Abstract
Progress in laser material processing may require real-time monitoring and process control for consistent quality and productivity. We report a method of in-situ monitoring of laser metal cutting and drilling using cladding power monitoring of an optical fibre beam delivery system-a technique which detects the light reflected or scattered from the workpiece. The light signal carries information about the quality of the process. Experiments involving drilling and cutting of two samples, a thin aluminum foil and a 2-mm thick stainless steel plate, confirmed the effectiveness of this method. © 1993.
| Original language | English |
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| Pages (from-to) | 371-376 |
| Number of pages | 6 |
| Journal | Optics and Lasers in Engineering |
| Volume | 18 |
| Issue number | 5 |
| Publication status | Published - 1993 |