Abstract
Slate is a natural stone which has the characteristic that shows a well developed defoliation plane, allowing to easily split it in plates parallel to that plane which are particularly used as tiles for roof building.At present, the manufacturing of slate is mostly manual, being noisy, powdery and unsafe for the worker. Thus, there is a need to introduce new processing methods in order to improve both the working conditions and the quality of the products made of slate.Following the previous work focused on the drilling and cutting of slate tiles using a Nd: YAG laser, we present in this paper the results of the work carried out to explore the possibilities to cut slate plates by using a CO2 laser.A 1.5 kW CO2 laser was used to perform different experiments in which, the influence of some processing parameters (average power, assistant gas pressure) on the geometry and quality of the cut was studied. The results obtained show that the CO2 laser is a feasible tool for a successful cutting of slate.Slate is a natural stone which has the characteristic that shows a well developed defoliation plane, allowing to easily split it in plates parallel to that plane which are particularly used as tiles for roof building.At present, the manufacturing of slate is mostly manual, being noisy, powdery and unsafe for the worker. Thus, there is a need to introduce new processing methods in order to improve both the working conditions and the quality of the products made of slate.Following the previous work focused on the drilling and cutting of slate tiles using a Nd: YAG laser, we present in this paper the results of the work carried out to explore the possibilities to cut slate plates by using a CO2 laser.A 1.5 kW CO2 laser was used to perform different experiments in which, the influence of some processing parameters (average power, assistant gas pressure) on the geometry and quality of the cut was studied. The results obtained show that the CO2 laser is a feasible tool for a successful cutting of slate.
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