Laser Hardening of Steels with a Rectangular Spot to Increase their Service Life
The rapid development of laser radiation sources and external optical systems requires improvement of methods for calculating the geometric parameters of hardened zones. The paper presents a brief overview of laser hardening steels laser spot rectangular shape. The results of the calculation of the depth and width of the hardened zones of the wheel steel rectangular spot, obtained by the regression equations of the first order, with equal linear radiation energy. It is shown that the wear resistance of the wheel steel increases by 2.14–3 times with a decrease in the wear of the rail steel during laser hardening in different modes.
Теги: laser hardening microhardness wear intensity интенсивность изнашивания лазерное упрочнение микротвердость
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