Additive manufactured cerium oxide foils as polishing agent carriers for polishing brittle-hard materials with CNC machine processing

This study approaches to turn subjective influencing factors of CNC polishing into more deterministic ones by using cerium oxide foils in a similar way to CNC grinding tools. Due to the high cerium oxide concentration of those foils, coolant lubrication is sufficient without the need of a polishing slurry, enabling polishing processes on CNC grinding machines. A surface roughness Sq ≤ 50nm could be achieved.