A recent study on the circular cutting of soft steel with CO2 laser was made on two 600x400mm steel plates of thickness g = 10mm, where 225 references were obtained. The laser power input, lens focal length, low O2 aspiration gas pressure and cutting speeds were varied to achieve various measurements and research by optimizing the resulting cutting parameters: circularity, dimensional precision, roughness, hardness, etc. Thus, with the help of this paper I managed to correlate the characteristics of the laser radiation according to the physical properties of the steel 37 made on a Bystronic laser plant. In order to achieve the measurements, the properties and characteristics of the laser beam and control over its propagation must be known to the operator in order to increase the quality of the parts and the industrial productivity.
laser cutting, CO2 laser, laser piercing, laser drilling
 E.H. Amara , A. Bendib, Modelling of vapour flow in deep penetration laser welding ,J. Phys. D: Appl. Phys. 35 (2002).
 E.H. Amara, T. Aoudjit, K. Kheloufi, T. Tamsaout, S. Aggoune, A. Ahmanache, F. Hamadi, K. Bougherara, Simulation by temperature gradient adaptionof wavelength effect in metal laser cutting, Centre de Développement des Technologies AvancéesCDTA - Laser Material Processing Team, PO. BOX 17 Baba-Hassen, Algiers, 16303, Algeria, JOURNAL OF LASER APPLICATIONS, (2017)
 V. Bujor, R. Boboescu, Formulation of Modeling Problems in Laser Welding, Reliability and Durability - Fiability & Durability nr.2 / 2009 "Academica Brâncuşi" Publishing House, Târgu Jiu.
 Bocksrocker, O. , Berger, P., Regaard, B., Graf, T “Characterization of the melt flow direction and cut front geometry in oxygen cutting with a solid state laser”, JOURNAL OF LASER APPLICATIONS, Published: MAY 2017.
 M. Chalian, Doctoral thesis, "Studies on the interaction of laser radiation with metallic substance" Library of the Polytechnic University of Bucharest, 2003.
 S. Dinu, Doctoral Thesis, Researches on physical phenomena occurring at the interaction of thin titanium dioxide laser radiation deposited on glass, Library of Polytechnic University of Bucharest, 2006.
 O. Donţu, Laser Processing Technologies, Technical Publishing House, 1985.
 P. V, Glod, PhD thesis "Industrial optimization of laser cutting of steel sheets", Polytechnic University Library, Politehnica Publishing House, 2010
 Petru-Valentin Glod, Remus Boboescu, Methods of experimental research applied for laser cutting of steels, Timisoara, Eurostampa, 2014.
 C. Oros, Doctoral Thesis "Studies on Material Structure Changes in the Interaction of Laser Radiation with the Substance," Library of Polytechnic University of Bucharest, 2001.
 Parthiban, A., Sathish, S., Ravikumar, R., “Optimization of CO2 laser cutting parameters on Austenitic type Stainless steel sheet, INTERNATIONAL CONFERENCE ON EMERGING TRENDS IN ENGINEERING RESEARCH, Published: 2017.
 “The effect of laser type and power on the efficiency of industrial cutting of mild and stainless steels”, Journal of manufactuting Science and Engineering.
 Powell, J., Frostevarg, J., Alexander F. H., “Dynamic laser piercing of thick section metals”, OPTICS AND LASERS IN ENGINEERING, Published: JAN 2018.
 I. M. Popescu, Physics and Laser Engineering, Technical Publishing House, 2000.
 N. Puscaş, Lasers, Academica Publishing House, 2007.
 Sharma, V., Kumar, V., “Investigating the quality characteristics of Al5052/SiC metal matrix composites machined by CO2 laser curve cutting”,), PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART L-JOURNAL OF MATERIALS-DESIGN AND APPLICATIONS, Published: JAN 2018.
 Gh. Savii - Lasers, Facla Publishing House, 1981.
 Rajamani, D., Tamilarasan, A., “Multi-response optimization of Nd:YAG laser cutting parameters of Ti-6Al-4V superalloy sheet”, JOURNAL OF MECHANICAL SCIENCE AND TECHNOLOGY, Published: FEB 2017.
 L.V. Tarasov, Lasers, Reality and Hopes, Technical Publishing House, 1990.
Cite this paper
Constantin Cristinel Girdu. (2018) Mathematical modeling for soft laser beam processing. International Journal of Applied Physics, 3, 20-25
Copyright © 2018 Author(s) retain the copyright of this article.
This article is published under the terms of the Creative Commons Attribution License 4.0