Study of Rake Angle Variation with Focus on Tool Wear, Delamination, and Cutting Forces in Drilling of CFRP Materials

Abstract:

Composite fiber products and components are widely used in various industries, from highly stressed structural elements in the aerospace industry to sports equipment. In order to achieve the desired final shape, these materials are often subjected to various machining methods. Due to the inhomogeneous structure of composites and the different physical and mechanical properties of the matrix and reinforcement, specific problems arise during machining, such as delamination, intensive tool wear, increased temperature in the cutting area, or poor surface finish.This work deals with the observation of delamination size, wear, and cutting forces when drilling holes in carbon composites with tools with different rake angles. The result of this work is a recommendation for the geometry of tools for drilling this type of carbon composite.

• Periodical: Solid State Phenomena (Volume 382)
• Pages: 19-25
• DOI: https://doi.org/10.4028/p-T1iDgT
• Online since: December 2025
• Authors: Tomas Knapek*
• Keywords: CFRP, Delamination, Tool Geometry, Tool Wear

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