Breakthrough detection

Vanderwert, Terry
June 2006
Industrial Laser Solutions;Jun2006, Vol. 21 Issue 6, p12
The article describes the method of breakthrough detection for laser drilling. The method uses a video camera as a sensing device, which was mounted in such a way that it views the area being drilled through a path coaxial with the drilling laser beam. The method also used commercially available and proprietary electronic and mechanical components for conditioning radiated light from the laser drilling process and for processing the video signals. The method was shown to produce more consistent holes as measured by exit hole diameter and airflow.


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