Exploitable results
The work performed on this project includes:
cutting and drilling experiments of polyvinyl chloride (PVC) and PVC/fabric samples to establish the basic cutting rates using; krypton fluoride (KrF) and xenon chloride (XeCl) excimer laser;
cutting experiments of polyethylene/nonwoven samples in thin sheet form, in order to assess the excimer laser processing parameters; using argon fluoride (ArF) KrF and XeCl lasers;
assessment of the cutting and/or drilling quality and comparison with the other conventional techniques;
evaluation of appropriate prototype beam delivery system including optical fibres;
cutting experiments of agglomerate cork samples using krypton fluoride lasers;
investigation of the influence of gas flow, during excimer laser cutting, on the cutting quality;
cutting of complex shapes;
construction of excimer laser workstations for cutting and drilling of PVC;
construction of a prototype system for cutting polyethylene nonwoven sheet in rolls and continuous flow, using 4 excimer laser cutting heads.
Laser drilling was more successful than laser cutting and has considerable exploitation potential. The cutting technology also has potential since a considerable quality improvement over mechanical methods has been demonstrated.
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