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CD Laboratory for Advanced Coated Cutting Tools
This CD Laboratory researches the fundamentals and technical possibilities for optimising carbide coatings for wear-resistant cutting tools for the machining industry.
The ongoing trend in the machining industry towards ever higher productivity and cost efficiency is resulting in constantly increasing cutting and feed speeds, while at the same time demanding longer tool life. In most cases, carbide cutting tools are used, which consist of a carbide core surrounded by hard, wear-resistant layers. These layers can be made considerably more resistant by further optimising the coating process.
Typically, different types of carbide are used depending on the coating technique and the deposited layer. The choice of post-treatment, and in particular its parameters, also depends significantly on the coating technique and the coating material. The combination of carbide grade and coating material in turn determines the field of application. However, there are no systematic studies on how wear and damage mechanisms depend on the type of machining process and the combination of carbide substrate and coating. This CD Laboratory will now investigate these mechanisms and draw conclusions for optimising the microstructure of the coating, the design of the coating composition and architecture and suitable post-treatments. To this end, the coated carbide samples will be analysed directly after coating, post-treatment and machining using high-resolution methods with the aim of better understanding the principles of coating growth and the advantages of producing new coating materials. Based on these findings, the substrate/coating interface, the coating itself and the post-treatment can be optimised for the respective application and the economic viability for industrial use can be tested. It is expected that the application of this novel, holistic research approach will lead to the development of modern, high-performance coated carbide tools with significantly improved cutting performance.
Christian Doppler Forschungsgesellschaft
Boltzmanngasse 20/1/3 | 1090 Wien | Tel: +43 1 5042205 | Fax: +43 1 5042205-20 | office@cdg.ac.at
© 2020 Christian Doppler Forschungsgesellschaft