Induction and Electric Arc-Based Remelting of Thermally Sprayed Layers – Overview

Abstract

In many cases, the technology enabling the melting of thermally sprayed layers has no alternative. High-performance thermal spraying processes make it possible to obtain densely sprayed layers. However, previous research revealed that sprayed layers are characterised by porosity and numerous material imperfections. The above-named situation results from the specific manner of layer application. The article overviews induction and arc-based technologies enabling the melting of sprayed layers as well as discusses possible post-spray imperfections.