INFLUENCE OF THE OVERLAP COEFFICIENT ON THE CONTRAST IN LASER MARKING OF C110W STEEL

Nikolay Angelov, Lybomir Lazov, Edmunds Teirumnieks

Abstract


The laser marking process by melting samples of C110W carbon tool steel was studied. The experiments were performed with a fiber laser and a CuBr laser. A field of squares is marked in a raster method for different values of the overlap coefficient and power density. The contrast of the marking is determined on each marked square. From the obtained experimental data, graphs of the dependence of the contrast on the overlap coefficient for three power densities were drawn. The obtained results for the two lasers are compared and the influence of the wavelength is indirectly analysed. The working intervals of the overlap coefficient for the studied power densities for the two lasers at which the optimal contrast in the processing zone is obtained are determined.


Keywords


laser marking, fiber laser, CuBr laser, C110W steel, overlap coefficient, power density, contrast

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References


Grigoryanc, A., Shiganov, I. & Misyurov, A., Technological processes of laser pro-cessing, Publ. MGTU N. Baumana, Moskow, 2006

Lazov L. K., N. A. Petrov, Investigation of the Impact of the Number of Repetitions and Defocus on the Contrast of Laser Marking for Products Made of Tool Steel, Metalofizika I noveishie Tekhnologii, t.34, № 7, pp. 1003-1011, 2012, ISBN 1024-1809

Sobotova, L., P. Demec, Laser Marking of Metal Materials, Modern Machinery Science Jounal, 808-812, 2015.

E. Nikolidakis, I. Choreftakis, A. Antoniadis, Experimental Investigation of Stainless Steel SAE304 Laser Engraving Cutting Conditions, Machines, 6, 40; 1-8, 2018, DOI:10.3390/machines6030040

Lazov L., N. Angelov, Basic factors determining quality of markings on metals and alloys. International Scientific Conference AMTECH - 2007, Gabrovo, Vol. I, 102-107, 2007

Lazov L., A. Atanasov, N. Angelov, Investigation of the role of certain factors affecting the contrast in laser marking, Contemporary Materials, Vol. II−1, 13-17, 2011.

Angelov, N., Optimization of the process of laser marking of samples of tool steel, dissertation for the degree of DOCTOR, TU - Gabrovo, 2011

L. Chunling, L. Changhou, Laser-Induced Color Marking of Titanium Alloy, TELKOMNIKA, Vol.14, No.4, 1313-1320, 2016, ISSN: 1693-6930, DOI: 10.12928/TELKOMNIKA.v14i4.4177

L. Jianmei, L. Changhou, W. Aiqun, W. Yusong, M. Zhuo, F. Xinxin, T. Liang, Experimental investigation and mathematical modeling of laser marking two-dimensional barcodes on surfaces of aluminum alloy, Journal of Manufacturing Processes 21, 141–152, 2016, DOI: https://doi.org/10.1016/j.jmapro.2015.12.007

G. Schnell, U. Duenow, H. Seitz, Effect of Laser Pulse Overlap and Scanning Line Overlap on Femtosecond Laser-Structured Ti6Al4V Surfaces, Materials 2020, 13, 969; 1-15, DOI:10.3390/ma13040969

Dolchinkov, N., Practical Research of Marking and Cutting of Textiles with Increased Resistance, Using CO2 Laser, Journal of Physics: Conference Series , Volume 1681, 2020 012014 IOP Publishing DOI:10.1088/1742-6596/1681/1/012014

Kolev, I., T. Karadzhov, Classification, parameters, characteristics and application of matrix semiconductor photoconverters, 27th International Spring Seminar on Electronics Technology, vol. 3, 444-447, 2004, DOI: 10.1109/ISSE.2004.1490852

Pencheva T., D. Pulov, B. Gyoch, M. Nenkov, Design of CCD Optical System for Thermal IR Spectral Region. In pr. 29-th International Spring Seminar fn Electronics Technology, St. Marienthal, Germany, Verlag Dr. Markus A. Detert, 413-418, 2006, ISBN 3-934142-23-0, DOI: 10.1109/ISSE.2006.365380

Dolchinkov, N., Investigation of the State of the Radiation Control Systems and the Actions of the Competent Authorities and the Population in the Event of a Change in the Radiation Background in Bulgaria, International Conference KNOWLEDGE-BASED ORGANIZATION, Vol. XXIV No 3, 38-44, 2018, DOI: https://doi.org/10.1515/kbo-2018-0134

Lazov L, N. Angelov, Physical model about laser impact on metals and alloys, Contemporary Materials, Vol. I−2, 124-128, 2010.

Valiulin A., S. Gorniy,Y. Grechko, M. Patrov, K. Yudin, V. Yurevich, Laser marking of metals, Scientific and technical journal "Photonics",, №3, 16-22, 2007.

Cvetanov, G., T. Karadzhov, R. Miteva, Determination of the elastic displacements in plain strained condition of involute cylindrical gears with asymmetric profile. AIP Conference Proceedings, Volume 2333, 2021, DOI: 10.1063/5.0042511




DOI: https://doi.org/10.17770/etr2021vol3.6599

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