Difference in Wear Patterns of Diamond Cutting Tool Depending on Work Materials

Abstract

For profound understanding of wear mechanisms in diamond machining, thermodynamics analyses and an erosion test are carried out. The results show that there are three different mechanisms. First one is graphitization, the second oxidization-deoxidization reaction and the third carbide formation. The wear mechanisms depend strongly on the ambient oxygen and/or cleanliness of metal surface to be machined in contact with diamond. These results suggest how to extend applications of diamond tool and possible methods to suppress the tool wear.

Polishing of single point diamond tool based on thermo-chemical reaction with copper

“…Tanaka et al stated that some thermo-chemical reactions between a diamond tool and a work material cause tool wear [6]. The mechanisms of tool wear are classified into three types, i.e., graphitization, oxidization-deoxidization reaction, and carbonization.…”

Microscale Patterning of Single Crystal Diamond Using Sidero-Metal/Diamond Thermochemical Reaction

“…Thermochemical reaction between diamond and sidero-metal at high temperatures are caused by; diffusion of carbon from diamond into the sidero metal [9], oxidation-reduction reaction between diamond and the metal [10], combustion of diamond [11], and carbide formation [10]. We detail these reactions.…”