Real-time monitoring of fiber laser cutting of thick plates by means of photodiodes

摘要

Adaptive real-time monitoring and control is a natural solution for automated unmanned laser cutting that has been intensively studied for the last decades. However, sensor solutions for laser cutting are rarely used in practice. In this paper, a coaxial photodiode-based monitoring system has been developed and investigated for 4 kW fiber laser cutting of mild and stainless steel thick plates. Based on the obtained results, the feasibility of industrial application of the implemented setup is discussed.