Further improvement of quality and productivity are some the most relevant laser cutting process challenges. One way affecting performance is manipulating beam intensity distribution. Within this work, feasibility enhancing speed edge using dynamic shaping in 4 kW fiber 15 mm stainless steel investigated. Moreover, order to evaluate effect parameters on zone, a simplified thermal simulation mod...

Laser is one of the sources that induce a biological effect in higher plants. The positive effect of laser on some crops has been proved. This research was carried out to study the effect of laser radiation on the accumulation of proline in spring wheat (Triticum aestivum cv. Kavir) under different NaCl treatment levels. Semi-coherent red beam, infrared beam and one-second harmonics of Neodymiu...

Aim of this contribution is to present the optimization of the laser cutting process by artificial neural networks. NeuroSolution for Excel 1.02 was used in order to interpret complicated dependencies between technological characteristics of laser cutting and output parameters. Multilayer feed forward neural networks are utilized for modelling and prediction of input parameters of laser cutting...

A strategy is proposed for achieving a practically important mode of laser processing—a so-called “smooth” filamentation cutting (LFC) transparent materials by moving beam pulse-periodic pico- or subpicosecond laser. With such cutting, the surface sidewalls cuts have significantly improved smoothness, and, as result, laser-cut plates increased resistance to damage and cracking due mechanical im...

We transform a TEM00 laser mode into multiple counterpropagating optical traps to achieve four-dimensional simultaneous manipulation of multiple particles. Efficient synthesis and dynamic control of the counterpropagating-beam traps is carried out via the generalized phase contrast method, and a spatial polarization-encoding scheme. Our experiments genuinely demonstrate real-time, interactive p...

An optoelectronic method for in situ monitoring of the flank wear of cutting tools is presented. The method is based on real time vision technology in which the tool is illuminated by the beam of a laser and the wear zone is visualized using a Vidicon camera. The image is converted into digital pixel data and processed, to detect the wear land width. Detailed aspects of the image processing pro...