Abstract
In this study, experiments investigated the influence of substrate conditions such as substrate thickness, substrate surface conditions (blasted or polished), substrate temperature, number of overlaps and gun traverse speed on cold sprayed copper and titanium coatings. The influence of substrate thickness, substrate temperature and number of overlaps were different by materials of feedstock powder (copper and titanium). In another words, titanium deposition efficiency increase slightly while copper deposition efficiency decrease slightly with increasing the substrate thickness, the preheated substrate temperature and number of overlaps and gun traverse speed. On the other hands, both deposition efficiency of copper and titanium coating increase slightly with an increase in surface roughness from 0.2 μm Ra (polished surface) to 7 μm Ra (blasted surface). The deposition efficiency of titanium and copper decrease rapidly with increasing gun traverse speed.
