Abstract
Laser and plasma hardening practically do not damage the surface, so the parts after their execution are sent to the assembly without finishing machining, which reduces the complexity and logistics of the process. In conditions of dry friction hardened steel discs 45 and 40Kh increase wear resistance up to 100 times. The service life of parts strengthened by laser and plasma hardening is repeatedly increased. Laser hardening differs from plasma hardening by higher cost of equipment, therefore it is preferable in large-scale production. Plasma installation UDGZ-200, thanks to manual operation, it is possible to temper the surfaces inaccessible or inaccessible to other hardening methods. This, together with the low cost of equipment, makes plasma hardening cost-effective in conditions of single-unit and small-scale productions.
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