This paper attempts to produce anti-wear surface layers using a hybrid supersonic-electrospark method. Coatings made of WC12Co and WC17Co were applied using the TAFA-JP-5000 supersonic spraying system. Modification of the coatings by electrical discharge machining was performed using an ELFA-541 device. The evaluation of the coating properties was carried out based on microstructure analysis, tribological tests, and microhardness and roughness measurements.The term “thermal spraying” covers a group of processes that use thermal energy to melt material and kinetic energy to deposit it onto a substrate.
Molten particles strike a specially prepared surface, deform, and adhere to it while simultaneously undergoing rapid cooling. Subsequently, particles falling one upon another form a coating. (…)
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Source: Logistyka Magazine