Mass Erosion and Material Transfer at the Deposition of Layers by Inverse Electroerosion

Abstract

The deposition and alloying of the superficial layers by inverse electroerosion or by electric spark given by a vibrating electrode permits to obtain a large scale of properties at the surface of metallic materials from tools, machines organs, electric contacts, etc. During the inverse electroerosion, the evaporated and ionizated material from electrode (+) under the influence of temperature and electric field, is transferred and deposed on the surface of the part (-). The intensity of material transfer depends on the parameters of the electrical discharge between electrodes, on the time of work and on the nature of the electrodes. This paper work wants to establish the type of evolution in time of the quantity of erodated material from electrode and deposed on the surface of the part. The experimental results are in accordance with the theory of the phenomena of erosion by temperature mixed with the phenomena of massic erosion. The results show that the deposed mass increases by the specific time of deposition until it reaches maxim value, then it decreases.

Keywords

• erosion
• spark
• discharge
• electrode