomena of the behavior of ultrasonic structure-borne noise in dry friction contacts. However all these experiments are limited to basic pin-disc experiments without any concrete reference to an application. A new application for detecting real contact-geometry, wear and particle size with one in-situ condition monitoring method on a test rigs is presented in this paper. The method of structure-born noise analysis has proven to be suitable for detecting the occurrence of solid friction [1]–[4]. By using a broadband piezoelectric acoustic emission sensor to detect ultrasonic structure-born noise, caused by metal-to-metal contact it is now possible to study different types of phenomena during their time of appearance. The Radionuclide Technology (RNT) was used the first time at dry running friction systems. With the RNT it is possible to correlate ultrasonic structure-borne noise with wear volume in dry running friction systems. The application is used for deeper understanding of the friction behavior and wear phenomena in dry running contacts.

Monitoring method for femtosecond laser modification of silicon carbide via acoustic emission techniques

2021 ◽  
Vol 290 ◽  
pp. 116990
Author(s):  
Xiaozhu Xie ◽  
Yuliang Zhang ◽  
Qingpeng Huang ◽  
Yajun Huang ◽  
Wei Zhang ◽  
...  
Keyword(s):  
Silicon Carbide ◽  
Acoustic Emission ◽  
Femtosecond Laser ◽  
Monitoring Method ◽  
Laser Modification

Damage Assessment of Specimens Made of Steel 09G2S Exposed to Low-Cycle Fatigue with the Help of Acoustic Emission Monitoring Method

2020 ◽  
Vol 992 ◽  
pp. 964-970 ◽  
Author(s):  
A.S. Valiev ◽  
G. Khalikova ◽  
I.R. Kuzeev
Keyword(s):  
Acoustic Emission ◽  
Damage Accumulation ◽  
Low Cycle Fatigue ◽  
Cyclic Fatigue ◽  
Test Methods ◽  
Raw Material ◽  
Monitoring Method ◽  
Damage Degree ◽  
Daily Change ◽  
Cyclic Impact

Cyclic impact of external parameters on the structure, such as the daily change of temperature, change of operating parameters (pressure, temperature, volumes of loaded raw material) may lead to the brittle fracture of the equipment material with fast propagation of the main crack. In view of this, there is a need to use the nondestructive test methods which allow determining the critical level of damage accumulation. The article considers the pattern of change in properties as a result of low-cyclic loading by studying the parameters of acoustic signal. Changes in acoustic emission (AE) parameters were measured in the process of uniaxial tension of specimens with different degrees of accumulated damage. Upon processing of these AE parameters, stages of damage accumulation in cyclic fatigue were determined. Thus, is was determined that acoustic-emission diagnostics is sensitive to the said changes and may be used for assessment of the damage degree of 09G2S steel specimens.

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