The authors have developed a combined processing method for obtaining modified surfaces. A theoretical and experimental study of surface undulation is presented. Comparative wear tests have shown the advantages of the proposed technology in comparison with traditional hardening methods - HFC hardening and electromechanical processing

This article presents the results of deformation-strength properties measurement and microstructural analysis of heterogeneous polymer matrix consisting of thermoset and thermoplastic polymers. Thermosetting material is a diamino-diphenil sulfon-cured epoxy oligomer. Polysulfone was used as thermoplastic material. Two different technological processes were used to obtain heterogeneous polymer matrix: the material was mixed in the block, or layered material was produced in which a layer of thermoplastic material alternated with a layer of epoxy oligomer.

The comparative tests of asbestos-containing EM-1 and asbestos-free BAC friction bands were conducted. The results indicate that BAC friction bands provide more stable friction coefficients. The usage of BAC friction bands may reduce maintenance costs for the brakes of powered industrial machines.

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