ENHANCEMENT OF DIAMOND TURNED ALUMINUM ALLOY MIRROR SURFACE BY CHEMICAL TREATMENT

摘要

Nano regime machining is an emerging field and plays a vital role in a wide range of application areas including metal optics. Of the many technologies, Diamond Turn Machining (DTM) is one of the widely used technologies for metal optics applications. Use of ultra precision machine and the ultra sharp single crystal diamond tool enables to obtain size & shape accuracies of few hundreds of nm and surface finish of few tens of nm on the machined components. However, the signature of the tool and the machine is transferred on the machined surface and affects the it's performance. Hence, a secondary process is necessary to enhance the surface quality of diamond turned metal optics. In this direction, investigations are carried out on the diamond turned aluminum alloy metal mirror surface treated with chemicals and their effect on the enhancement of the surface finish and reflectivity are reported in this paper.