The increasing use of electrical devices in various areas results in higher demand of coil wires, which are coated with an insulating layer. Often insulation must be removed before welding. Laser systems are increasingly being used for different industrial purposes. In this work we designed a physical model of copper wire insulation removal process via semi-infinite body and gradually adjusted it based on the results of the experiments, where we illuminated the front surface of copper wire. With the experiments carried out, we found the inverse proportionality of the parameters of laser power and the duration of laser pulse in combination with the removed length of the wire insulation coating while simultaneously gaining control of the process itself. The accuracy of the physical model was validated by calculating multiple standard deviations, which were evaluated at 14 ms when determining the duration of the laser pulse for initiation of insulation layer melting, standard deviation for calculated coefficient of absorbtivity was 7.7 % and the accuracy of insulation removal length was 0,40 mm.
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