The paper presents a brief study of micro electro spark deposition with using an tungsten electrode. The electrical-discharge alloying with wire electrodes (WEDA) is a machining method performed on EDM machine with using elastically wire electrode such as alloying electrode. Electrode is being made of material which is to be alloyed on the part surface. Attention has been paid to the possibilities of applying hybrid alloying (electrical discharge deposition with mechanical interaction) as a surface improvement process for complex shape parts. The anti-wear coatings were applied on carbon steel C45 with using micro electrical discharges between alloying surface and universal wire electrode. Special attention has been paid to the possibilities of applying mentioned method to increase abrasive wear resistant of tools such as injection moulds and machine parts. Evaluate the elements distribution in the superficial layer. The depth of alloying layer ranges to hundreds micrometers. The alloying with tungsten electrode the layer of large tungsten share constituted. The results of investigations showed that there is a possibility of obtaining the satisfying quality joint between the carbon steel C45 and tungsten layer.Keywords: micro electrical-discharge alloying, micro electro spark deposition, superficial layer, microstructure, micro-hardness
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