The effect of composite material properties on the wear of carbide end mills

The article discusses the actual problem of cutting tool wear during machining of modern composite materials. The research is aimed at a comprehensive study of the interrelationships between the physical and mechanical properties of the processed material, the geometric parameters of the cutting tool and the nature of its wear. Special attention is paid to the analysis of processes occurring during the milling of fiberglass, which present significant difficulties for mechanical processing due to anisotropy and heterogeneous structure. In the course of the work, a multidimensional analysis of the factors affecting the durability of tools of various brands was carried out. The role of strength characteristics of a composite material, abrasiveness of reinforcing components and thermal phenomena in the cutting zone is investigated. The experimental part includes a comparative assessment of various types of tools with wear-resistant coatings and an analysis of the mechanisms of their destruction. Of particular interest are observations of the behavior of the polymer matrix under thermal action and the consequences of chip sticking to the cutting edge. The key patterns determining the intensity of wear of cutting edges are established. The main factors limiting the durability of cutting tools when working with composites are identified, among which are the problems of chip removal and heat transfer. The obtained results allow us to formulate practical recommendations on the choice of cutting tools and optimization of processing modes. The presented conclusions are important for improving the technological processes of mechanical processing of composite materials and can be applied in production conditions to increase operational efficiency and reduce operating costs.
EDN: APHNIF, https://elibrary/aphnif

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