ABSTRACT
This study mainly proposes a set of electrochemical abrasive jet machining, ECAJM, to explore the feasibility and mechanism of Ti-6Al-4V workpiece processing. Through the experimental results of the electrochemical abrasive jet machining system, it was found that the higher the machining current of the ECAJM, without adding SiC abrasive particles, the machining effect of the workpiece is still obvious, but the electrolysis reaction is affected by the gap between the two poles and the TiO2 film. The effect is that the machining current is prone to instability, which in turn reduces the machining effect and the machining profile. When 0.05 wt% #1000 SiC abrasive particles are added, they can effectively assist the TiO2 generated by the Ti6Al-4V workpiece’s surface. The film can assist the electrolyte to effectively remove the separated metal ions, and at the same time, the kinetic energy of the SiC abrasive particles can be cut by different jet pressures, the material removal of the titanium alloy workpiece can be effectively continued, and a higher jet pressure can be obtained. When the machining gap is 0.4 mm, better machining efficiency can be obtained. It is proved that the high-pressure gas drives the abrasive particles, which can make the abrasive particles generate kinetic energy and then hit the characteristics of the workpiece’s surface. Oxide film removal promoter generated the anode surface, effectively facilitate electrolytic reaction is continued, and thus enhance the electrochemical machining efficiency.
