Abstract
Abstract—This work studies the influence of mechanical properties on the durability of cutting tools made of high-speed steel R6M5 under production conditions and their relationship with indicators of changes in the “defectiveness” of the structure (density of dislocations, size of mosaic blocks, crystal lattice microdistortion), which occurred as a result of a single exposure to a high-energy laser pulse. It is shown that when assigning optimal modes of volume pulsed laser hardening (VPLH) (energy and duration of a laser pulse, laser beam diameter, distance from the irradiation point to the main cutting edge), the results of X-ray analysis can be used, which can significantly improve the technical and economic indicators of the hardening and operation of cutting tools made of high-speed steel Р6М5 in terms of productivity, prime cost and instrumental costs of laboratory research.
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