1. L. Schaeffer, V. Martins, L. Folle, A. S. Marques, P. R. Böesch, C. Ambrosi, CAD / CAE / CAM programs to reduce losses in sheet, 1st International Conference on Sheet Forming, Brazil October 5-7, 2011. [Online]. http://www.ufrgs.br/ldtm/publicacoes/2012/programas%20cad.pdf. Retrieved on16th of December 2017.
2. Laser beam machining (LBM), state of the art and new opportunities;Meijer;Journal of Materials Processing Technology,2004
3. J. Almeida, Conversion of a manual welding process in automatic welding, Master’s Thesis, Department of Mechanical Engineering of University of Oporto, Oporto, Portugal, 2018.
4. Parametric study to improve laser hole drilling process;Yilbas;Journal of Materials Processing Technology,1997
5. Laser cutting of steel sheets: Influence of workpiece thickness and beam waist position on kerf size and stria formation;Karatas;Journal of Materials Processing Technology,2006