Influence of Grooves Angle of Textured Ceramic Tools on the Final Roughness and Cutting Forces of Cold Work Tool Steel

Abstract:

Ceramic tools are a feasible solution for machining hard steels due to their excellent performance in high-temperature environments, which improves productivity. However, the high cutting speeds achieved with ceramic tools can generate cutting temperatures so high that they damage the surface roughness of the component. Therefore, this study aims to analyze the influence of different texturing inclinations on the final roughness of the component and the cutting forces during cutting on Al₂O₃ with TiC for the turning of 1.2990 cold work tool steel. The experimental setup involved testing five different texture grooves inclinations on the rake face of CNGA 120408 inserts, with a recommended cutting speed of 180 m/min, feed of 0.15 mm/rev, and a depth of cut of 0.5 mm. The tests were carried out in dry conditions. Results showed that the textured tools produced lower cutting forces (8%) and better surface roughness (improvement of 16% for R_a and 18% for R_z) than the reference tool without texture. Therefore, texturing inclinations can be used to mitigate the impact of high cutting speeds on the component during ceramic tool machining.

• Periodical: Key Engineering Materials (Volume 955)
• Pages: 81-88
• DOI: https://doi.org/10.4028/p-gH0GjS
• Online since: September 2023
• Authors: Pablo Fernández-Lucio*, Octavio Pereira Neto, Gorka Urbikain, Eneko Ukar, Luis Norberto López de Lacalle
• Keywords: Ceramic Tools, Cold Work Tool Steel, Hard Turning, Laser Engraving, Roughness, Textured Tools

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