난삭재 가공을 위한 절삭공구 코팅 기술의 개발 동향과 응용

Development trends and applications of coating technology for cutting tool in machining of difficult-to-cut materials

Since the 2000s, Arc Ion Plating (AIP) technology has been introduced to industry for the synthesis of nitride-based nanostructured coatings, and has been mainly applied to molds, cutting tools, and industrial components that require wear resistance and durability. Currently, plasma coating technologies for cutting tools in Korea have reached a high level of technological maturity, exhibiting excellent physical properties, and extensive research is ongoing depending on characteristics, materials, and processes. In particular, as seen from the perspectives of enhanced mechanical properties, oxidation resistance, wear resistance, and material science, the industrial advancement achieved through multifaceted research to extend the service life of these coatings is a critical factor. The utilization of cutting tools, encompassing both upstream and downstream industries, holds significant potential for future development when combined with next-generation coating technologies and advanced tool concepts, thereby forming the foundation for a sustainable manufacturing industry. In this study, we summarize the properties of materials defined as nanocomposite coatings synthesized using plasma sources, review trends and technologies as applied to the cutting tool industry, and discuss future directions for development.