Evaluation of the Impact of Diamond Film Hardcoatings on the Machining of Non-Ferrous Materials. Final Report. Volume 1

摘要

The increased usage of very abrasive non-ferrous alloys including Silicon-Aluminum alloys is requiring the development of low-cost wear resistant tooling to replace cemented carbides(WC/Co). Developments with Chemical Vapor Deposition (CVD) of diamond films have resulted in high hardness, high thermal conductivity and low frictional coefficient of diamond in hardcoating for cutting tools. This program evaluated the use of CVD diamond film tool coatings on the cutting performance of WC/Co inserts for the turning of 390 aluminum alloy. The results of this study point the direction to a new class of coated tools offering greater productivity with existing materials, and the opportunity to economically machine new high performance but highly abrasive materials.