Gradys'kyj Y. Rise of wearproof of details of machines by electromagnetic surfacing

The dissertation is devoted to improvement of process of restoratiov and hardening of details of machines and the mechanisms, working at simultaneous influence of friction and cyclic loading. In this work influence of heating substrates before surfacing on structure of the strengthened layer and operational characteristics of products after their restoration by an electromagnetic method is investigated. It is shown, that heating application to substrates before surfacing allows to improve structure of the strengthened layer, eliminates defects which arise after surfacing at room temperature, and reduces size of stretching residual pressure. As a result of it wear resistance increases, the factor of friction decreases, resistance to fatigue failure improves at action of cyclic loadings. Ahhlicftion of new technological process enables to expand assortment of restored details, provides economy of the rquipment and power resources, brings economic benefit, is nonpolluting.