Characterization of Ceramics Coatings Processed by Sol-Gel for Cutting Tools
Source abstract
Abstract
In order to obtain better cutting tool performance, the coatings appear as an alternative in the machining process. The goal of the coating is to improve tribological conditions in the chip-tool and tool-workpiece interfaces. On the other hand, the use of coated tools decreases the wear of the tools. This study discusses the ceramic coatings characterization deposited in WC tools. The Al2O3 and TiO2 films present properties such as thermal stability, chemical inertia, high hardness, and good mechanical properties. These coatings were prepared by sol-gel technology. The results indicated that the multilayer coating presents better adhesion on the substrate. Moreover, lower coefficients of friction were found for the coated tools. The analysis of variance (ANOVA) was used to evaluate the influence of the cutting parameters and tool coating on the cutting force. The lower cutting force was obtained using the multilayer-coated tool. Thus, the sol-gel method appears as a novel technique to deposit coating in the WC tools to improve their performance.
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Research context
OpenAlex topics: Metal and Thin Film Mechanics · Advanced materials and composites · Tribology and Wear Analysis
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Production Engineering, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Pampulha, Belo Horizonte CEP 31270-901, MG, Brazil
Department of Mechanical Engineering, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Pampulha, Belo Horizonte CEP 31270-901, MG, Brazil
Centro Tecnológico de Fundição Marcelino Corradi–SENAI–CETEF–Itaúna CEP 35680-270, MG, Brazil
Faculty of Engineering, Universidade de Itaúna, Itaúna CEP 35680-142, MG, Brazil
Department of Materials and Construction Engineering, Universidade Federal de Minas Gerais, Avenida Antônio Carlos, 6627, Pampulha, Belo Horizonte CEP 31270-901, MG, Brazil
Department of Mechanical Engineering, Universidade de São Paulo, Av. Trabalhador São-Carlense, 400, Centro, São Carlos CEP 13566-590, SP, Brazil
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