Electrodeposited diamond coating with protection by diamond micron powder in a dressing tool. Part 2. Tool performance

Resumo

The paper compares the results of tool life testing of dressing rollers with conventional electrodeposited diamond coating (EDC) and with protected EDC. The protection of EDC by diamond powder is demonstrated to extend the effective tool life (for the tools manufactured by the electroforming process) by 90% and the total tool life (i.e., till eventual failure of EDC) by 125%. The time history of the diamond grain depth in the bond has been theoretically clarified and this parameter has been found to be related to wear characteristics of the bond and diamond grains.