Investigation of laser percussion hole drilling by use of speckle correlation

2005 ◽  
Vol 44 (30) ◽  
pp. 6338 ◽  
Author(s):  
O. Yalukova ◽  
N. Miroshnikova ◽  
P. Gren ◽  
I. Sárady ◽  
M. Sjödahl
Keyword(s):  
Hole Drilling ◽  
Speckle Correlation

Laser hole drilling process studied using laser speckle correlation

2006 ◽  
Author(s):  
Mikael Sjödahl ◽  
Per Gren ◽  
Istvan Sárady ◽  
Natalia Miroshnicova
Keyword(s):  
Laser Speckle ◽  
Hole Drilling ◽  
Drilling Process ◽  
Speckle Correlation

Percussion hole drilling of metals with a fourth-harmonic Nd:YAG laser studied by defocused laser speckle correlation

2005 ◽  
Vol 44 (17) ◽  
pp. 3403 ◽  
Author(s):  
Natalia Miroshnikova ◽  
Mikael Sjödahl ◽  
Per Gren ◽  
Istvan Sárady
Keyword(s):  
Nd:Yag Laser ◽  
Laser Speckle ◽  
Hole Drilling ◽  
Fourth Harmonic ◽  
Speckle Correlation

scholarly journals Residual stress analysis by digital spectral correlation

2021 ◽  
Author(s):  
Shiwei (Stanley) Ma
Keyword(s):  
Residual Stress ◽  
Classical Method ◽  
Correlation Method ◽  
Strain Gauges ◽  
Hole Drilling ◽  
Spectral Correlation ◽  
Digital Speckle Correlation Method ◽  
Speckle Correlation ◽  
Residual Stress Analysis ◽  
Digital Speckle Correlation

It is essential to determine residual stress, as it can have a significant influence on the fatigue lives of engineering components, and as it can be induced unintentionally as well as intentionally. A classical method of measuring residual stress is to use hole drilling in combination with strain gauges, which themselves have inherent disadvantages. The Digital Speckle Correlation method (DSC) is a computerized method which determines displacement and strains and consequently calculates stress. This project demonstrates the viability of hole drilling in combination with DSC.

scholarly journals Residual stress analysis by digital spectral correlation

2021 ◽  
Author(s):  
Shiwei (Stanley) Ma
Keyword(s):  
Residual Stress ◽  
Classical Method ◽  
Correlation Method ◽  
Strain Gauges ◽  
Hole Drilling ◽  
Spectral Correlation ◽  
Digital Speckle Correlation Method ◽  
Speckle Correlation ◽  
Residual Stress Analysis ◽  
Digital Speckle Correlation

It is essential to determine residual stress, as it can have a significant influence on the fatigue lives of engineering components, and as it can be induced unintentionally as well as intentionally. A classical method of measuring residual stress is to use hole drilling in combination with strain gauges, which themselves have inherent disadvantages. The Digital Speckle Correlation method (DSC) is a computerized method which determines displacement and strains and consequently calculates stress. This project demonstrates the viability of hole drilling in combination with DSC.

Hole drilling of Inconel 718 by high intensity pulsed UV laser

2001 ◽  
Author(s):  
Qihong Wu ◽  
Yurong Ma ◽  
Jiansheng Jie ◽  
Bin Miao ◽  
Rongehuan Fang ◽  
...  
Keyword(s):  
High Intensity ◽  
Inconel 718 ◽  
Hole Drilling ◽  
Uv Laser
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