Possibilities of using a 1070 nm laser in machining of some metallic materials

Laurenţiu Slӑtineanu; Oana Dodun; Margareta Coteaţӑ; Irina Beşliu Grigoraş; Lorelei Gherman

doi:10.1117/12.966464

1 November 2012 Possibilities of using a 1070 nm laser in machining of some metallic materials

Laurenţiu Slӑtineanu, Oana Dodun, Margareta Coteaţӑ, Irina Beşliu Grigoraş, Lorelei Gherman

Proceedings Volume 8411, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VI; 84111F (2012) https://doi.org/10.1117/12.966464
Event: Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies 2012, 2012, Constanta, Romania

Abstract

Possibility to machine the metallic materials by means of a laser beam depends on the capacity of these materials to absorb the respective laser radiation. In the case of a laser beam heaving a wave length λ=1070 nm, the experimental researches showed that among the common metallic materials, the steel absorbs the laser radiation, allowing the applying of some laser beam machining processes, while the copper, the aluminum and the bronze cannot be machined by means of the laser, for an output power of the laser equipment up to 300 W. Due to their high capacity to reflect the above mentioned laser radiation, such metallic materials (aluminum, copper, brass) cannot be significantly affected by the laser beam action and, therefore, they could not be machined by means of the laser radiation having a wave length of 1070 nm. Some considerations were elaborated by taking into account the phenomena developed at the contact zone between the laser beam and the surface layer of the workpiece. A part of the laser beam energy is absorbed, determining the material melting and vaporizing; another part of the laser beam is reflected by the workpiece surface in the case of copper, aluminum and brass. Some explanations concerning the effect of the laser beam exploited during the laser beam machining were developed, inclusively by means of the thermal properties of the workpiece materials.

Citation Download Citation

Laurenţiu Slӑtineanu, Oana Dodun, Margareta Coteaţӑ, Irina Beşliu Grigoraş, and Lorelei Gherman "Possibilities of using a 1070 nm laser in machining of some metallic materials", Proc. SPIE 8411, Advanced Topics in Optoelectronics, Microelectronics, and Nanotechnologies VI, 84111F (1 November 2012); https://doi.org/10.1117/12.966464

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